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Comet C/2023 A3 (TSUCHINSHAN-ATLAS)- 13 may 2024

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

http://cara.uai.it

Astrometric data for minor planet center (ADES format)

       |C/2023 A3  |        | CCD|B96 |2024-05-13T21:43:52Z   |191.78046  | +0.93405  |0.21 |0.29  |   Gaia2|12.9 |0.04  |   G|   Gaia2| 5.6  |1.83  |3.0   | 0.1|0.35  |   185|     |

       |C/2023 A3  |        | CCD|B96 |2024-05-13T21:57:05Z   |191.77418  | +0.93510  |0.21 |0.29  |   Gaia2|12.9 |0.04  |   G|   Gaia2| 5.6  |1.77  |3.2   | 0.1|0.34  |   175|     |

       |C/2023 A3  |        | CCD|B96 |2024-05-13T22:00:58Z   |191.77236  | +0.93551  |0.17 |0.31  |   Gaia2|12.3 |0.08  |   R|   Gaia2| 5.6  |1.89  |3.0   | 0.1|0.35  |   175|     |

       |C/2023 A3  |        | CCD|B96 |2024-05-13T22:06:32Z   |191.76976  | +0.93583  |0.27 |0.36  |   Gaia2|12.4 |0.08  |   R|   Gaia2| 5.6  |1.54  |3.2   | 0.1|0.35  |   175|     |

Af(rho) parameter according CARA-approach

Af(rho vs. core distance - data obtained from R-filtered CCD-image

ICQ-format - photometry:

ICQ Code:

   2023A3  2024 05 13.92  k 10.9 AR 40.0L 3a450   2.6               ICQ XX BRY04I     C 2.60mST0 K6F KPR 2 U5*0.02       1.2s 1.2 ;Comet Alt.:38.1 Calculated mags:10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9

CometObs format:

C/2023 A3 (Tsuchinshan-ATLAS):

2024  May  13.92  UT: m1=10.9 CCD-R, Dia.=2.6', 40.0-cm Newtonian reflector .

[Comet Alt.:38.1 Calculated mags:10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9,10.9

] (Erik Bryssinck, BRIXIIS)