[Iaude] MPEC T07: COMET C/2023 R2 (PANSTARRS)
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Oct 2 22:13:38 EDT 2023
M.P.E.C. 2023-T07 Issued 2023 October 3, 02:11 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
COMET C/2023 R2 (PANSTARRS)
R. Weryk reports cometary acvitivy of an asteroidal NEOCP candidate
(initially reported by Pan-STARRS 2 - F52 on Sep. 10 UT) in three 60-second
follow-up images taken by CFHT (T14) on Sep. 11 UT, noting a very condensed
0".7 coma and a broad 4" tail at position angle 230-300 deg. H. Sato reported
a very condensed 8" coma and a straight 5" tail at position angle 150 deg
in 8-stacked 120-sec exposures obtained at iTelescope Observatory (Q62) on
Sep. 13 UT.
Observations:
CK23R020* C2023 09 10.58966203 15 42.861+00 29 27.37 20.68wXET007F52
CK23R020 C2023 09 10.60129203 15 42.824+00 29 23.23 20.65wXET007F52
CK23R020 C2023 09 10.61287303 15 42.790+00 29 18.83 20.61wXET007F52
CK23R020 1C2023 09 11.06760 03 15 41.82 +00 26 32.4 21.0 VXET007033
CK23R020 1C2023 09 11.06869 03 15 41.81 +00 26 31.9 20.6 VXET007033
CK23R020 1C2023 09 11.06979 03 15 41.82 +00 26 31.7 21.1 VXET007033
CK23R020 1C2023 09 11.07110 03 15 41.81 +00 26 31.1 20.6 VXET007033
CK23R020 3C2023 09 11.60913603 15 40.345+00 23 14.21 21.04GVET007T14
CK23R020 3C2023 09 11.61035303 15 40.342+00 23 13.76 21.05GVET007T14
CK23R020 3C2023 09 11.61156403 15 40.338+00 23 13.36 20.94GVET007T14
CK23R020 2C2023 09 12.13624903 15 38.64 +00 20 00.6 20.7 GVET007K93
CK23R020 2C2023 09 12.14012703 15 38.60 +00 19 59.4 20.5 GVET007K93
CK23R020 2C2023 09 12.14398703 15 38.62 +00 19 57.7 20.7 GVET007K93
CK23R020 2C2023 09 12.14784803 15 38.58 +00 19 56.1 20.7 GVET007K93
CK23R020 1C2023 09 13.09355 03 15 34.98 +00 13 59.5 21.1 VXET007033
CK23R020 1C2023 09 13.09477 03 15 34.98 +00 13 59.1 20.7 VXET007033
CK23R020 1C2023 09 13.09598 03 15 34.97 +00 13 58.5 20.7 VXET007033
CK23R020 1C2023 09 13.77744 03 15 31.83 +00 09 42.9 VET007Q62
CK23R020 1C2023 09 13.78353 03 15 31.79 +00 09 40.4 19.9 GVET007Q62
CK23R020 KC2023 09 13.99930 03 15 30.79 +00 08 16.1 20.0 RqET007L27
CK23R020 KC2023 09 14.04604 03 15 30.52 +00 07 58.7 19.9 RqET007L27
CK23R020 KC2023 09 14.09353 03 15 30.28 +00 07 40.1 19.9 RqET007L27
CK23R020 1C2023 09 14.12884 03 15 30.07 +00 07 26.0 20.6 VXET007033
CK23R020 1C2023 09 14.13006 03 15 30.05 +00 07 25.5 21.2 VXET007033
CK23R020 1C2023 09 14.13127 03 15 30.05 +00 07 25.2 20.6 VXET007033
CK23R020 KC2023 09 14.25895403 15 29.46 +00 06 36.3 19.9 GXET007W62
CK23R020 KC2023 09 14.27313303 15 29.36 +00 06 31.1 19.9 GXET007W62
CK23R020 KC2023 09 14.28730303 15 29.28 +00 06 25.3 19.8 GXET007W62
CK23R020 1C2023 09 15.12180 03 15 24.45 +00 01 03.4 20.8 VXET007033
CK23R020 1C2023 09 15.12272 03 15 24.46 +00 01 03.0 20.7 VXET007033
CK23R020 1C2023 09 15.12364 03 15 24.46 +00 01 02.7 21.0 VXET007033
CK23R020 C2023 09 15.59199503 15 21.496-00 01 58.62 19.68GVET007F51
CK23R020 C2023 09 15.59570203 15 21.458-00 02 00.15 19.49GVET007F51
CK23R020 1C2023 09 16.14458 03 15 17.70 -00 05 36.3 20.4 VXET007033
CK23R020 1C2023 09 16.14539 03 15 17.71 -00 05 36.5 20.5 VXET007033
CK23R020 1C2023 09 16.14620 03 15 17.71 -00 05 36.9 20.2 VXET007033
CK23R020 !C2023 09 16.16376 03 15 17.60 -00 05 42.7 19.7 GVET007J04
CK23R020 !C2023 09 16.17037 03 15 17.55 -00 05 46.0 19.1 GVET007J04
CK23R020 1C2023 09 17.08928 03 15 10.65 -00 11 50.0 21.1 VXET007033
CK23R020 1C2023 09 17.09003 03 15 10.65 -00 11 50.1 20.8 VXET007033
CK23R020 1C2023 09 17.09078 03 15 10.63 -00 11 50.6 21.0 VXET007033
CK23R020 KC2023 09 17.11300 03 15 10.414-00 11 59.46 20.1 GVET007I81
CK23R020 KC2023 09 17.12517 03 15 10.325-00 12 04.61 20.0 GVET007I81
CK23R020 KC2023 09 17.13734 03 15 10.241-00 12 09.68 20.0 GVET007I81
CK23R020 KC2023 09 17.22213 03 15 09.63 -00 12 40.4 19.8 GVET007X03
CK23R020 KC2023 09 17.23661 03 15 09.51 -00 12 46.2 19.7 GVET007X03
CK23R020 KC2023 09 17.24998 03 15 09.40 -00 12 51.5 19.6 GVET007X03
CK23R020 1C2023 09 17.99951 03 15 03.09 -00 17 54.6 21.3 VXET007033
CK23R020 1C2023 09 18.00031 03 15 03.06 -00 17 55.1 21.3 VXET007033
CK23R020 1C2023 09 18.00112 03 15 03.06 -00 17 55.1 21.4 VXET007033
CK23R020 KC2023 09 18.66886 03 14 56.91 -00 22 22.7 19.7 RqET007E94
CK23R020 KC2023 09 18.68574 03 14 56.75 -00 22 29.2 19.6 RqET007E94
CK23R020 KC2023 09 18.70080 03 14 56.58 -00 22 35.1 19.6 RqET007E94
CK23R020 1C2023 09 19.01460 03 14 53.65 -00 24 46.4 20.9 VXET007033
CK23R020 1C2023 09 19.01535 03 14 53.63 -00 24 46.5 20.1 VXET007033
CK23R020 1C2023 09 19.01610 03 14 53.62 -00 24 47.1 20.3 VXET007033
CK23R020 KC2023 09 19.12218 03 14 52.55 -00 25 30.0 19.4 V ET007A77
CK23R020 KC2023 09 19.13537 03 14 52.44 -00 25 35.8 19.4 V ET007A77
CK23R020 KC2023 09 19.14857 03 14 52.30 -00 25 41.7 19.9 V ET007A77
CK23R020 C2023 09 19.58357603 14 47.902-00 28 38.56 20.44wXET007F52
CK23R020 C2023 09 19.59605803 14 47.763-00 28 43.63 20.14wXET007F52
CK23R020 C2023 09 19.60861603 14 47.647-00 28 48.83 20.44wXET007F52
CK23R020 C2023 09 19.62103903 14 47.521-00 28 53.95 20.32wXET007F52
CK23R020 KC2023 09 19.65746 03 14 47.12 -00 29 06.0 20.1 RqET007E94
CK23R020 KC2023 09 19.67293 03 14 47.02 -00 29 12.7 20.2 RqET007E94
CK23R020 KC2023 09 19.68924 03 14 46.76 -00 29 19.1 20.1 RqET007E94
CK23R020 1C2023 09 20.00018 03 14 43.63 -00 31 31.3 20.4 VXET007033
CK23R020 1C2023 09 20.00081 03 14 43.60 -00 31 31.2 20.3 VXET007033
CK23R020 1C2023 09 20.00145 03 14 43.62 -00 31 31.4 20.6 VXET007033
CK23R020 1C2023 09 20.00239 03 14 43.59 -00 31 32.1 20.4 VXET007033
CK23R020 1C2023 09 20.00336 03 14 43.56 -00 31 32.2 20.3 VXET007033
CK23R020 1C2023 09 20.40337103 14 39.196-00 34 17.36 19.69GVET007G96
CK23R020 1C2023 09 20.40857903 14 39.120-00 34 19.60 19.76GVET007G96
CK23R020 1C2023 09 20.41378103 14 39.088-00 34 21.83 19.52GVET007G96
CK23R020 1C2023 09 20.41899103 14 39.012-00 34 24.06 19.59GVET007G96
CK23R020 KC2023 09 20.97437 03 14 32.74 -00 38 15.2 20.1 GXET007G02
CK23R020 KC2023 09 20.98829 03 14 32.61 -00 38 21.1 19.8 GXET007G02
CK23R020 KC2023 09 21.00278 03 14 32.43 -00 38 26.8 20.1 GXET007G02
CK23R020 KB2023 09 21.07296103 14 31.567-00 38 56.90 20.0 GXET007K74
CK23R020 KB2023 09 21.10239803 14 31.234-00 39 09.18 19.9 GXET007K74
CK23R020 KB2023 09 21.11185903 14 31.080-00 39 13.97 19.8 GXET007K74
CK23R020 1C2023 09 21.15805 03 14 30.52 -00 39 32.3 20.7 VXET007033
CK23R020 1C2023 09 21.15868 03 14 30.49 -00 39 32.6 20.6 VXET007033
CK23R020 1C2023 09 21.15931 03 14 30.48 -00 39 32.9 20.4 VXET007033
CK23R020 C2023 09 21.57434803 14 25.567-00 42 26.36 20.24wXET007F52
CK23R020 C2023 09 21.58670303 14 25.401-00 42 31.36 20.31wXET007F52
CK23R020 C2023 09 21.59906303 14 25.248-00 42 36.65 20.16wXET007F52
CK23R020 KB2023 09 23.11652 03 14 05.681-00 53 21.05 20.0 VZET007J57
CK23R020 KB2023 09 23.12987 03 14 05.506-00 53 26.52 20.1 VZET007J57
CK23R020 KB2023 09 23.14339 03 14 05.266-00 53 32.89 20.1 VZET007J57
CK23R020 KB2023 09 24.00357 03 13 53.22 -00 59 42.8 19.9 GXET007M45
CK23R020 B2023 09 24.01537 03 13 53.01 -00 59 47.1 20.1 GXET007M45
CK23R020 KB2023 09 24.02125103 13 53.03 -00 59 50.1 19.8 GVET007I93
CK23R020 KC2023 09 24.02314 03 13 52.96 -00 59 51.0 19.8 RqET007C10
CK23R020 B2023 09 24.02360 03 13 52.83 -00 59 51.0 19.9 GXET007M45
CK23R020 KB2023 09 24.03119303 13 52.83 -00 59 54.5 19.8 GVET007I93
CK23R020 KB2023 09 24.04077403 13 52.70 -00 59 58.5 19.6 GVET007I93
CK23R020 KC2023 09 24.04492 03 13 52.63 -01 00 00.5 19.5 RqET007C10
CK23R020 KC2023 09 24.06669 03 13 52.30 -01 00 10.0 19.4 RqET007C10
CK23R020 KC2023 09 24.64032803 13 43.726-01 04 16.25 20.7 VqET007Q21
CK23R020 KC2023 09 24.65081903 13 43.596-01 04 22.55 19.9 VqET007Q21
CK23R020 KB2023 09 24.99019 03 13 38.465-01 06 51.01 19.6 GXET007L38
CK23R020 KB2023 09 25.00564 03 13 38.222-01 06 58.03 19.4 GXET007L38
CK23R020 KC2023 09 25.09018103 13 36.89 -01 07 34.9 19.5 RqET007215
CK23R020 KC2023 09 25.09341003 13 36.83 -01 07 36.1 19.5 RqET007215
CK23R020 KC2023 09 25.09663903 13 36.77 -01 07 37.2 19.4 RqET007215
CK23R020 KC2023 09 25.10126803 13 36.64 -01 07 39.6 20.0 GUET007L06
CK23R020 KC2023 09 25.11321303 13 36.48 -01 07 44.5 19.9 GUET007L06
CK23R020 KC2023 09 25.12515803 13 36.30 -01 07 49.7 19.7 GUET007L06
CK23R020 KC2023 09 25.99591303 13 22.41 -01 14 12.7 19.6 GVET007L01
CK23R020 KC2023 09 25.99865003 13 22.40 -01 14 13.2 20.1 GVET007L01
CK23R020 KC2023 09 26.00448703 13 22.35 -01 14 16.3 20.2 GVET007L01
CK23R020 C2023 09 27.50434303 12 56.666-01 25 20.37 20.06iXET007F51
CK23R020 C2023 09 27.51625203 12 56.430-01 25 25.84 19.91iXET007F51
CK23R020 C2023 09 27.52816803 12 56.210-01 25 31.00 20.16iXET007F51
CK23R020 C2023 09 27.54008703 12 55.985-01 25 36.26 19.87iXET007F51
CK23R020 KB2023 09 27.97474503 12 48.240-01 28 51.64 19.9 GXET007K74
CK23R020 KB2023 09 27.99542203 12 47.796-01 29 01.14 19.8 GXET007K74
CK23R020 0B2023 09 29.10495 03 12 26.75 -01 37 19.5 19.7 VZET007M49
CK23R020 0B2023 09 29.11526 03 12 26.53 -01 37 23.4 19.5 VZET007M49
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, F. Ludwig, M. Hartmann, B. Stecklum, C. Hogner. Measurer B.
Stecklum. 1.34-m f/3 Schmidt + CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
A77 Observatoire Chante-Perdrix, Dauban. Observer F. Kugel. 0.40-m f/2.8
reflector + CCD.
C10 Maisoncelles. Observer J.-F. Soulier. 0.30-m f/3.8 Newtonian reflector +
CCD.
E94 Possum Observatory, Gisborne. Observer J. Drummond. 0.41-m f/4.5
Newtonian + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, J.
Bulger, H. Gao, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, A. Schultz, I.
Smith. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Bulger, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk. 1.8-m Ritchey-
Chretien + CCD.
G02 KYSUCE Observatory, Kysucke Nove Mesto. Observer M. Urbanik. 0.40-m
f/6.8 Corrected Dall-Kirkham + CCD.
G96 Mt. Lemmon Survey. Observer J. K. Hogan. Measurers E. J. Christensen, D.
Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J.
K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K
CCD.
I81 Tarbatness Observatory, Portmahomack. Observer D. Buczynski. 0.35-m
f/6.0 Schmidt-Cassegrain + CCD.
I93 St Pardon de Conques. Observer F. Losse. 0.40-m f/3.7 reflector + CMO.
J04 ESA Optical Ground Station, Tenerife. Observers P. Ruiz, M. Micheli, F.
Ocana, L. Conversi. Measurers R. Kresken, M. Micheli, F. Ocana, A.
Knofel, M. Busch, E. Schwab. 1.0-m f/4.4 reflector + CCD.
J57 Centro Astronomico Alto Turia, Valencia. Observer A. Fornas. Measurers
A. Fornas, G. Fornas, E. Arce, V. Mas. 0.43-m f/6.8 Reflector 0.4m + CMO.
K74 Muensterschwarzach Observatory, Schwarzach. Observer C. Gerhard. 0.30-m
f/3.75 reflector + CMO.
K93 Sutherland-LCO C. Observer J. D. Armstrong. 1.0-m f/8 modified Ritchey-
Chretien + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, L. Poropat. Measurer
K. Korlevic. 1.0-m f/2.9 reflector + CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. 0.36m
Schmidt Cassegrain + CCD.
L27 29PREMOTE Observatory, Dauban. Observer J.-F. Soulier. 0.25-m f/3.5
Newtonian reflector + CCD.
L38 Gartensternwarte Schafsweide, Sehlde. Observer A. Opitz. 0.35-m f/5.2
Newton + CMO.
M45 Starhopper Observatory, Sfantu Gheorghe. Observer F. Ursache. 0.41-m
f/7.5 reflector + CMO.
M49 IAS Remote Observatory, Hakos. Observer D. Husar. 0.25-m f/4.6 reflector
+ CMO.
Q21 Southern Utsunomiya. Observer H. Nohara. 0.4-m f/3.8 Astrograph + CCD.
Q62 iTelescope Observatory, Siding Spring. Observer H. Sato. 0.51-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
T14 Canada-France-Hawaii Telescope, Maunakea. Observers R. Wainscoat, L.
Wells, T. Burdullis. Measurers R. Weryk, R. Wainscoat. 3.6-m Canada-
France-Hawaii Telescope + CCD.
W62 Comet Hunter Observatory2, New Ringgold. Observer J. Maikner. 0.30-m
f/3.8 Riccardi-Honders + CCD.
X03 Observatoire SADR, Poroto. Observers J. L. Virlichie, P. Traverse, H.
Roy. Measurer P. Traverse. 0.35-m f/4.7 Newtonian reflector + CCD.
Orbital elements:
C/2023 R2 (PANSTARRS)
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2024 Aug. 11.86782 TT Rudenko
q 0.9059381 (2000.0) P Q
z -0.0020988 Peri. 337.03886 -0.96214944 -0.26020356
+/-0.0019441 Node 189.09588 +0.24945370 -0.96058725
e 1.0019013 Incl. 30.82626 -0.10973285 +0.09780720
>From 120 observations 2023 Sept. 10-29, mean residual 0".4.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2023 09 03 03 15 33.4 +01 12 44 4.1940 4.6693 112.2 11.5 20.3
...
2023 09 18 03 15 03.0 -00 17 53 3.8494 4.5163 126.2 10.3 20.0
...
2023 09 26 03 13 22.4 -01 14 11 3.6808 4.4339 133.8 9.4 19.8
...
2023 10 02 03 11 26.6 -01 59 28 3.5631 4.3717 139.4 8.6 19.7
2023 10 03 03 11 04.0 -02 07 14 3.5442 4.3613 140.3 8.4 19.6
2023 10 04 03 10 40.3 -02 15 04 3.5257 4.3509 141.2 8.3 19.6
...
2023 10 10 03 07 58.4 -03 03 01 3.4194 4.2883 146.6 7.4 19.5
...
2023 10 18 03 03 30.9 -04 08 43 3.2927 4.2043 152.9 6.2 19.3
...
2023 11 02 02 52 55.5 -06 10 16 3.1063 4.0452 158.3 5.2 19.0
M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-T07
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