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MPC observation computed with Astrometrica COD C23 CON Olmen observatory, B-2491 Olmen Belgium, http://www.astronomie.be/alfons.diepvens/cometimages/ OBS A. Diepvens MEA A. Diepvens TEL 0.20-m f/9 Refractor + CCD ACK MPCReport file updated 2023.11.22 15:22:01 NET Gaia DR2 CK21S040 KC2023 11 21.91457 04 53 05.69 +41 39 55.4 17.8 G C23 CK21S040 KC2023 11 21.91746 04 53 05.63 +41 39 55.4 17.6 G C23 CK21S040 KC2023 11 21.92034 04 53 05.54 +41 39 55.6 17.6 G C23 CK21S040 C2023 12 17.91682 04 41 53.65 +41 42 56.0 17.6 G C23 CK21S040 C2023 12 17.92259 04 41 53.50 +41 42 55.7 17.5 G C23 CK21S040 C2023 12 17.92692 04 41 53.40 +41 42 55.7 17.6 G C23 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 S4 | | CCD|C23 |2024-01-08T19:38:49Z | 68.59192 |+41.25446 |0.25 |0.23 | Gaia2|17.5 |0.20 | G| Gaia2|10.5 |1.08 |2.8 | 120|0.17 | 1953| | |C/2021 S4 | | CCD|C23 |2024-01-08T19:45:03Z | 68.59182 |+41.25447 |0.32 |0.31 | Gaia2|17.3 |0.20 | G| Gaia2|10.5 |1.07 |3.0 | 120|0.18 | 1950| | |C/2021 S4 | | CCD|C23 |2024-01-08T19:53:22Z | 68.59131 |+41.25421 |0.23 |0.20 | Gaia2|17.5 |0.21 | G| Gaia2|10.5 |1.01 |3.2 | 120|0.19 | 1739| | permID |provID |trkSub |mode|stn |obsTime |ra |dec |rmsRA|rmsDec|rmsFit|astCat |mag |rmsMag|band|photCat |photAp|logSNR|exp |notes|remarks |C/2021 S4 | ABC0201| CCD|C23 |2024-01-26T21:25:29Z |67.93348 |+40.68991 |0.24 |0.25 |0.13 | ATLAS2|17.7 |0.15 | Rc| ATLAS2| 6.7 |0.88 | 360| K| |C/2021 S4 | ABC0201| CCD|C23 |2024-01-26T21:31:43Z |67.93354 |+40.68951 |0.20 |0.21 |0.13 | ATLAS2|17.5 |0.38 | Rc| ATLAS2| 6.7 |0.98 | 360| K| |C/2021 S4 | ABC0201| CCD|C23 |2024-01-26T21:37:57Z |67.93315 |+40.68943 |0.26 |0.27 |0.13 | ATLAS2|17.8 |0.22 | Rc| ATLAS2| 6.7 |0.83 | 360| K| |C/2021 S4 | ABC0479| CCD|C23 |2024-03-04T20:59:04Z |69.85902 |+39.56259 |0.23 |0.20 |0.18 | ATLAS2|17.6 |0.13 | Rc| ATLAS2| 6.7 |1.00 | 360| K| |C/2021 S4 | ABC0479| CCD|C23 |2024-03-04T21:05:18Z |69.85943 |+39.56261 |0.19 |0.15 |0.18 | ATLAS2|17.3 |0.16 | Rc| ATLAS2| 6.7 |1.20 | 360| K| |C/2021 S4 | ABC0479| CCD|C23 |2024-03-04T21:11:32Z |69.85997 |+39.56233 |0.19 |0.15 |0.18 | ATLAS2|17.7 |0.10 | Rc| ATLAS2| 6.7 |1.19 | 360| K| |C/2021 S4 | ABC0622| CCD|C23 |2024-03-24T20:23:18Z |72.51931 |+39.16643 |0.30 |0.31 |0.19 | ATLAS2|17.1 |0.29 | Rc| ATLAS2| 6.7 |0.79 | 360| K| |C/2021 S4 | ABC0622| CCD|C23 |2024-03-24T20:35:46Z |72.52109 |+39.16587 |0.26 |0.28 |0.20 | ATLAS2|17.4 |0.18 | Rc| ATLAS2| 6.7 |0.86 | 360| K|