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COMET C/2022 A3 (LEMMON-ATLAS)

Photometric data obtained from FOCAS-II software

CATALOG: Gaia DR2 - BAND: G

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

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

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

C/2022 A3     26/02/2023 21:57:36  16.75  16.32  16.21  16.18  16.23  16.27  14.3  17.8  B96

C/2022 A3     26/02/2023 21:57:36*  0.01   0.03   0.04   0.14   0.16   0.13     2   3.8  Gai

C/2022 A3     01/03/2023 21:46:28  16.90  16.61  16.60                       11.1  17.3  B96

C/2022 A3     01/03/2023 21:46:28*  0.03   0.06   0.00                          2   4.0  Gai

C/2022 A3     27/03/2023 20:44:24  17.04  16.75  16.72                       13.0  17.6  B96

C/2022 A3     27/03/2023 20:44:24*  0.02   0.01   0.14                          2   3.8  Gai

                                                                     AFRHO         LOG

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

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

C/2022 A3     26/02/2023 21:57:36    3.24   4.16   8.50  16.67   14    377    26  2.576  B96

C/2022 A3     01/03/2023 21:46:28    3.25   4.15   8.49  16.92   11    297    27  2.472  B96

C/2022 A3     27/03/2023 20:44:24    3.41   4.05   8.08  17.08   13    269    21  2.430  B96

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

http://cara.uai.it

Comet C/2022 A3 (LEMMON-ATLAS) (astro.vanbuitenen.nl)

Discovery:  [ CBET 5106 ]

     M. Tichy reports cometary activity of an asteroidal NEOCP candidate (initially reported by ATLAS-MLO on Mar. 1 UT) in follow-up images taken on Mar. 1 by Klet Observatory-KLENOT (246), noting a very condensed 5" coma. Prediscovery positions were reported back to Apr. 2021. Additional reports  of cometary features are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures

246  2022-03-02  M. Tichy           7"

246  2022-03-03  M. Tichy           8"

B96  2022-03-03  E. Bryssinck       7"       7"     130        40x120s

204  2022-03-04  A. Aletti          5"                         45x60s

MPEC E107: COMET C/2022 A3 (Lemmon-ATLAS)