Comet C/2020 T2 (PALOMAR)

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Observation date	image	Photometry (FOCAS)	Afρ	astrometry	Observatory
20210226	X	X		X	B96 - BRIXIIS
20210325	X	X		X	B96 - BRIXIIS
20210412	X	X	X	X	B96 - BRIXIIS
20210416	X	X	X	X	B96 - BRIXIIS
20210420	X	X	X	X	B96 - BRIXIIS
20210425	X	X	X	X	B96 - BRIXIIS
20210429	X	X	X	X	B96 - BRIXIIS
20210430	X	X	X	X	B96 - BRIXIIS
20210501	X	X	X	X	B96 - BRIXIIS
20210502	X	X	X	X	B96 - BRIXIIS
20210527	X	X	X	X	B96 - BRIXIIS
20210529	X	X	X	X	B96 - BRIXIIS
20210606	X	X	X	X	B96 - BRIXIIS
20210607	X	X	X	X	B96 - BRIXIIS
20210612	X	X	X	X	B96 - BRIXIIS
20210613	X	X	X	X	B96 - BRIXIIS
20210702	X	X	X	X	B96 - BRIXIIS
20210720	X	X	X	X	B96 - BRIXIIS

Comet C/2020 T2 (PALOMAR)

Photometric data obtained from FOCAS-II software

COD B96

OBS BRIXIIS Observatory

CATALOG: Gaia DR2 - BAND: G

10x10 20x20 30x30 40x40 50x50 60x60 SNR SB COD

COMET UTC +/- +/- +/- +/- +/- +/- N FWHM CAT

------------ ------------------- ----- ----- ----- ----- ----- ----- ---- ---- ---

C/2020 T2 26/02/2021 22:14:14 15.49 14.81 14.50 14.27 14.16 14.05 14.8 15.9 B96

C/2020 T2 26/02/2021 22:14:14* 0.01 0.02 0.03 0.05 0.04 0.03 3 4.0 Gai

C/2020 T2 25/03/2021 22:16:35 14.75 14.04 13.71 13.48 13.33 13.21 31.1 17.5 B96

C/2020 T2 25/03/2021 22:16:35* 0.02 0.01 0.04 0.04 0.05 0.06 2 3.8 Gai

C/2020 T2 12/04/2021 22:13:51 14.36 13.62 13.27 13.05 12.87 12.74 34.0 18.3 B96

C/2020 T2 12/04/2021 22:13:51* 0.01 0.00 0.01 0.00 0.00 0.01 3 3.6 Gai

C/2020 T2 16/04/2021 21:13:01 14.25 13.52 13.19 12.97 12.81 12.70 19.5 17.5 B96

C/2020 T2 16/04/2021 21:13:01* 0.02 0.03 0.04 0.05 0.05 0.05 3 4.2 Gai

C/2020 T2 20/04/2021 20:58:08 14.16 13.49 13.13 12.88 12.72 12.61 37.3 16.3 B96

C/2020 T2 20/04/2021 20:58:08* 0.01 0.02 0.02 0.03 0.01 0.01 2 3.9 Gai

C/2020 T2 25/04/2021 21:12:17 14.10 13.36 13.00 12.75 12.58 12.45 42.8 17.1 B96

C/2020 T2 25/04/2021 21:12:17* 0.01 0.02 0.02 0.02 0.02 0.02 4 4.0 Gai

C/2020 T2 29/04/2021 20:53:52 13.98 13.24 12.87 12.65 12.47 12.33 51.6 18.1 B96

C/2020 T2 29/04/2021 20:53:52* 0.00 0.00 0.00 0.00 0.00 0.00 3 3.9 Gai

C/2020 T2 30/04/2021 22:12:20 14.03 13.26 12.89 12.67 12.50 12.36 43.1 18.2 B96

C/2020 T2 30/04/2021 22:12:20* 0.01 0.00 0.00 0.00 0.00 0.00 3 3.8 Gai

C/2020 T2 01/05/2021 22:38:31 13.98 13.23 12.87 12.64 12.46 12.32 40.9 18.1 B96

C/2020 T2 01/05/2021 22:38:31* 0.01 0.00 0.00 0.01 0.00 0.01 2 3.9 Gai

C/2020 T2 02/05/2021 21:26:56 13.99 13.24 12.87 12.64 12.47 12.32 50.6 18.4 B96

C/2020 T2 02/05/2021 21:26:56* 0.01 0.00 0.01 0.01 0.00 0.01 3 3.9 Gai

C/2020 T2 27/05/2021 22:07:20 13.69 12.92 12.52 12.26 12.08 11.93 64.4 18.2 B96

C/2020 T2 27/05/2021 22:07:20* 0.00 0.00 0.00 0.00 0.00 0.00 3 3.1 Gai

C/2020 T2 29/05/2021 22:21:00 13.70 12.92 12.51 12.26 12.06 11.91 67.0 18.4 B96

C/2020 T2 29/05/2021 22:21:00* 0.00 0.00 0.00 0.00 0.01 0.00 2 3.1 Gai

C/2020 T2 07/06/2021 22:39:52 13.73 12.91 12.52 12.26 12.07 11.91 41.5 17.8 B96

C/2020 T2 07/06/2021 22:39:52* 0.01 0.01 0.02 0.02 0.02 0.02 3 2.9 Gai

C/2020 T2 12/06/2021 23:06:46 13.69 12.88 12.48 12.23 12.03 11.87 42.8 17.9 B96

C/2020 T2 12/06/2021 23:06:46* 0.01 0.02 0.03 0.02 0.02 0.02 3 2.9 Gai

C/2020 T2 13/06/2021 22:38:41 13.64 12.83 12.43 12.18 11.99 11.84 42.9 18.1 B96

C/2020 T2 13/06/2021 22:38:41* 0.00 0.01 0.00 0.00 0.00 0.00 3 3.1 Gai

C/2020 T2 02/07/2021 22:16:46 13.57 12.78 12.40 12.13 11.92 11.77 33.4 17.1 B96

C/2020 T2 02/07/2021 22:16:46* 0.01 0.01 0.02 0.01 0.01 0.01 5 3.5 Gai

C/2020 T2 20/07/2021 21:10:34 13.68 12.91 12.49 12.21 12.03 11.89 23.9 15.8 B96

C/2020 T2 20/07/2021 21:10:34* 0.01 0.01 0.02 0.02 0.02 0.03 3 3.6 Gai

AFRHO LOG

COMET UTC DELTA r BOX " MAG RSR CM +/- AFRHO OBS

------------ ------------------- ----- ----- ----- ----- --- ----- ---- ----- ---

C/2020 T2 26/02/2021 22:14:14 1.86 2.59 14.82 15.11 15 201 14 2.303 B96

C/2020 T2 25/03/2021 22:16:35 1.59 2.41 17.32 14.22 31 290 9 2.462 B96

C/2020 T2 12/04/2021 22:13:51 1.48 2.31 18.62 13.75 34 357 11 2.553 B96

C/2020 T2 16/04/2021 21:13:01 1.46 2.29 18.84 13.64 20 378 19 2.577 B96

C/2020 T2 20/04/2021 20:58:08 1.45 2.27 19.03 13.56 37 391 10 2.592 B96

C/2020 T2 25/04/2021 21:12:17 1.43 2.25 19.22 13.45 43 416 10 2.620 B96

C/2020 T2 29/04/2021 20:53:52 1.43 2.23 19.34 13.32 52 454 9 2.657 B96

C/2020 T2 30/04/2021 22:12:20 1.42 2.22 19.37 13.35 43 438 10 2.641 B96

C/2020 T2 01/05/2021 22:38:31 1.42 2.22 19.39 13.32 41 451 11 2.654 B96

C/2020 T2 02/05/2021 21:26:56 1.42 2.21 19.41 13.32 51 446 9 2.649 B96

C/2020 T2 27/05/2021 22:07:20 1.43 2.12 19.25 13.00 64 560 9 2.748 B96

C/2020 T2 29/05/2021 22:21:00 1.44 2.12 19.18 13.00 67 559 8 2.747 B96

C/2020 T2 07/06/2021 22:39:52 1.47 2.09 18.80 13.04 42 553 13 2.743 B96

C/2020 T2 12/06/2021 23:06:46 1.49 2.08 18.53 13.01 43 575 13 2.759 B96

C/2020 T2 13/06/2021 22:38:41 1.49 2.08 18.48 12.97 43 602 14 2.780 B96

C/2020 T2 02/07/2021 22:16:46 1.60 2.06 17.19 12.98 33 670 20 2.826 B96

C/2020 T2 20/07/2021 21:10:34 1.75 2.06 15.76 13.18 24 666 28 2.823 B96

Af(rho) data according the CARA-approach is available via request to CARA-coordinator

http://cara.uai.it

Comet C/2020 T2 (PALOMAR) - (astro.vanbuitenene.nl)

CBET 4870: COMET C/2020 T2

Dmitry A. Duev, Astronomy Department, California Institute of Technology, reports his discovery of a 19-th magnitude comet in five 30-s r-band exposures taken with the 1.2-m Schmidt telescope at Palomar (+ ZTF instrument) as part of the Zwicky Transient Facility's Twilight Survey on 2020 oct. 7. After the comet was posted on the Minor Planet Center's PCCP webpage, other CCD astrometrists have also commented on the cometary appearance.