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Comet C/2023 C2 (ATLAS) - 25 aug. 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 (ADES format)

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

       |C/2023 C2  |        | CCD|B96 |2025-08-25T22:44:58Z   |348.25040  |+57.69959  |0.55 |0.61  |   Gaia3|15.5 |0.10  |  Gr|   R|   Gaia3| 5.6  |1.22  |3.5   | 120|0.42  |  3895|     |

       |C/2023 C2  |        | CCD|B96 |2025-08-25T22:54:23Z   |348.24866  |+57.70022  |0.25 |0.35  |   Gaia3|15.5 |0.09  |  Gr|   R|   Gaia3| 5.6  |1.57  |3.2   | 120|0.41  |  4286|     |

       |C/2023 C2  |        | CCD|B96 |2025-08-25T23:03:48Z   |348.24640  |+57.70082  |0.32 |0.41  |   Gaia3|15.7 |0.09  |  Gr|   R|   Gaia3| 5.6  |1.44  |3.2   | 120|0.42  |  4250|     |

Photometric data obtained by use of KPR software:

ICQ Code:

   2023C2  2025 08 25.96  k 15.3 AR 40.0L 3a360   0.6       0.2m178 ICQ XX BRY04I     C 0.56mST0 K6F KPR 0 U3*0.02       1.2s 1.2 ;

CometObs format:

C/2023 C2 (ATLAS):

2025  Aug.  25.96  UT: m1=15.3 CCD-R, Dia.=0.6', 40.0-cm Newtonian reflector , Tail: 0.2 min. in p.a. 178 deg.(Erik Bryssinck, BRIXIIS Observatory)

Af(rho) data according CARA approach

Af(rho) vs core distance [km] - data from Bessel-R filtered CCD-image