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Comet P/2019 Y2 (FULS)

Photometric data obtained from FOCAS-II software

COD B96

CON E. Bryssinck, Eyckensbeekstraat 2, 9150 Kruibeke

CATALOG: USNO A2.0 / CMC 14-15 - BAND: R

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

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

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

P/2019 Y2     22/03/2020 23:27:01  17.43  16.75  16.46  16.26  16.24  16.25   9.1  17.9  B96

P/2019 Y2     22/03/2020 23:27:01*  0.08   0.07   0.07   0.01   0.01   0.07     2   3.8  Gai

P/2019 Y2     25/04/2020 23:18:36  17.60  17.03  16.70  16.52  16.38  16.39   8.4  17.9  B96

P/2019 Y2     25/04/2020 23:18:36*  0.18   0.17   0.16   0.18   0.25   0.40     3   3.6  Gai

                                                                     AFRHO         LOG

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

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

P/2019 Y2     22/03/2020 23:27:01    1.20   2.17  22.96  16.75    9     13     1  1.115  B96

P/2019 Y2     25/04/2020 23:18:36    1.26   2.22  21.91  16.99    8     12     1  1.080  B96

FoCAs 3.61

www.astrosurf.com/cometas-obs

es.groups.yahoo.com/group/Cometas_Obs

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

http://cara.uai.it

                         COMET P/2019 Y2 (FULS)                                 

     This object was reported on 2019 Dec. 21 UT as a possible comet by D. C. Fuls on behalf of the Mt. Lemmon Survey (G96), noting a 15" condensed coma and a 35" tail (PA 280).  Additional reports of cometary features are as follows:

OC   Date     Reporter           Coma    Tail    PA          Exposures

G40  Dec. 23  B. Ltkenhner        8"     20"     300

H06  Dec. 22  H. Sato            8"x12"                      16x60s

595  Dec. 24  L. Bittesini        5"     15"     300         60x60s

T12  Dec. 24  D. J. Tholen                6"     293

K88  Dec. 27  K. Sarneczky       10"     40"     280-300     9x120s

Q11  Dec. 27  H. Sato            10"     12"     303         10x60s

C10  Dec. 31  J.-F. Soulier      15"     28"      18     

A71  Jan. 3   M. Jaeger          15"     40"     280-285

G40  Jan. 4   G. Gasparovic       5"     30"     300         25x50s

I52  Jan. 4   D. C. Fuls                         290

703  Jan. 4   T. A. Pruyne       13"             300

H06  Jan. 4   H. Sato            18"     50"     285         8x60s

A71  Jan. 6   M. Jaeger          15"     45"     280

X02  Jan. 7   E. Bryssinck       15"     19"     286-306     12x120s

585  Jan. 7   A. Baransky        12"      1'     288         30x60s

According to CBET 4792, COMET P/2013 J4 (PANSTARRS) = P/2019 Y2 (FULS).

Because the arc from 2013 was short, this is considered to be a weak orbit

solution, so the 2019 solution is better.  The MPC has not indicated that the

names will be merged, or if either object name will be withdrawn, so we are

currently maintaining both, with a note to suce effect.