41P/Tuttle-Giacobini-Kresak

41P/Tuttle-Giacobini-Kresak
Reported observations:
2017 July 14.97 UT: m1=10.6, Dia.=5', DC=2. ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.1]
2017 July 02.05 UT: m1=10.7, Dia.=5', DC=2, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto del Castro - Aralla, Leon, Spain; Alt. 1720 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.3]
2017 June 30.63 UT: m1=11.2, Dia.=4.5’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Slightly affected by background stars in coma. Coma diffuse, weakly condensed. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 26.88 UT: m1=[10.6, NEGATIVE, Dia.=3', ... 20x80 B ... Marek Biely (244 m.a.s.l., Brno, Czech Republic) [Already not visible. Fainter than 10.6 mag.]
2017 June 26.52 UT: m1=11.5, Dia.=4.5’, DC=2, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma very diffuse, slight brightening to centre. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 22.74 UT: m1=11.1, Dia.=3.5’, DC=2/3, ... 25cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Close to star. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 21.54 UT: m1=10.4, Dia.=5.4’, DC=2, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Very diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 June 20.94 UT: m1=10.2, Dia.=6', DC=1, ... 10x100 B ... Martin Lehky (Czech Republic)
2017 June 19.94 UT: m1=10.4, Dia.=4.5', DC=1/, ... 10x100 B ... Martin Lehky (Czech Republic)
2017 June 18.94 UT: m1=10.4, Dia.=4', DC=1/, ... 10x100 B ... Martin Lehky (Czech Republic)
2017 June 17.98 UT: m1=14.5 CCD, Dia.=0.30', DC=7/, ... 25-cm reflector f/4.7 ... Sergey Shurpakov (Baran’, Belarus)
2017 June 14.95 UT: m1=9.5, Dia.=5', DC=1, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.2]
2017 June 13.92 UT: m1=10.3, Dia=6', DC=1, no tail, ... 20-cm SCT (50x) ... Carlos Labordena (Castellón, España)
2017 June 12.94 UT: m1=9.8, Dia.=5', DC=1/, ... 10x100 B ... Martin Lehky (Czech Republic)
2017 June 02.99 UT: m1=9.4, Dia.=8', DC=1, ... 10x100 B ... Martin Lehky (Czech Republic)
2017 May  31.96 UT: m1=9.4, Dia.=8', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  30.02 UT: m1=9.2, Dia.=6', DC=1/, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  29.73 UT: m1=9.5, Dia.=3’, DC=3, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma enhances in Swan Band filter. Transparent outer coma, semi-transparent inner coma. Comparison stars checked using Tycho-2 data in Guide 9.0; Method= S; Cat= TK]
2017 May  28.95 UT: m1=9.2, Dia.=6', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  27.95 UT: m1=9.0, Dia.=7', DC=1/, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  27.86 UT: m1=9.8, Dia.=4', DC=2/, ... 25-cm L (42x, 70x, 150x) ... Danil Sidorko (Korenovsk, Russia) [SQM= 20.51]
2017 May  26.92 UT: m1=9.0, Dia.=7', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  26.02 UT: m1=8.8, Dia.=8', DC=1/, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  25.93 UT: m1=9.7, Dia.=1.74', DC=2/, ... 11-cm B (20x) ... Sergey Shurpakov (Baran', Belarus)
2017 May  25.92 UT: m1=11.6 CCD, Dia.=2.19', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  25.01 UT: m1=8.8, Dia.=8', DC=1/, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  24.09 UT: m1=7.8, Dia.=9', DC=2, ... 8-cm R (20x) ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM : 21.5 at zenith]
2017 May  23.98 UT: m1=9.7, Dia=8', DC=2, no tail, ... 15-cm T (30x) ... Carlos Labordena (Castellón, España)
2017 May  23.90 UT: m1=8.7, Dia.=8', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  22.94 UT: m1=8.7, Dia.=8', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  22.89 UT: m1=11.7, Dia.=3', DC=1, ... 30.5-cm L f/4.9 (94x) ... J. P. Navarro Pina (Puerto de la Cadena, Murcia, Spain) [comet poor very diffuse and difficult for observed]
2017 May  21.97 UT: m1=12.1 CCD, Dia.=1.07', DC=6/, ... 25-cm reflector f/4.7 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  21.95 UT: m1=9.6, Dia.=2.00', DC=2; 11-cm B (20x), ... Sergey Shurpakov (Baran', Belarus)
2017 May  21.94 UT: m1=12.1 CCD, Dia.=1.90', DC=7/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  21.88 UT: m1=9.7, Dia.=6', DC=1/, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 May  19.99 UT: m1=9.6, Dia=8', DC=3, no tail, ... 20-cm SCT (50x) ... Carlos Labordena (Castellón, España)
2017 May  19.94 UT: m1=12.0 CCD, Dia.=2.19', DC=4/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  19.91 UT: m1=8.4, Dia.=9', DC=1, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  19.89 UT: m1=9.1, Dia.=6', DC=2, ... 20x80 B ... Marek Biely (Brno, Czech Republic) [Observed through thin high clouds but with almost no interference]
2017 May  19.82 UT: m1=9.2, Dia.=5.2', DC=2, ... 25-cm L (42x, 70x, 150x) ... Danil Sidorko (Korenovsk, Russia)
2017 May  18.97 UT: m1=8.9, Dia.=7', DC=2, ... 42-cm L (42x) ... Martin Lehky (Czech Republic)
2017 May  18.96 UT: m1=8.4, Dia.=9', DC=1/, ... 10-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  18.91 UT: m1=8.7, Dia.=8', DC=2, ... 20x80 B ... Marek Biely (Brno, Czech Republic) [Much fainter than before and very diffuse]
2017 May  18.83 UT: m1=9.5, Dia.=6', DC=2, ... 25-cm L (42x, 70x, 150x) ... Danil Sidorko (Korenovsk, Russia) 
2017 May  17.95 UT: m1=9.8, Dia.=2.24', DC=2/, ... 11-cm B(20x) ... Sergey Shurpakov (Baran', Belarus)
2017 May  17.91 UT: m1=11.7 CCD, Dia.=2.34', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  15.88 UT: m1=8.9, Dia.=2.44', DC=2/, ... 11-cm B(20x) ... Sergey Shurpakov (Baran', Belarus) 
2017 May  14.84 UT:m1=9.2:, Dia.=10', DC=1/, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 May  13.95 UT: m1=11.6 CCD, Dia.=2.34', DC=6, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  12.90 UT: m1=11.7 CCD, Dia.=2.06', DC=6, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  11.90 UT: m1=11.4 CCD, Dia.=2.48', DC=5/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  09.92 UT: m1=11.3 CCD, Dia.=2.34', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  08.76 UT: m1=8.3, Dia.=8.8, DC=1, ... 25x100 B ... David A. J. Seargent (Cowra, NSW, Australia) [Well enhanced using Swan Band filter. Low surface brightness]
2017 May  06.73 UT: m1=8.8, Dia.=9.5’, DC=3/4, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Outer coma large and transparent, slightly brighter but diffused inner coma. Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK]
2017 May  06.21 UT: m1=7.2, Dia.=13', DC=2, no tail, ... 8-cm B (11x) ... Carlos Labordena (Castellón, España)
2017 May  04.83 UT: m1=10.8 CCD, Dia.=2.77', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  04.73 UT: m1=10.6, Dia.=5.5', DC=1, ... 40.0-cm L f/4.5 (36x) ... Seiichi Yoshida (Gunma, Japan)
2017 May  03.88 UT: m1=10.8 CCD, Dia.=2.92', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  03.83 UT: m1=8.4, Dia.=15', DC=1.5, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 May  03.07 UT: m1=7.0, Dia.=15', DC=2/, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m,  42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.7 at zenith]
2017 May  03.02 UT: m1=8.4, Dia.=9', DC=2, ... 8-cm B(10x) ... Martin Lehky (Czech Republic)
2017 May  02.87 UT: m1=9.6 CCD, Dia.=2.34', DC=6/, ... 7-cm refractor f/4.5 + CCD ... Sergey Shurpakov (Baran’, Belarus)
2017 May  02.85 UT: m1=8.6, Dia.=9.11', DC=2/, ... 11-cm B(20x) ... Sergey Shurpakov (Baran', Belarus)
2017 Apr. 30.95 UT: m1=8.3, Dia.=10', DC=2, ... 25x100 B ... Martin Lehky (Czech Republic) [Sidgwick Method]
2017 Apr. 30.27 UT: m1=7.6, Dia.=12', DC=2, ... 20X100 B ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Apr. 28.82 UT: m1=8.3, Dia.=15', DC=1/, ... 13-cm L (52x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Apr. 28.73 UT: m1=8.1, Dia.=10’, DC=4, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Very tenuous and large outer coma, brightens gradually to an opaque inner coma. Enhances in Swan Band filter. Low altitude = 17.2°. Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK]
2017 Apr. 28.07 UT: m1=7.1, Dia.=15', DC=2/, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.6 at zenith]
2017 Apr. 26.901 UT: m1=8.9, Dia.=8', DC=2, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 25.914 UT: m1=8.0, Dia.=10', DC=3, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 25.03 UT: m1=8.0, Dia.=10', DC=2, ... 10x80 B ... Martin Lehky (Czech Republic) [Sidgwick Method]
2017 Apr. 24.917 UT: m1=7.5, Dia.=15', DC=2, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 22.84 UT: m1=7.1, Dia.=15', DC=3 ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Apr. 22.26 UT: m1=6.8, Dia.=18', DC=2, ... 7X50 B ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Apr. 21.11 UT: m1=6.9, Dia.=15', DC=3, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m,  42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.7 at zenith]
2017 Apr. 20.92 UT: m1=7.2, Dia.=15', DC=2, no tail, ... 10.2-cm R (20x) ... Carlos Labordena (Castellón, España)
2017 Apr. 19.96 UT: m1=11.3 CCD, Dia=1.15',DC=6/, ... 0.25-m f/4.7 reflector + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2017 Apr. 19.906 UT: m1=7.2, Dia.=15', DC=2, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 19.89 UT: m1=7.3, Dia.=15', DC=3, ... 20x88 B ... Maik Meyer (Limburg, Germany)
2017 Apr. 19.86 UT: m1=6.9, Dia.=20', DC=3, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia) [S - Sidgwick`s method]
2017 Apr. 19.86 UT: m1=8.1, Dia.=10', DC=3, ... 11-cm B(20x) ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2017 Apr. 18.917 UT: m1=7.1, Dia.=17', DC=2, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 18.89 UT: m1=7.1, Dia.=17', DC=3/, ... 20x88 B ... Maik Meyer (Limburg, Germany)
2017 Apr. 17.79 UT: m1=7.1, Dia.=17', DC=3/, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia) [M - Morris`s method]
2017 Apr. 16.76 UT: m1=6.5, Dia.=11.5', DC=5, ... 25-cm L (42x, 70x) ... Danil Sidorko (Korenovsk, Russia)
2017 Apr. 15.868 UT: m1=7.1, Dia.=11', DC=2, ... 20x80 B ... Neil Norman (FRAS, Ipswich, England)
2017 Apr. 15.85 UT: m1=6.2, Dia.=25', DC=3/, ... 7-cm B (15x) ... Danil Sidorko (Korenovsk, Russia)
2017 Apr. 14.90 UT: m1=6.5, Dia.=16', DC=2, no tail, ... 10.2-cm R (20x) ... Carlos Labordena (Castellón, España)
2017 Apr. 14.90 UT: m1=9.5, Dia.=10', DC=0, ... 30.5-cm L (97x) ... J. P. Navarro Pina (Campos del rio, Murcia, Spain)
2017 Apr. 13.88 UT: m1=6.6, Dia.=14', DC=2, ... 20x88 B ... Maik Meyer (Limburg, Germany)
2017 Apr. 13.86 TU: m1=6.2, Dia.=20', DC=3, ... 20x80 B .... Neil Norman (FRAS, Ipswich, England) [Before Moonrise]
2017 Apr. 12.86 UT: m1=6.6, Dia.=15', DC=2, no tail, ... 8-cm B (11x) ... Carlos Labordena (Castellón, España)
2017 Apr. 12.85 UT: m1=6.2, Dia.=17', DC=2/, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m,  42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. Astronomical twilight, before moonrise. SQM: 20.5 at zenith. Mountain location, very clear sky]
2017 Apr. 07.16 UT: m1=6.8, Dia.=22', DC=3, no tail, ... 8-cm B(11x) ... Carlos Labordena (Castellón, España)
2017 Apr. 07.15 UT: m1=6.0, Dia.=25', DC=2/, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m,  42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. Some moonlight interference. SQM: 20.4 at zenith]
2017 Apr. 05.08 UT: m1=6.7, Dia.=23', DC=2/, ... 10x50 B ... Maik Meyer (Limburg, Germany)
2017 Apr. 05.01 UT: m1=7.3, Dia.=10', DC=3, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Apr. 04.13 UT: m1=6.6, Dia.=17', DC=2/, ... 10x50 B ... Maik Meyer (Limburg, Germany)
2017 Apr. 04.10 UT: m1=6.4, Dia.=25', DC=3, ... 12x45 monocular ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m,  42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.7 at zenith]
2017 Apr. 02.97 UT: m1=10.8 CCD, Dia.=1.93', DC=6/, ... 0.15-m f/3.2 reflector + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2017 Apr. 02.14 UT: m1=7.0, Dia.=20', DC=3, no tail, ... 8-cm B(11x) ... Carlos Labordena (Castellón, España)
2017 Apr. 02.09 UT: m1=7.2, Dia.=18', DC=3, ... 20x80 B ... Marek Biely (Brno, Czech Republic, 244 m.a.s.l.)
2017 Apr. 01.86 UT: m1=8.5, Dia:10', DC=3, ... 30.5-cm L (47x) ... J. P. Navarro Pina (Bullas, Murcia, Spain)
2017 Apr. 01.16 UT: m1=6.5, Dia.=20', DC=3, ... 10x50 B ... Juan Jose Gonzalez (Candanedo de Fenar, Leon, Spain; Alt. 1060 m, 42º 49' N, 5º 34' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.4 at zenith. Mountain location, very clear sky]
2017 Mar. 31.92 UT: m1=7.0, Dia.=15', DC=1, ... 20X80 B ... Valentín Díaz (Aspe, Alicante, España)
2017 Mar. 31.83 UT: m1=7.3, Dia.=11', DC=5, ... 25-cm L (42x & 70x) ... Danil Sidorko (Korenovsk, Russia) 
2017 Mar. 29.89 UT: m1=7.2, Dia.=15', DC=3, ... 7x50 B ... Francios Kugel (Dauban, France)
2017 Mar. 29.83 UT: m1=7.4, Dia.=18', DC=5, ... 25-cm L (42x & 70x) ... Danil Sidorko (Korenovsk, Russia) 
2017 Mar. 29.16 UT: m1=7.3, Dia.=20', DC=2, no tail, ... 8-cm B(11x) ... Carlos Labordena (Castellón, España)
2017 Mar. 28.89 UT: m1=7.7, Dia.=17', DC=2, ... 20x80 B ... Marek Biely (Brno, Czech Republic, 244 m.a.s.l.)
2017 Mar. 28.85 UT: m1=7.7, Dia.=10', DC=4, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Mar. 28.10 UT: m1=6.5, Dia.=25', DC=3, ... 5x30 monocular ... Juan Jose Gonzalez (Collado del Fresno, Asturias, Spain; Alt. 1280 m, 43º 10' N, 5º  54' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.5 at zenith]
2017 Mar. 27.86 UT: m1=7.7, Dia.=14', DC=3, ... 20x80 B ... Marek Biely (Brno, Czech Republic, 244 m.a.s.l.)
2017 Mar. 26.93 UT: m1=8.1, Dia.=12', DC=2/, ... 20x80 B ... Marek Biely (Brno, Czech Republic, 244 m.a.s.l.) [Relatively bright and large]
2017 Mar. 26.92 UT: m1=7.0, Dia.=18', DC=4, ... 8x56 B ... Sandor Szabo (Hungary)
2017 Mar. 26.82 UT: m1=7.0, Dia.=15', DC=3, ... 8.8-cm B (20x) ... Mail Mayer (Limburg, Germany)
2017 Mar. 25.90 UT: m1=7.3, Dia.=17', DC=2/, ... 8.8-cm B (20x) ... Mail Mayer (Limburg, Germany)
2017 Mar. 25.894 UT: m1=7.1, Dia.=18', DC=4, ... 11.4-cm L f/8 (45x) ... Neil Norman (FRAS, Ipswich, England)
2017 Mar. 25.83 UT: m1=10.0, Dia.=7', DC=6, ... 30.5-cm L f:4.9 (97x) ... J. P. Navarro Pina (El Ardal, Murcia, Spain) [altitude= 700 mts., Lm= 5.9]
2017 Mar. 24.95 UT: m1=7.5, Dia.=17', DC=4 ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia) (Lm=6.2)
2017 Mar. 24.898 UT: m1=7.4, Dia.=15', DC=4, ... 11.4-cm L f:8 (45x) ... Neil Norman (FRAS, Ipswich, England)
2017 Mar. 24.84 UT: m1=7.1, Dia.=19, DC=1/, ... 8.8-cm B (20) ... Maik Meyer (Limburg, Germany)
2017 Mar. 23.81 UT: m1=10.8 CCD, Dia.=15', DC=6, ... 20-cm L +CCD ... Danil Sidorko (Korenovsk, Russia) 
2017 Mar. 23.80 UT: m1=8.2, Dia.=8.0', DC=5/, ... 25-cm (42x) ... Danil Sidorko (Korenovsk, Russia) 
2017 Mar. 23.75 UT: m1=8.9, Dia.=22', DC=1/, ... 6-cm B (20x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Mar. 23.73 UT: m1=7.8, Dia.=18', DC=6/, ... 15x70 B ... Danil Sidorko (Korenovsk, Russia) 
2017 Mar. 22.83 UT: m1=7.7, Dia.=15', DC=2, no tail, ... 8-cm B (11x) ... Carlos Labordena (Castellón, España)
2017 Mar. 22.58 UT: m1=7.3, Dia.=16', DC=2, ... 10x70R ... Seiichi Yoshida (Ibaraki, Japan)
2017 Mar. 22.54 UT: m1=8.3, Dia.=10', DC=3/,... 40.0-cm L f/4.5 (36x) ... Seiichi Yoshida (Ibaraki, Japan)
2017 Mar. 21.875 UT: m1=8.2, Dia.=5', DC=3, ... 11.4-cm L f:8 (45x) ... Neil Norman (FRAS, Ipswich, England)
2017 Mar. 21.08 UT: m1=8.0, Dia.=8', DC=2, ... 20x100 B ... Marco Antonio Coelho Goiato (Araçatuba, Brazil) [Comet altitude: 15º]
2017 Mar. 21.04 UT: m1=8.6, Dia.=22', DC=2, ... 6-cm B (20x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Mar. 21.03 UT: m1=8.9, Dia.=10', DC=3, ... 13-cm L (26x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Mar. 20.875 UT: m1=9.2, Dia.=7', DC=3, ... 11.4-cm L f:8 (45x) ... Neil Norman (Ipswich, England)
2017 Mar. 20.02 UT: m1=7.5, Dia.=20', DC=2/, ... 10x50 B ... Juan Jose Gonzalez (Puerto de Aralla, Leon, Spain; Alt. 1530 m, 42º 54' N, 5º 48' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 21.7 at zenith]
2017 Mar. 19.88 UT: m1=7.9, Dia.=10', DC=2, no tail, ... 8-cm B (11x) ... Carlos Labordena (Castellón, España)
2017 Mar. 19.87 UT: m1=8.0, Dia.=8', DC=3, no tail, ... 20-cm SCT (50x) ... Carlos Labordena (Castellón, España)
2017 Mar. 18.95 UT: m1=9.6, Dia.=5', DC=--, ... 30-cm L (50X) ... Valentín Díaz (La Romaneta, Alicante, España)
2017 Mar. 18.84 UT: m1=9.5, Dia.=5', DC=3, ... 30.5-cm L f:4.9 (97x) ... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2017 Mar. 17.74 UT: m1=9.4, Dia.=7', DC=3, ... 13-cm L (52x) ... Alexsandr Morozov (Novozybkov, Russia)       
2017 Mar. 16.85 UT: m1=7.6, Dia.=15', DC=2, ... 8.8-cm B (20x) ... Maik Meyer (Limburg, Germany)
2017 Mar. 16.82 UT: m1=9.8, Dia.=5', DC=3, ... 30.5-cm L f:4.9 (97x) ... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2017 Mar. 15.89 UT: m1=7.8, Dia.=17', DC=2/, ... 10x50 B ... Juan Jose Gonzalez (Alto del Trichero - Soto y Amío, Leon, Spain; Alt. 1190 m, 42º 46' N, 5º 53' W) [Sidgwick method. Tycho-2 comparison stars. Mountain location, very clear sky. SQM: 21.4 at zenith]
2017 Mar. 15.81 UT: m1=11.2, Dia.=5', DC=3, ... 30.5-cm L f:4.9 (97x) ... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2017 Mar. 15.80 UT: m1=7.5, Dia.=20', DC=3, ... 10x50 B ... Piotr Guzik (Koskowa Góra, Poland; Alt. 810 m, 49º 45' N, 19º 47' E) [Morris method used. Very bright, easily visible in binoculars. SQM-L: 21.1 at zenith]
2017 Mar. 14.84 UT: m1=9.9, Dia.=3', DC=4, no tail, ... 20-cm SCT (50x) ... Carlos Labordena (Castellón, España)
2017 Mar. 14.73 UT: m1=9.6, Dia.=7.5', DC=3, ... 13-cm L (65x) ... Alexsandr Morozov (Novozybkov, Russia)
2017 Mar. 13.76 UT: m2=11.3 CCD, Dia.=1.33', DC=6/, ... 0.25-m f/4.7 reflector + CCD ... S. Shurpakov (Observatory C36, Baran', Belarus)
2017 Mar. 06.97 UT: m1=9.5, Dia.=3.0', DC=5/, ... 25-cm (42x) ... Danil Sidorko (Korenovsk, Russia)
2017 Mar. 06.95 UT: m1=10.5 CCD, Dia.=5', DC=6, ... 20-cm L + CCD ... Danil Sidorko (Korenovsk, Russia)
2017 Mar. 06.60 UT: m1=9.2, Dia.=7’, DC=5, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Enhances well in Swan band filter. Outer coma transparent, inner coma opaque with hints of faint stellaring in good  seeing. Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK]
2017 Mar. 05.95 UT: m1=12.2 CCD, Dia.=6.3', DC=6, ... 20-cm L +CCD ... Danil Sidorko (Korenovsk, Russia)
2017 Mar. 05.93 UT: m1=9.3, Dia.=5.2', DC=6, ... 25-cm (42x) ... Danil Sidorko (Korenovsk, Russia)
2017 Mar. 03.85 UT: m2=11.8 CCD, Dia.=1.48', DC=6/, ... 0.25-m f/4.7 L + CCD ... Sergey Shurpakov (Observatory C36, Baran', Belarus)
2017 Mar. 03.72 UT: m1=10.4, Dia.=5', DC=3, ... 40.0-cm L f/4.5 (36x) ...Seiichi Yoshida (Ibaraki, Japan)
2017 Mar. 02.10 UT: m1=10.2, Dia.=6', DC=2, ... 22-cm L (60x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Mar. 01.90 UT: m1=9.5, Dia.=10', DC=s5, ... 15x70 B & 25.4-cm L (75x & 109x) ... Gabor Santa (Göd, county Pest, Hungary) [15x70 B (m1 and dia.); 25.4-cm L 75x and 109x m2 and sketch. Nelm:6.1, 73 deg above horizon, SQM=19.8]
2017 Mar. 01.82 UT: m1=10.4, Dia.=2', DC=2, ... 30.5-cm L f:4.9 (97x) ... J. P. Navarro Pina (Campos del Rio, Murcia, Spain)
2017 Mar. 01.01 UT: m1=9.1, Dia.=7', DC=2, ... 25x100 B ... Juan Jose Gonzalez (Grandota - Oviedo, Asturias, Spain; Alt. 470 m, 43º 21' N, 5º  47' W) [Sidgwick method. Tycho-2 comparison stars. SQM: 20.3 at zenith. Rural location, clear sky]
2017 Feb. 27.80 UT: m1=10.0, Dia.=6', DC=3, ... 20x100 B ... Martin Lehky (Czech Republic)
2017 Feb. 27.03 UT: m1=9.2, Dia.=12', DC=3, ... 10x50 B ... Piotr Guzik (Koskowa Góra, Poland; Alt. 810 m, 49º 45' N, 19º 47' E) [Morris method used. Easy to see, significantly brighter than two days ago. Excellent transparency. SQM-L: 21.3 at zenith]
2017 Feb. 25.915 UT: m1=10.0, m2=13.5, Dia.=3.8', DC=s4, ... 15.3-cm R (68x) ... Gabor Santa (Göd, county Pest, Hungary) [Nelm: 5.7, 66 deg above horizon]
2017 Feb. 25.89 UT: m1=9.5 DSLR, Dia.=7.8', ... 6.8-cm R + DSLR V, f/4.8 ... Mieczyslaw Leszek Paradowski (Lublin, Poland)
2017 Feb. 25.83 UT: m2=12.0 CCD, Dia.=1.33', DC=6/, ... 0.25-m f/4.7 reflector + CCD ... S. Shurpakov (Observatory C36, Baran', Belarus)
2017 Feb. 24.97 UT: m1=10.2, Dia.=6', DC=3, ... 27-cm L (53x) ... Piotr Guzik (Teodorów, Poland, Alt. 287 m, 50º 27' N, 20º 18' E) [Morris method used. Bright, very large. Relatively easy to see in 10x50 binoculars at m1=9.8, Dia.=10', DC=3. Excellent transparency. SQM: 21.3 at zenith]
2017 Feb. 24.91 UT: m1=10.9, Dia.=2.5', DC=3, ... 25.4-cm L f:5 (64x) ... Maik Meyer (Limburg, Germany)
2017 Feb. 24.90 UT: m1=9.4, Dia.=6', DC=2, ... 25x100 B ... Juan Jose Gonzalez (Villasecino, Leon, Spain; Alt. 1220 m, 42º 58' N, 6º 01' W)  [Sidgwick method. Tycho-2 comparison stars. SQM : 21.3 at zenith. Zodiacal light. Mountain location, very clear sky. In 20 cm SCT (77x): m1=10.0]
2017 Feb. 24.75 UT: m1=10.4, Dia.=4.5’, DC=2/, ... 25-cm L f:5 (70x) ... Danil Sidorko (Korenovsk, Russia)
2017 Feb. 23.90 UT: m1=9.9, Dia.=5', DC=3, ... 15.3-cm R (47x) ... Gabor Santa (Göd, county Pest, Hungary) [nelm: 5.6, 66 deg above horizon]
2017 Feb. 23.63 UT: m1=10.5, Dia.=8.6’, DC=4, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Opaque inner coma, transparent outer coma. Central condensation appears faintly stellar at x83; Comet close to 10.3 magnitude star, slight interference. Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ]
2017 Feb. 22.51 UT: m1=10.8, Dia.=4.7’, DC=4/5, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma slightly enhances in Swan Band filter, inner coma opaque. Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ]
2017 Feb. 22.12 UT: m1=11.3, Dia.=3', DC=2, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Feb. 21.94 UT: m1=10.6, m2=13.5, Dia.=3', DC=s4, ... 25.4-cm L (92x) ... Gabor Santa (Göd, county Pest, Hungary) [Nelm: 5.7, 66 deg above horizon]
2017 Feb. 21.12 UT: m1=11.6, Dia.=2.5', DC=2, ... 22-cm L (160x) ... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Feb. 20.46 UT: m1=10.7, Dia.=5.3’, DC=4, ... 25-cm L f:5 (39x) ... Chris Wyatt (Walcha, NSW, Australia) [Coma large and diffuse, transparent outer coma, opaque inner coma. Enhances slightly in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ]
2017 Feb. 18.99 UT: m1=11.4, Dia.=1.6', DC=3/, ... 25.4-cm L f:5 (104x) ... Maik Meyer (Limburg, Germany)
2017 Feb. 17.93 UT: m1=11.8, Dia.=1.5', DC=3, no tail, ... 20-cm SCT (80x) ... Carlos Labordena (Castellón, España)
2017 Feb. 17.83 UT: m1=13.5 CCD, Dia.=1.7', DC=3, ... 20-cm L+CCD ... Danil Sidorko (Korenovsk, Russia)
2017 Feb. 17.70 UT: m1=11.7, Dia.=1.1’, DC=3/4, ... 25-cm L f:5 (83x) ... Chris Wyatt (Walcha, NSW, Australia) [Moonlight. Does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0; Method= M; Cat= AQ]
2017 Feb. 16.84 UT: m1=10.9, Dia.=4', DC=2, ... 20-cm SCT (77x) ... Juan Jose Gonzalez (Alto de la Camperona, Leon, Spain; Alt. 1600 m, 42º 51' N, 5º 12' W) [Sidgwick method. Tycho-2 comparison stars. SQM : 21.4 at zenith. Mountain location, very clear sky]
2017 Feb. 16.77 UT: m1=13.1 CCD, Dia.=1.2', DC=3, ... 20-cm L+CCD ...Danil Sidorko (Korenovsk, Russia) 
2017 Feb. 16.76 UT: m1=12.2, Dia.=1.5', DC=3, ... 25-cm (48x) ...Danil Sidorko (Korenovsk, Russia)
2017 Feb. 16.02 UT: m1=11.8, Dia.=2', DC=2, ... 22-cm L (160x)... Marco Antonio Coelho Goiato (Araçatuba, Brazil)
2017 Feb. 15.86 UT: m1=12.0, Dia.=2.5, DC=0, ... 35.6-cm T f:11 (98x) ... A. Scholten (Bussloo, Netherlands)
2017 Feb. 15.85 UT: m1=10.8, Dia.=&4', DC=3, ... 33-cm L (67x) ... Piotr Guzik (Koskowa Góra, Poland, Alt. 800 m, 49º 45' N, 19º 47' E) [Morris method used. Small (~1'), well condensed central condensation at m2~12.0 immersed in large, diffuse halo. Excellent transparency. SQM: 21.1 at zenith]
2017 Feb. 14.80 UT: m1=11.1, Dia.=&4', DC=3, ... 33-cm L (67x) ... Piotr Guzik (Koskowa Góra, Poland, Alt. 800 m, 49º 45' N, 19º 47' E) [Morris method used. Small (~1'), well condensed central condensation at m2~12.0 immersed in large, diffuse halo. SQM: 20.8 at zenith]
2017 Feb. 13.75 UT: m1=12.5, Dia.=1.7', ... 32.0-cm L f:5 (80x)... Uwe Pilz (Leipzig, Germany)
2017 Feb. 06.78 UT: m1=13.4, Dia.=0.8', DC=3, ... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Ibaraki, Japan)
2017 Jan. 31.68 UT: m1=13.5, Dia.=0.9’, DC=3, ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse with weak central condensation. Close star of 11.1 mag, 1’ away in P.A. 338° on the edge of the coma. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Jan. 30.68 UT: m1=13.6, Dia.=0.8’, DC=2/, ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma diffuse, slight elongation to SE approximately. Slight brightening to centre; does not enhance in Swan Band filter. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Jan. 29.92 UT: m1=12.8, Dia.=2.8′, DC=2/, ... 35-cm L (178x)... Jakub Cerny (Senohraby, Czech Republic)
2017 Jan. 29.68 UT: m1=13.9, Dia.=0.7’, DC=2, ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse. Does not enhance in Swan Band filter. Close to mag 13.5 star, 0.8’ away in P.A. 255°. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2017 Jan. 28.13 UT: m1=12.6, Dia.=2′, DC=2, ... 33-cm L (67x)... Piotr Guzik (Koskowa Góra, Poland; Alt. 800 m, 49º 45′ N, 19º 47′ E) [Sidgwick method. APASS comparison stars. Comet faint and diffuse. At 114x small, condensed central condensation of ~14.0 mag also visible. SQM: 20.9 at zenith]
2017 Jan. 27.97 UT: m1=12.1, Dia.=2.5′, DC=1, ... 32.0-cm L (120x)... Uwe Pilz (Leipzig, Germany)
2017 Jan. 24.78 UT: m1=13.8, Dia.=0.7′, DC=3, ... 40.0-cm L f/4.5 (144x)... Seiichi Yoshida (Ibaraki, Japan)
2017 Jan. 24.23 UT: m1=11.5, Dia.=4′, DC=1/, ... 20-cm SCT (133x)... Juan Jose Gonzalez (Collada de la Cobertoria, Asturias, Spain; Alt. 1190 m, 43º 09′ N, 5º 54′ W) [Sidgwick method. APASS comparison stars. SQM: 21.5 at zenith. Mountain location, very clear sky]
2017 Jan. 23.86 UT: m1=13.5:, Dia.=&1.5′, DC=2, ... 33-cm L (67x)... Piotr Guzik (Koskowa Góra, Poland; Alt. 800 m, 49º 45′ N, 19º 47′ E) [Sidgwick method used. Very faint and diffuse. SQM: 20.9 at zenith]
2017 Jan. 23.64 UT: m1=13.8, Dia.=0.8’, DC=2, ... 25-cm L f:5 (83x)... Chris Wyatt (Walcha, NSW, Australia) [Coma very small and diffuse. Comparison stars checked using APASS data in Guide 9.0; Method= S; Cat= AQ]
2006 Aug. 27.89 UT: m1=12.7, Dia.=2′, DC=3, ... 20-cm SCT (100x) ... Juan José González (Cueto Rosales – Riello, alt. 1550 m, León, España)
2006 July 30.95 UT: m1=11.4, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 July 29.90 UT: m1=11.5:, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 July 22.91 UT: m1=11.4:, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 July 22.88 UT: m1=10.8, Dia=2′, DC=3, ... 23.5-cm SCT (67x) ... Carlos Labordena (Castellón, España)
2006 July 21.39 UT: m1=10.7, Dia.=3.5′, DC=3, ... 20-cm L 62x ... Michael Mattiazzo (Linville, Australia)
2006 July 20.91 UT: m1=10.8, Dia.=2′, DC=3, ... 23.5-cm SCT (94x) ... Carlos Labordena (Castellón, España)
2006 July 20.83 UT: m1=12.1 CCD, Dia.=2.1′, DC=3, ... 25-cm L +CCD s/F ... Toni Scarmato (Calabria, Italia)
2006 July 20.39 UT: m1=11.0:, Dia.=3′, DC=3, ... 20-cm L 92x ... Michael Mattiazzo (Linville, Australia) [in close proximity to mag 10 star]
2006 July 18.92 UT: m1=11.0:, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 July 17.81 UT: m1=11.7 CCD, Dia.=2.1′, DC=3, ... 25-cm L +CCD s/F ... Toni Scarmato (Calabria, Italia)
2006 July 16.92 UT: m1=10.5, Dia.=2.5′, DC=3, ... 20-cm SCT (77x) ... Juan José González (Villanueva de Carrizo, alt. 880 m., León, España)
2006 July 02.90 UT: m1=10.5:, ... 180-mm L f/8 (45x) ... Alexandre Amorim (Florianopolis, Brasil) [moonlight]
2006 June 28.94 UT: m1=10.3, Dia.=3′, DC=3, ... 20-cm SCT (77x) ... Juan José González (Alto del Trichero – Soto y Amío, alt. 1190 m., León, España)
2006 June 25.89 UT: m1=11.1, Dia.=2′, DC=3, ... 23.5-cm SCT(67x) ... Carlos Labordena (Castellón, España)
2006 June 24.90 UT: m1=10.2, DC=1, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 June 24.82 UT: m1=11.8 CCD, Dia.=1.8′, DC=4, ... 25-cm L +CCD ... Toni Scarmato (Calabria, Italia)
2006 June 21.97 UT: m1=9.7, Dia.=5′, DC=3, ... 25×100 B ... Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [20-cm SCT (77x): m1=10.1]
2006 June 21.84 UT: m1=11.6 CCD, Dia.=1.8′, DC=4, ... 25-cm L +CCD ... Toni Scarmato (Calabria, Italia)
2006 June 18.90 UT: m1=10.5, Dia.=1′, DC=1/, ... 180-mm L f/8 (45x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 June 15.89 UT: m1=9.5, Dia.=3´, DC=4, ... 25×100 B ... Willian Souza (Campinas, Brasil)
2006 June 15.89 UT: m1=9.6, Dia.=5′, ... 25×100 B ... Jose G. de S. Aguiar (Campinas, Brasil)
2006 June 14.93 UT: m1=11.1, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 June 14.83 UT: m1=11.3 CCD, Dia=1.8′, DC=4, ... 25-cm L +CCD Unfiltered ... Toni Scarmato (Calabria, Italia)
2006 June 13.90 UT: m1=11.1, Dia.= 1′, DC=0/, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil)
2006 June 07.92 UT: m1=[11.2, ... 180-mm L f/8 (115x) ... Alexandre Amorim (Florianopolis, Brasil) [moonlight interference]
2006 May  30.94 UT: m1=9.8, Dia.=5′, DC=3, ... 25×100 B ... Juan José González (Alto del Castro – Aralla, alt. 1720 m, León, España) [20-cm SCT (77x): m1=10.1]
2006 May  28.83 UT: m1=10.5, Dia.=5′, DC=3, ... 25-cm L ... Toni Scarmato (Calabria, Italia)
2006 May  28.83 UT: m1=10.9, Dia.=3.9′,DC=4, ... 8-cm R ... Toni Scarmato (Calabria, Italia)
2006 May  27.89 UT: m1=11.8, Dia.=90″, DC=3, no tail, ... 23.5-cm SCT (188x) ... Carlos Labordena (Castellón, España)
2006 May  25.94 UT: m1=10.2, Dia.=4′, DC=3, ... 25×100 B ... Juan José González Suarez (Alto del Castro – Aralla, alt. 1720 m, León, España) [20-cm SCT (77x): m1=10.6]
2006 May  19.81 UT: m1=11.7 CCD, Dia.=1.8′, DC=4, ... 25-cm L +CCD unfiltred ... Toni Scarmato (Calabria, Italia)
2006 May  18.93 UT: m1=11.4, Dia.=2.5′, DC=3, ... 20-cm SC (100x), Juan José González Suarez (Alto del Castro – Aralla, alt. 1720 m, León, España)
2006 May. 11.80 UT: m1=12.3 CCD, Dia.=1.8′, DC=4, ... 25-cm L + CCD sin filtro ... Toni Scarmato (Calabria, Italia)
2006 Abr. 29.87 UT: m1=12.5, Dia.=1′, DC=2, no tail, ... 23.5-cm SC (94x) ... Carlos Labordena (Castellón, España)
2006 Abr. 28.94 UT: m1=12.2, Dia.=0.8′, DC=3, ... 20-cm SCT (100x) ... Juan José González Suarez (Alto del Trichero – Soto y Amío, alt. 1190m, León, España)
2006 Abr. 12.76 UT: m1=15.4 CCD, Dia.=0.3′, DC=2, ... 25-cm L CCD+Rc Filter ... Toni Scarmato (Calabria, Italia)
2006 Abr. 02.80 UT: m1=17.8 CCD, Dia.=0.3′, DC=3, ... 25-cm L+CCD ... Toni Scarmato (Calabria, Italia)
2001 Jan. 28.78 UT: m1=[11.0, ... 20-cm L (160x) ... Michael Mattiazzo (Wallaroo, South Australia)
2001 Jan. 25.28 UT: m1=10.6:, Dia.=2', DC=2, ... 25.4-cm SCT (100x) ... Paulo M. Raymundo (94 miles of Salvador, Brazil)
2001 Jan. 24.28 UT: m1=10.8:, Dia.=2', DC=2, ... 25.4-cm SCT (100x) ... Paulo M. Raymundo (94 miles of Salvador, Brazil)
2001 Jan. 18.85 UT: m1=10.5, Dia.=3', DC=4, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Jan. 18.84 UT: m1=10.5, Dia.=1.5', DC=1, ... 25.4-cm T f/6.3 (116x) ... Seiichi Yoshida (Ibaraki, Japan) [very diffused, hard to see]
2001 Jan. 17.85 UT: m1=11.0:, Dia.=3', DC=2, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [Faint object]
2001 Jan. 05.84 UT: m1=10.2, Dia.=3', DC=3, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2001 Jan. 04.10 UT: m1=9.1, Dia.=3.5', DC=6, ... 50-cm L(100x) ... Valery L.Korneev (Zelenograd, Russia)
2001 Jan. 03.30 UT: m1=[11.3, ... 14.3-cm L f/6 (225x) ... Alexandre Amorim (Florianopolis, Brazil) [TYC5622-00836-1 Vt:11.34 b-v: 0.49 used in 01/03/2 001]
2001 Jan. 03.13 UT: m1=9.0, Dia.=3.5', DC=6, ... 50-cm L(100x) ... Valery L. Korneev (Zelenograd, Russia)
2001 Jan. 02.84 UT: m1=9.5, Dia.=5.6', DC=3, ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan)
2000 Dec. 31.18 UT: m1=10.0, Dia.=2.5', DC=4, ... 27-cm L (83x) ... Toth Zoltan (Fertoszentmiklos, Hungary) [Tail: p.a. 285, 1.5']
2000 Dec. 28.85 UT: m1=9.8, Dia.=2.5', DC=4, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2000 Dec. 27.84 UT: m1=10.1, Dia.=2.1', DC=3/, ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan) [being fainter and diffused]
2000 Dec. 26.84 UT: m1=9.4, Dia.=3.0', DC=4/, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2000 Dec. 26.29 UT: m1=9.8, Dia.=1', DC=2, ... 14.3-cm L f/6 (112x) ... Alexandre Amorim (Florianopolis, Brazil) [TYC5589-00372-1 Vt: 9.31 and TYC5589-00449-1 Vt:10. 43 used]
2000 Dec. 25.84 UT: m1=9.1, Dia.=3.3', DC=5, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2000 Dec. 24.83 UT: m1=9.3, Dia.=2.3', DC=2, ... 20-cm L (45x) ... Andrew Pearce (Nedlands, Western Australia)
2000 Dec. 24.18 UT: m1=9.4, Dia.=2.3', DC=4, Tail= 6' PA: 290 deg ... 44-cm L (63x) ... Werner Hasubick (Buchloe, Germany) [lm 15.5, eph. from MPES, checked with Real Sky (DSS)]
2000 Dec. 23.84 UT: m1=9.2, Dia.=2.5', DC=7, ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan) [fading again, but well condensed]
2000 Dec. 23.83 UT: m1=9.2, Dia.=3.2', DC=2, ... 20-cm L (45x) ... Andrew Pearce (Nedlands, Western Australia)
2000 Dec. 22.83 UT: m1=9.0, Dia.=3.0', DC=3, ... 20-cm L (45x) ... Andrew Pearce (Nedlands, Western Australia)
2000 Dec. 22.82 UT: m1=9.1, Dia.=1.8', DC=5/, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [Faint tail visible, 5' long in PA 290.]
2000 Dec. 21.83 UT: m1=8.9, Dia.=2.0', DC=5, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan)
2000 Dec. 21.83 UT: m1=9.0, Dia.=2.3', DC=3, ... 20-cm L (45x) ... Andrew Pearce (Nedlands, Western Australia) [Comet observed in bright sky background with crescent moon only 2 deg away! Comet appeared more diffuse than prvious observation on Dec 18th which May  signify fading from the outburst]
2000 Dec. 20.15 UT: m1=7.9, Dia.=3.5', DC=5, Tail= 0.1 deg ... 11-cm V(Volosov-Newton)(17x) ...  Valery L. Korneev (Zelenograd, Russia)
2000 Dec. 19.75 UT: m1=8.6, Dia.=3.5', DC=3, ... 40x100 B ... Michael Mattiazzo (Wallaroo,South Australia) [Moonlight interference, comet rather diffuse]
2000 Dec. 19.54 UT: m1=7.9, Dia.=2', DC=4, ... 10-cm R f/10 (31x) ... Ed Salmon (Emigration Canyon, UT)
2000 Dec. 19.28 UT: m1=8.6, Dia.=2', DC=2, ... 14.3-cm L f/6 (35x) ... Alexandre Amorim (Florianopolis, Brazil) [moonlight interference, no one 8th magnitude star in the comet position. TYC5573-00276-1 Vt: 8.47 and TYC5573-00107-1 Vt: 8.76 used]
2000 Dec. 18.83 UT: m1=8.0, Dia.=2.7', DC=4/, ... 20-cm L (200x) ... Andrew Pearce (Nedlands, Western Australia) [Comet in outburst. Moderately condensed object easily seen]
2000 Dec. 16.85 UT: m1=8.1, Dia.=3.8', DC=5, ... 32-cm L (58x) ... Yoshimi Nagai (Yamanashi, Japan) [comet clearly in new outburst!, easy object in moonlight interference]
2000 Dec. 16.81 UT: m1=7.9, Dia.=4.8', DC=5, ... 25.4-cm T f/6.3 (62x) ... Seiichi Yoshida (Ibaraki, Japan) [outburst again! as bright as C/1999 T1]
2000 Dec. 03.82 UT: m1=[10.0, Dia.=2.0', ... 20-cm L (100x) ... Andrew Pearce (Nedlands, Western Australia)
2000 Dec. 03.23 UT: m1=12.6, Dia.=2', DC=1, ... 25-cm L (96x) ... C. Segarra (Algimia, Spain)
2000 Dec. 02.83 UT: m1=[10.0, Dia.=2', ... 20-cm L (100x) ... Andrew Pearce (Nedlands, Western Australia) [Diffuse object suspected at the correct position, however brightening sky and lack of a motion check prevent me from bing certain]
2000 Nov. 27.53 UT: m1=10.2:, Dia.=3', DC=4, ... 41-cm L ... Alan Hale (Cloudcroft, New Mexico) [comet clearly in outburst ... bright and easy object]

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