MPEC 2023-D10 : COMET P/2023 B3 (PANSTARRS)
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M.P.E.C. 2023-D10 Issued 2023 February 17, 04:40 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@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 COMET P/2023 B3 (PANSTARRS) R. Weryk reports the discovery of a comet in survey images taken on Jan. 23 UT by Pan-STARRS 2 (F52). He confirmed and described the cometary activity in follow-up images taken on Jan. 24 UT by Canada-France-Hawaii Telescope (T14) in three 60-second exposures, noting a very condensed 0".4 coma and a broad 6" tail at position angle 260 - 320 deg. Additional reports of cometary features are as follows: OC Date Reporter Coma Tail PA Exposures Q62 2023-01-26 H. Sato 8" 12x120s 246 2023-02-14 M. Tichy 3" 12" 180 Observations: PK23B030* C2023 01 23.42579609 27 26.857+11 22 26.02 21.14wUED010F52 PK23B030 C2023 01 23.43791309 27 26.471+11 22 28.57 21.38wUED010F52 PK23B030 C2023 01 23.45009509 27 26.076+11 22 31.07 20.90wUED010F52 PK23B030 C2023 01 23.46233109 27 25.664+11 22 33.59 21.02wUED010F52 PK23B030 2C2023 01 23.91811509 27 11.40 +11 24 10.1 20.3 GVED010K91 PK23B030 2C2023 01 23.92119409 27 11.30 +11 24 10.8 20.5 GVED010K91 PK23B030 2C2023 01 23.92429409 27 11.19 +11 24 11.4 20.6 GVED010K91 PK23B030 2C2023 01 23.92738309 27 11.11 +11 24 11.9 20.5 GVED010K91 PK23B030 3C2023 01 24.56990109 26 50.683+11 26 24.11 21.41GVED010T14 PK23B030 3C2023 01 24.57111409 26 50.645+11 26 24.37 21.39GVED010T14 PK23B030 3C2023 01 24.57232309 26 50.605+11 26 24.64 21.36GVED010T14 PK23B030 KC2023 01 25.43764 09 26 23.03 +11 29 26.3 VED010691 PK23B030 KC2023 01 25.44491 09 26 22.79 +11 29 28.0 VED010691 PK23B030 KC2023 01 25.45218 09 26 22.53 +11 29 29.7 VED010691 PK23B030 1C2023 01 26.61157 09 25 45.28 +11 33 39.4 VED010Q62 PK23B030 1C2023 01 26.62070 09 25 44.95 +11 33 41.5 20.0 GVED010Q62 PK23B030 2C2023 01 26.99796809 25 32.74 +11 35 02.6 20.7 GVED010K93 PK23B030 2C2023 01 27.00108909 25 32.61 +11 35 03.7 20.9 GVED010K93 PK23B030 2C2023 01 27.00416609 25 32.48 +11 35 04.1 20.2 GVED010K93 PK23B030 2C2023 01 27.00724509 25 32.39 +11 35 04.6 20.3 GVED010K93 PK23B030 KC2023 01 30.17820 09 23 47.79 +11 46 37.8 20.4 VvED010A77 PK23B030 KC2023 01 30.19475 09 23 47.24 +11 46 40.7 20.3 VvED010A77 PK23B030 IC2023 01 30.99596609 23 20.48 +11 49 38.9 21.0 GVED010L01 PK23B030 pC2023 01 31.00841109 23 20.10 +11 49 41.1 21.1 GVED010L01 PK23B030 KC2023 01 31.01543909 23 19.91 +11 49 42.5 20.7 GVED010L01 PK23B030 KC2023 01 31.01855209 23 19.79 +11 49 43.9 20.7 GVED010L01 PK23B030 KC2023 01 31.91617209 22 49.73 +11 53 05.0 20.6 GVED010587 PK23B030 KC2023 01 31.91757309 22 49.68 +11 53 05.3 20.8 GVED010587 PK23B030 KC2023 02 02.35936 09 22 00.87 +11 58 32.1 20.3 RoED010291 PK23B030 KC2023 02 02.37669 09 22 00.28 +11 58 36.2 20.1 RoED010291 PK23B030 KC2023 02 02.39402 09 21 59.67 +11 58 40.1 19.9 RoED010291 PK23B030 KC2023 02 09.29455 09 18 04.28 +12 25 10.5 oED010291 PK23B030 KC2023 02 09.31324 09 18 03.64 +12 25 15.4 oED010291 PK23B030 KC2023 02 09.33194 09 18 03.01 +12 25 19.2 20.0 RoED010291 PK23B030 C2023 02 10.29036309 17 30.404+12 29 02.40 20.18GVED010V00 PK23B030 C2023 02 10.29536009 17 30.217+12 29 03.48 20.35GVED010V00 PK23B030 C2023 02 10.30032509 17 30.052+12 29 04.63 20.16GVED010V00 PK23B030 C2023 02 10.30528809 17 29.890+12 29 06.07 20.44GVED010V00 PK23B030 1C2023 02 11.25834509 16 57.533+12 32 47.49 LED010658 PK23B030 1C2023 02 11.26281309 16 57.376+12 32 48.59 LED010658 PK23B030 1C2023 02 11.26728009 16 57.221+12 32 49.53 LED010658 PK23B030 1C2023 02 11.27173609 16 57.077+12 32 50.54 LED010658 PK23B030 1C2023 02 11.27620409 16 56.928+12 32 51.67 LED010658 PK23B030 IC2023 02 11.85683209 16 37.21 +12 35 07.1 19.3 GXED010595 PK23B030 IC2023 02 11.86959609 16 36.76 +12 35 10.4 XED010595 PK23B030 1C2023 02 12.25804709 16 23.588+12 36 40.86 19.87GVED010G96 PK23B030 1C2023 02 12.26312609 16 23.426+12 36 42.08 19.88GVED010G96 PK23B030 1C2023 02 12.26820809 16 23.236+12 36 43.38 20.00GVED010G96 PK23B030 1C2023 02 12.27328809 16 23.113+12 36 45.79 19.65GVED010G96 PK23B030 KC2023 02 14.15679709 15 19.69 +12 44 02.5 19.6 GXED010W62 PK23B030 KC2023 02 14.16383609 15 19.45 +12 44 04.4 19.6 GXED010W62 PK23B030 KC2023 02 14.17087609 15 19.21 +12 44 05.8 19.6 GXED010W62 PK23B030 1C2023 02 14.83153409 14 57.120+12 46 38.90 qED010246 PK23B030 1C2023 02 14.83194809 14 57.100+12 46 39.70 qED010246 PK23B030 1C2023 02 14.83263209 14 57.090+12 46 38.80 qED010246 PK23B030 1C2023 02 14.83297409 14 57.120+12 46 39.20 qED010246 PK23B030 1C2023 02 14.83365709 14 56.990+12 46 39.20 qED010246 PK23B030 1C2023 02 15.81867609 14 24.260+12 50 28.00 qED010246 PK23B030 1C2023 02 15.81935909 14 24.280+12 50 27.70 qED010246 PK23B030 1C2023 02 15.81970109 14 24.210+12 50 28.10 qED010246 PK23B030 1C2023 02 15.82072609 14 24.250+12 50 28.30 qED010246 PK23B030 KC2023 02 15.82971 09 14 23.99 +12 50 30.3 19.8 GVED010C82 PK23B030 KC2023 02 15.87382 09 14 22.41 +12 50 40.6 19.7 GVED010C82 Observer details: 246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha, M. Janda, M. Honkova. Measurer M. Tichy. 1.06-m f/2.7 Reflector + 2048x2048 CCD. 291 LPL/Spacewatch II. Observers J. V. Scotti, R. A. Mastaler. 1.8-m f/2.7 reflector + CCD. 587 Sormano. Observers P. Sicoli, A. Testa. Measurer P. Sicoli. 0.5-m f/6.8 reflector + CCD. 595 Farra d'Isonzo. Observers U. Montanar, E. Pettarin. Measurer E. Pettarin. 0.61-m f/4.5 reflector + CCD. 658 National Research Council of Canada. Observers D. D. Balam, C. E. Spratt. Measurers D. D. Balam, D. W. E. Green. 1.82-m Reflector + CCD. 691 Steward Observatory, Kitt Peak-Spacewatch. Observer M. T. Read. 0.9-m f/3 reflector + CCD. A77 Observatoire Chante-Perdrix, Dauban. Observer F. Kugel. 0.4-m f/2.8 reflector + CCD. C82 Osservatorio Astronomico Nastro Verde, Sorrento. Observer N. Ruocco. 0.35-m f/6.3 0.35 m f/6.3 Schmidt-Cassegrain + CCD. F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, I. Smith. Measurers K. Chambers, S. Chastel, T. de Boer, J. Fairlamb, H. Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD. G96 Mt. Lemmon Survey. Observer A. Serrano. 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. K91 Sutherland-LCO A. Observer J. D. Armstrong. 1.0-m f/8 modified Ritchey- Chretien + CCD. K93 Sutherland-LCO C. Observers J. D. Armstrong, A. M. Tokuoka. PCCP P21Ddk2. L01 Visnjan Observatory, Tican. Observers K. Korlevic, L. Poropat. Measurer K. Korlevic. 1.0-m f/2.9 reflector + 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, H. Januszewski, T. Burdullis. Measurers R. Weryk, R. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD. V00 Kitt Peak-Bok. Observer H. Groeller. Measurers M. J. Brucker, E. J. Christensen, C. E. Woodward, 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, R. S. McMillan, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 2.25-m reflector + 4x4K mosaic CCD. W62 Comet Hunter Observatory2, New Ringgold. Observer J. Maikner. 0.30-m f/3.8 Riccardi-Honders + CCD. Orbital elements: P/2023 B3 (PANSTARRS) Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 T 2020 Aug. 28.72575 TT Rudenko q 3.9576714 (2000.0) P Q n 0.10184932 Peri. 238.71207 +0.83717417 -0.54239824 a 4.5411304 Node 153.93467 +0.54026138 +0.80007251 e 0.1284832 Incl. 9.20784 +0.08518836 +0.25629694 P 9.68 From 63 observations 2023 Jan. 23-Feb. 15, mean residual 0".4. Ephemeris: Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2023 01 18 09 30 10.2 +11 04 30 3.6890 4.6037 155.7 5.0 20.0 ... 2023 02 02 09 22 13.1 +11 57 11 3.6400 4.6189 172.6 1.6 20.0 ... 2023 02 10 09 17 40.3 +12 27 56 3.6424 4.6270 175.9 0.9 20.0 ... 2023 02 16 09 14 18.2 +12 51 11 3.6573 4.6330 169.9 2.1 20.0 2023 02 17 09 13 45.3 +12 55 02 3.6609 4.6340 168.8 2.4 20.0 2023 02 18 09 13 12.5 +12 58 52 3.6648 4.6350 167.7 2.6 20.0 ... 2023 02 24 09 10 03.5 +13 21 29 3.6946 4.6410 160.9 4.0 20.0 ... 2023 03 04 09 06 17.7 +13 49 53 3.7506 4.6490 152.0 5.8 20.0 ... 2023 03 19 09 01 06.3 +14 35 06 3.9001 4.6639 135.6 8.6 20.1 M. P. C. Staff (C) Copyright 2023 MPC M.P.E.C. 2023-D10


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