Comet C/2019 T3 (ATLAS)

Home ABOUT
COMETS MINOR PLANETS
SPECTROSCOPY BLOG

Modification B&W Quickcam Modification Vesta Webcam Buildingproject Genesis camera Synta EQ6 equatorial mount

Observation date	image	Photometry (FOCAS)	Afρ	astrometry	Observatory
20191230	X	X		X	B96 - BRIXIIS
20200115	X	X		X	B96 - BRIXIIS
20200119	X	X		X	B96 - BRIXIIS
20200624	X	X		X	B96 - BRIXIIS
20200711	X	X		X	B96 - BRIXIIS
20200731	X	X		X	B96 - BRIXIIS
20200819	X	X		X	B96 - BRIXIIS
20200905	X	X		X	B96 - BRIXIIS
20200914	X	X		X	B96 - BRIXIIS
20200919	X	X		X	B96 - BRIXIIS
20200921	X	X		X	B96 - BRIXIIS
20201102	X	X		X	B96 - BRIXIIS
20201104	X	X		X	B96 - BRIXIIS
20201106	X	X		X	B96 - BRIXIIS
20201204	X	X		X	B96 - BRIXIIS
20210720	X			X	B96 - BRIXIIS
20210915	X	X	X	X	B96 - BRIXIIS
20210929	X	X		X	B96 - BRIXIIS
20211004	X	X		X	B96 - BRIXIIS
20211024	X	X		X	B96 - BRIXIIS
20211108	X	X		X	B96 - BRIXIIS

Comet C/2019 T3 (ATLAS)

Photometric data obtained from FOCAS-II software

COD B96

OBS BRIXIIS Observatory, Kruibeke, Belgium

CATALOG: Gaia DR2 - BAND: G

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

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

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

C/2019 T3 30/12/2019 19:39:24 18.50 18.38 18.18 18.13 6.3 18.1 B96

C/2019 T3 30/12/2019 19:39:24* 0.26 0.26 0.27 0.40 6 3.8 Gai

C/2019 T3 15/01/2020 22:29:38 18.37 18.00 17.91 17.53 17.63 1.7 18.0 B96

C/2019 T3 15/01/2020 22:29:38* 0.07 0.37 0.62 0.69 1.16 3 3.4 Gai

C/2019 T3 19/01/2020 22:17:07 18.64 18.56 18.46 4.4 18.0 B96

C/2019 T3 19/01/2020 22:17:07* 0.21 0.35 0.45 3 3.7 Gai

C/2019 T3 24/06/2020 23:50:45 17.86 17.66 17.68 11.0 17.6 B96

C/2019 T3 24/06/2020 23:50:45* 0.11 0.06 0.00 2 3.7 Gai

C/2019 T3 11/07/2020 00:17:15 17.86 17.71 17.63 17.43 17.28 17.31 5.9 17.8 B96

C/2019 T3 11/07/2020 00:17:15* 0.11 0.36 0.18 0.15 0.07 0.26 2 3.3 Gai

C/2019 T3 31/07/2020 01:21:39 17.25 16.93 16.72 16.70 16.58 16.60 5.8 18.3 B96

C/2019 T3 31/07/2020 01:21:39* 0.46 0.37 0.30 0.33 0.26 0.23 2 3.9 Gai

C/2019 T3 19/08/2020 00:06:49 17.75 17.46 17.44 17.47 8.0 18.1 B96

C/2019 T3 19/08/2020 00:06:49* 0.15 0.06 0.05 0.02 2 3.9 Gai

C/2019 T3 05/09/2020 21:23:23 17.62 17.38 10.9 18.0 B96

C/2019 T3 05/09/2020 21:23:23* 0.16 0.36 2 4.0 Gai

C/2019 T3 14/09/2020 01:59:43 17.58 17.36 17.41 8.8 17.9 B96

C/2019 T3 14/09/2020 01:59:43* 0.04 0.10 0.09 3 3.2 Gai

C/2019 T3 19/09/2020 02:17:57 17.68 17.43 17.31 17.39 7.6 18.0 B96

C/2019 T3 19/09/2020 02:17:57* 0.06 0.01 0.06 0.04 2 3.9 Gai

C/2019 T3 21/09/2020 01:37:11 17.39 16.68 16.23 15.97 15.98 7.3 18.3 B96

C/2019 T3 21/09/2020 01:37:11* 0.10 0.02 0.01 0.03 0.10 2 3.5 Gai

C/2019 T3 02/11/2020 22:49:25 17.50 17.04 17.03 17.07 6.6 17.5 B96

C/2019 T3 02/11/2020 22:49:25* 0.01 0.10 0.16 0.13 2 3.6 Gai

C/2019 T3 04/11/2020 22:23:56 17.37 16.93 17.03 17.01 6.4 17.8 B96

C/2019 T3 04/11/2020 22:23:56* 0.04 0.08 0.08 0.19 3 3.7 Gai

C/2019 T3 06/11/2020 22:31:23 17.34 17.06 9.9 18.2 B96

C/2019 T3 06/11/2020 22:31:23* 0.06 0.10 2 3.9 Gai

C/2019 T3 04/12/2020 22:17:16 17.32 16.95 8.1 17.7 B96

C/2019 T3 04/12/2020 22:17:16* 0.20 0.08 3 3.7 Gai

C/2019 T3 29/09/2021 19:15:34 16.95 16.39 16.19 16.15 10.7 18.3 B96

C/2019 T3 29/09/2021 19:15:34* 0.13 0.20 0.25 0.24 3 3.8 Gai

C/2019 T3 04/10/2021 19:01:01 17.20 16.67 16.50 16.53 7.6 18.0 B96

C/2019 T3 04/10/2021 19:01:01* 0.09 0.00 0.17 0.22 3 3.9 Gai

C/2019 T3 24/10/2021 21:32:27 17.37 16.95 16.84 5.0 18.2 B96

C/2019 T3 24/10/2021 21:32:27* 0.02 0.10 0.19 3 3.9 Gai

C/2019 T3 08/11/2021 19:05:01 17.36 16.77 16.57 16.62 8.1 17.6 B96

C/2019 T3 08/11/2021 19:05:01* 0.03 0.04 0.04 0.00 2 3.5 Gai

AFRHO LOG

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

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

C/2019 T3 30/12/2019 19:39:24 6.18 6.65 4.46 18.75 6 515 82 2.712 B96

C/2019 T3 15/01/2020 22:29:38 6.23 6.61 4.42 18.78 2 503 296 2.701 B96

C/2019 T3 19/01/2020 22:17:07 6.25 6.59 4.41 18.78 4 504 114 2.702 B96

C/2019 T3 24/06/2020 23:50:45 6.67 6.20 4.14 18.00 11 1041 95 3.017 B96

C/2019 T3 11/07/2020 00:17:15 6.51 6.17 4.23 18.20 6 815 138 2.911 B96

C/2019 T3 31/07/2020 01:21:39 6.29 6.13 4.39 17.52 6 1403 242 3.147 B96

C/2019 T3 19/08/2020 00:06:49 6.06 6.10 4.55 17.87 8 938 117 2.972 B96

C/2019 T3 14/09/2020 01:59:43 5.77 6.06 4.78 17.68 9 997 113 2.999 B96

C/2019 T3 19/09/2020 02:17:57 5.72 6.06 4.82 17.82 8 863 114 2.936 B96

C/2019 T3 21/09/2020 01:37:11 5.71 6.06 4.83 18.02 7 712 97 2.852 B96

C/2019 T3 02/11/2020 22:49:25 5.53 6.01 4.98 17.64 7 931 141 2.969 B96

C/2019 T3 04/11/2020 22:23:56 5.53 6.00 4.98 17.46 6 1102 172 3.042 B96

C/2019 T3 29/09/2021 19:15:34 5.43 6.13 5.08 17.30 11 1278 119 3.107 B96

C/2019 T3 04/10/2021 19:01:01 5.46 6.14 5.05 17.48 8 1096 144 3.040 B96

C/2019 T3 24/10/2021 21:32:27 5.66 6.17 4.87 17.71 5 970 194 2.987 B96

C/2019 T3 08/11/2021 19:05:01 5.87 6.20 4.70 17.71 8 1045 129 3.019 B96

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

http://cara.uai.it

Discovery:

in the course of the "Asteroid Terrestrial-Impact Last Alert System" (ATLAS) search program, was an apparently asteroidal object found on images taken on 2019 Oct. 6.6 UT with a 0.5-m reflector at Mauna Loa, Hawaii, CCD astrometrists elsewhere found cometary activity after the object was posted on the Minor Planet Center's PCCP webpage

R. Weryk, Institute for Astronomy, University of Hawaii, reports finding pre-discovery images of C/2019 T3 on Pan-STARRS images taken at Haleakala, Hawaii, with the 1.8-m reflectors on 2019 Jan. 17.4 (Pan-STARRS1; very condensed with magnitude 20.7-20.8; slight asymmetry to the south, suggesting a short, straight tail in p.a. 180 degrees; full-width-at-half-maximum about 1".5 in 1".0 seeing) and on Jan. 27.4 (Pan-STARRS2; mag 20.5-21.3; marginal images). Weryk adds that i-band Pan-STARRS1 exposures taken on Oct. 15.5 show a condensed coma of diameter 1".8 in 1".2 seeing, with a straight 8" tail in p.a. 220 deg. Thirty stacked 60-s unfiltered images taken by G.Favero and R. Furgoni with a 0.80-m f/4 reflector at the Osservatorio del Celado, Castello Tesino, Italy, on Oct. 10.8 show an elongation and a faint tail about 15" long in p.a. 200 deg; the red magnitude was measured to be 18.1.

The available astrometry has been published on MPEC 2019-U10. The comet will pass 3.30 AU from Jupiter on 2022 Mar. 26 and 2.29 AU from Saturn on 2023 June 2 UT. ( CBET 4678 )