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Comet C/2021 S3 (PANSTARRS) - 19 june 2024

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

http://cara.uai.it

Observations of comet C/2021 S3 (PANSTARRS) with my 0.4-m f/3.8 AG16 Orion Optics telescope with clear filter en Bessel-R filter.

Af(rho) data according CARA project

Af(rho) data obtained from photometric Bessel-R filtered ccd-image

Astrometric data for Minor Planet Center (ADES format)

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

       |C/2021 S3  |        | CCD|B96 |2024-06-19T21:29:25Z   |306.47115  |+61.11985  |0.25 |0.33  |   Gaia2|14.2 |0.08  |   R|   Gaia2| 5.6  |1.86  |3.9   | 0.1|0.40  |  1683|     |

       |C/2021 S3  |        | CCD|B96 |2024-06-19T21:41:24Z   |306.46944  |+61.12109  |0.23 |0.30  |   Gaia2|14.9 |0.04  |   G|   Gaia2| 5.6  |2.04  |3.9   | 0.1|0.38  |  1400|     |

       |C/2021 S3  |        | CCD|B96 |2024-06-19T21:50:49Z   |306.46770  |+61.12229  |0.23 |0.32  |   Gaia2|14.9 |0.04  |   G|   Gaia2| 5.6  |2.00  |4.0   | 0.1|0.39  |  1433|     |

       |C/2021 S3  |        | CCD|B96 |2024-06-19T22:00:15Z   |306.46617  |+61.12348  |0.24 |0.32  |   Gaia2|14.9 |0.04  |   G|   Gaia2| 5.6  |2.07  |4.0   | 0.1|0.39  |  1422|     |

ICQ-format:

ICQ Code:

   2021S3  2024 06 19.90  k 11.8 AR 40.0L 3a600   3.1               ICQ XX BRY04I     C 3.12mST0 K6F KPR 2 U5*0.03       1.2s 1.2 ;Comet Alt.:51.7 Calculated mags:11.8,11.8,11.8,11.8,11.8,11.8,11.9,11.9,11.9,11.8,11.8,11.9,11.9,11.9,11.8,11.8,11.8,11.8,11.8

CometObs format:

C/2021 S3 (PANSTARRS):

2024  Jun.  19.90  UT: m1=11.8 CCD-R, Dia.=3.1', 40.0-cm Newtonian reflector .

[Comet Alt.:51.7 Calculated mags:11.8,11.8,11.8,11.8,11.8,11.8,11.9,11.9,11.9,11.8,11.8,11.9,11.9,11.9,11.8,11.8,11.8,11.8,11.8

] (Erik Bryssinck, BRIXIIS)