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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

     3I|           |        | CCD|B96 |2025-07-16T21:50:27Z   |262.87927  |-18.33101  |0.22 |0.27  |   Gaia2|16.7 |0.09  |   R|   Gaia2| 3.1  |1.35  |3.6   | 900|0.29  |  5839|K    |

     3I|           |        | CCD|B96 |2025-07-16T22:09:00Z   |262.87155  |-18.33069  |0.30 |0.35  |   Gaia2|16.4 |0.11  |   R|   Gaia2| 3.1  |1.07  |3.7   | 900|0.31  |  5527|K    |

     3I|           |        | CCD|B96 |2025-07-16T22:27:34Z   |262.86315  |-18.32982  |0.20 |0.26  |   Gaia2|16.2 |0.08  |   R|   Gaia2| 5.6  |1.55  |3.6   | 900|0.30  |  6271|K    |

     3I|           |        | CCD|B96 |2025-07-16T22:46:07Z   |262.85496  |-18.32943  |0.22 |0.29  |   Gaia2|16.5 |0.08  |   R|   Gaia2| 5.6  |1.53  |3.6   | 900|0.31  |  6061|K    |

     3I|           |        | CCD|B96 |2025-07-16T22:55:23Z   |262.85091  |-18.32912  |0.23 |0.30  |   Gaia2|16.4 |0.08  |   R|   Gaia2| 5.6  |1.42  |3.6   | 900|0.32  |  6380|K    |

Comet 3I/ATLAS - 16 july 2025

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

http://cara.uai.it

Photometric data obtained from KOPR software

Afρ parameter according CARA approach

Afρ parameter according CARA approch - unfiltered ccd-images