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Comet P/2023 S1 - 5 march 2025

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

http://cara.uai.it

Astrometric data for minor planet center

permID |provID     |trkSub  |mode|stn |obsTime                |ra         |dec        |rmsRA|rmsDec|astCat  |mag  |rmsMag|band|photCat |photAp|logSNR|seeing|exp |rmsFit|nStars|notes|remarks

       |P/2023 S1  |        | CCD|B96 |2025-03-05T21:51:09Z   |128.63891  |+18.00372  |0.27 |0.32  |   Gaia2|16.4 |0.07  |   R|   Gaia2| 5.6  |1.39  |3.9   | 120|0.28  |   505|     |

       |P/2023 S1  |        | CCD|B96 |2025-03-05T22:00:34Z   |128.63845  |+18.00356  |0.18 |0.27  |   Gaia2|16.5 |0.07  |   R|   Gaia2| 5.6  |1.41  |3.1   | 120|0.29  |   522|     |

       |P/2023 S1  |        | CCD|B96 |2025-03-05T22:09:59Z   |128.63786  |+18.00314  |0.24 |0.29  |   Gaia2|16.4 |0.08  |   R|   Gaia2| 5.6  |1.32  |3.1   | 120|0.27  |   506|     |

Photometry obtained with use of KOPR software:

ICQ Code:

  P2023S1  2025 03 05.92  k 14.7 AR 40.0L 3A080   1.2       1.4m304 ICQ XX BRY04I     C 1.24mST0 K6F KPR 0 U9*0.01       1.2s 1.2 ;Comet Alt.:56.0

CometObs format:

P/2023 S1 (PANSTARRS):

2025  Mar.  05.92  UT: m1=14.7 CCD-R, Dia.=1.2', 40.0-cm Newtonian reflector , Tail: 1.4 min. in p.a. 304 deg. (Erik Bryssinck, BRIXIIS Observatory)

Af(rho)-parameter according CARA approach