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Comet C/2023 R1 (PANSTARRS)- 9 may 2026

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 R1  |        | CCD|B96 |2026-05-09T00:24:10Z   |282.61806  | -4.44811  |0.23 |0.36  |  ATLAS2|13.3 |0.09  |  Gr|   R|  ATLAS2| 5.6  |1.84  |4.0   | 120|0.42  |  1444|     |

       |C/2023 R1  |        | CCD|B96 |2026-05-09T00:38:17Z   |282.61383  | -4.44853  |0.25 |0.36  |  ATLAS2|13.2 |0.09  |  Gr|   R|  ATLAS2| 5.6  |1.84  |4.0   | 120|0.43  |  1586|     |

       |C/2023 R1  |        | CCD|B96 |2026-05-09T00:52:24Z   |282.60989  | -4.44904  |0.25 |0.37  |  ATLAS2|13.2 |0.09  |  Gr|   R|  ATLAS2| 5.6  |1.83  |3.8   | 120|0.43  |  1678|     |

Af(rho) parameter according CARA-approach

Photometry with KOPR - ICQ format:

ICQ Code:

   2023R1  2026 05 09.02  k 13.5 AR 40.0L 3A560   0.5               ICQ XX BRY04I     C 0.48mST0 K6F KPR 0 U9*0.03       1.2s 1.2 ;

CometObs format:

C/2023 R1 (PANSTARRS):

2026  May  09.02  UT: m1=13.5 CCD-R, Dia.=0.5', 40.0-cm Newtonian reflector .(Erik Bryssinck, BRIXIIS Observatory)