[Iaude] MPEC J123: COMET C/2024 G4 (PANSTARRS)
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Tue May 7 22:00:51 EDT 2024
M.P.E.C. 2024-J123 Issued 2024 May 8, 01:58 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/2024 G4 (PANSTARRS)
R. Weryk reports the discovery of a comet in four 45-second w-band survey
images taken by Pan-STARRS 2 (F52) on Apr. 10 UT, noting a diffuse 1" coma and
a straight 4" tail at position angle 225 deg. Prediscovery positions were
reported back to Jan. 2021. Additional reports of cometary features are as
follows:
OC Date Reporter Coma Tail PA Exposures
U94 2024-04-17 H. Sato 8" 10x120s
204 2024-04-19 A. Aletti 7" 10" 180-240 297x30s
A71 2024-04-29 M. Jaeger 10" 25x70s
W62 2024-05-02 J. Maikner 6" 54x120s
T14 2024-05-04 R. Weryk 0".7 4" 200-280 3x60s
Observations:
CK24G040 5C2021 01 12.64890612 16 24.69 +13 17 39.0 23.8 rWEJ123T14
CK24G040 C2022 02 09.48975212 48 15.801+14 47 06.69 22.73GVEJ123F52
CK24G040 C2022 02 09.50127312 48 15.732+14 47 08.14 21.72GVEJ123F52
CK24G040 C2022 03 02.41055012 45 05.872+15 47 50.60 23.29GVEJ123F52
CK24G040 C2022 03 02.43882112 45 05.585+15 47 55.33 22.42GVEJ123F52
CK24G040 C2022 03 02.45288112 45 05.410+15 47 57.67 22.46GVEJ123F52
CK24G040 C2022 03 06.55850812 44 15.026+15 59 55.00 22.44GVEJ123F52
CK24G040 C2022 03 06.57078012 44 14.838+15 59 57.00 22.46GVEJ123F52
CK24G040 C2022 03 06.58303212 44 14.720+15 59 59.22 22.19GVEJ123F52
CK24G040 C2022 03 06.59520912 44 14.580+16 00 01.28 23.21GVEJ123F52
CK24G040 KC2022 03 08.59972112 43 48.727+16 05 48.25 20.98GVEJ123F52
CK24G040 KC2022 03 10.36542112 43 25.402+16 10 50.58 22.36GVEJ123F52
CK24G040 C2022 03 28.38285712 39 02.749+16 58 42.46 22.96GVEJ123F52
CK24G040 C2022 03 28.39631112 39 02.555+16 58 44.70 22.36GVEJ123F52
CK24G040 C2022 04 08.30758612 36 14.146+17 22 55.92 22.43GVEJ123F52
CK24G040 C2022 04 08.32099212 36 13.933+17 22 57.14 22.46GVEJ123F52
CK24G040 C2023 03 13.59968513 33 24.024+16 58 20.72 21.34GVEJ123F51
CK24G040 C2023 03 30.52469713 29 16.333+17 57 44.44 20.72GVEJ123F52
CK24G040 C2023 03 30.53754113 29 16.142+17 57 47.31 22.00GVEJ123F52
CK24G040 C2023 04 16.54690513 24 22.185+18 45 58.98 21.07GVEJ123F52
CK24G040 C2023 04 16.56080913 24 21.984+18 46 00.64 21.28GVEJ123F52
CK24G040 C2023 04 24.32110613 22 05.760+19 02 36.36 21.94GVEJ123F52
CK24G040 C2023 04 24.33320213 22 05.529+19 02 37.91 20.84GVEJ123F52
CK24G040 1C2024 03 19.35618214 52 56.446+17 00 58.07 21.07GVEJ123G96
CK24G040 1C2024 03 19.36135514 52 56.370+17 00 59.98 20.54GVEJ123G96
CK24G040 1C2024 03 19.36651214 52 56.305+17 01 01.92 20.93GVEJ123G96
CK24G040 1C2024 03 19.37166814 52 56.312+17 01 02.96 20.63GVEJ123G96
CK24G040 KC2024 03 21.49576314 52 39.703+17 11 20.59 20.45GVEJ123F52
CK24G040 C2024 03 31.57696414 50 52.685+17 58 49.66 20.94GVEJ123F52
CK24G040 C2024 04 06.56524414 49 29.029+18 25 21.28 21.18GVEJ123F51
CK24G040 C2024 04 06.57622414 49 28.859+18 25 23.91 21.13GVEJ123F51
CK24G040 C2024 04 06.58723214 49 28.666+18 25 26.55 20.88GVEJ123F51
CK24G040 C2024 04 06.59822714 49 28.514+18 25 29.10 20.03GVEJ123F51
CK24G040* C2024 04 10.54008214 48 26.309+18 41 58.56 21.12wXEJ123F52
CK24G040 C2024 04 10.55254314 48 26.082+18 42 01.94 21.00wXEJ123F52
CK24G040 C2024 04 10.56509114 48 25.923+18 42 04.82 21.17wXEJ123F52
CK24G040 C2024 04 10.57765414 48 25.671+18 42 08.03 20.93wXEJ123F52
CK24G040 C2024 04 11.44140814 48 11.354+18 45 37.22 21.41GVEJ123V06
CK24G040 C2024 04 11.44848814 48 11.239+18 45 38.74 20.91GVEJ123V06
CK24G040 C2024 04 11.45447314 48 11.156+18 45 40.50 21.27GVEJ123V06
CK24G040 C2024 04 11.46106614 48 11.012+18 45 41.94 20.88GVEJ123V06
CK24G040 KC2024 04 13.95161014 47 28.57 +18 55 29.6 20.6 GVEJ123L06
CK24G040 KC2024 04 13.96207514 47 28.37 +18 55 32.1 20.5 GVEJ123L06
CK24G040 KC2024 04 13.97079614 47 28.21 +18 55 34.3 20.8 GVEJ123L06
CK24G040 KC2024 04 15.03411914 47 09.51 +18 59 38.2 20.6 GVEJ123L01
CK24G040 KC2024 04 15.03917414 47 09.39 +18 59 38.3 21.0 GVEJ123L01
CK24G040 KC2024 04 15.05157514 47 09.13 +18 59 41.6 21.0 GVEJ123L01
CK24G040 KB2024 04 16.14762 14 46 49.62 +19 03 48.9 21.7 VqEJ123Y66
CK24G040 KB2024 04 16.15051 14 46 49.59 +19 03 49.4 21.9 VqEJ123Y66
CK24G040 KB2024 04 16.15341 14 46 49.55 +19 03 50.2 22.0 VqEJ123Y66
CK24G040 0C2024 04 17.46015 14 46 25.80 +19 08 36.5 VEJ123U94
CK24G040 0C2024 04 17.46747 14 46 25.64 +19 08 38.6 20.3 GVEJ123U94
CK24G040 KC2024 04 19.05611 14 45 56.27 +19 14 17.6 20.0 GVEJ123204
CK24G040 KC2024 04 19.11485 14 45 55.17 +19 14 29.9 19.8 GVEJ123204
CK24G040 KB2024 04 19.94245 14 45 39.72 +19 17 20.3 20.5 GVEJ123204
CK24G040 KB2024 04 19.99520 14 45 38.67 +19 17 31.2 VEJ123204
CK24G040 KC2024 04 20.48271 14 45 29.38 +19 19 11.9 20.1 RVEJ123291
CK24G040 KC2024 04 20.49689 14 45 29.16 +19 19 15.0 20.4 RVEJ123291
CK24G040 KB2024 04 26.02280 14 43 42.06 +19 36 46.2 20.4 VqEJ123Y66
CK24G040 KB2024 04 26.02627 14 43 41.99 +19 36 46.3 20.4 VqEJ123Y66
CK24G040 KB2024 04 26.02940 14 43 41.92 +19 36 46.2 20.4 VqEJ123Y66
CK24G040 KB2024 04 27.00128 14 43 22.65 +19 39 35.5 qEJ123Y66
CK24G040 KB2024 04 27.00510 14 43 22.50 +19 39 36.5 qEJ123Y66
CK24G040 KB2024 04 27.00649 14 43 22.54 +19 39 36.9 qEJ123Y66
CK24G040 KB2024 04 27.00788 14 43 22.44 +19 39 36.9 qEJ123Y66
CK24G040 KB2024 04 27.00927 14 43 22.44 +19 39 37.4 qEJ123Y66
CK24G040 KC2024 04 27.83412 14 43 06.04 +19 41 55.7 20.1 GVEJ123C82
CK24G040 KC2024 04 27.84821 14 43 05.64 +19 42 00.3 19.8 GVEJ123C82
CK24G040 KC2024 04 29.35358 14 42 35.44 +19 46 04.5 VEJ123691
CK24G040 KC2024 04 29.36823 14 42 35.13 +19 46 07.3 20.3 RVEJ123691
CK24G040 KC2024 04 29.38288 14 42 34.81 +19 46 09.4 20.3 RVEJ123691
CK24G040 KC2024 04 29.89448 14 42 24.60 +19 47 30.2 20.9 GVEJ123A71
CK24G040 KC2024 04 29.90202 14 42 24.41 +19 47 30.8 21.2 GVEJ123A71
CK24G040 KC2024 05 02.09144 14 41 40.11 +19 53 00.2 19.8 GXEJ123W62
CK24G040 KC2024 05 02.11671 14 41 39.59 +19 53 04.0 19.8 GXEJ123W62
CK24G040 KC2024 05 02.14618 14 41 38.98 +19 53 08.2 19.8 GXEJ123W62
CK24G040 KB2024 05 03.12680 14 41 18.98 +19 55 26.8 20.9 VqEJ123Y66
CK24G040 KB2024 05 03.12923 14 41 18.92 +19 55 27.3 20.5 VqEJ123Y66
CK24G040 KB2024 05 03.13166 14 41 18.89 +19 55 27.3 20.8 VqEJ123Y66
CK24G040 KB2024 05 03.13409 14 41 18.83 +19 55 27.7 20.6 VqEJ123Y66
CK24G040 8C2024 05 04.02059 14 41 00.75 +19 57 28.2 20.3 GVEJ123094
CK24G040 8C2024 05 04.02762 14 41 00.62 +19 57 28.9 20.6 GVEJ123094
CK24G040 8C2024 05 04.02763 14 41 00.63 +19 57 28.3 20.8 GVEJ123094
CK24G040 8C2024 05 04.03465 14 41 00.47 +19 57 29.9 20.7 GVEJ123094
CK24G040 3C2024 05 04.26210614 40 55.986+19 58 00.58 20.63GVEJ123T14
CK24G040 3C2024 05 04.26333214 40 55.963+19 58 00.68 20.75GVEJ123T14
CK24G040 3C2024 05 04.26454014 40 55.934+19 58 00.92 20.59GVEJ123T14
CK24G040 !C2024 05 04.33206 14 40 54.44 +19 58 09.4 20.0 GVEJ123673
CK24G040 !C2024 05 04.33801 14 40 54.32 +19 58 09.9 VEJ123673
CK24G040 KB2024 05 06.00180 14 40 20.51 +20 01 41.8 qEJ123Y66
CK24G040 KB2024 05 06.00458 14 40 20.44 +20 01 42.3 qEJ123Y66
CK24G040 KB2024 05 06.00701 14 40 20.40 +20 01 42.7 qEJ123Y66
CK24G040 KB2024 05 06.00910 14 40 20.35 +20 01 42.8 qEJ123Y66
Observer details:
094 Crimea-Simeiz. Observer A. Novichonok. 1.0-m f/13 reflector + CCD.
204 Schiaparelli Observatory. Observers A. Aletti, L. Buzzi. Measurers A.
Aletti, M. Auteri, L. Buzzi. 0.36-m f/7.5 reflector + CCD, 0.84-m f/3.5
reflector + CMO.
291 LPL/Spacewatch II. Observer A. F. Tubbiolo. 1.8-m f/2.7 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Pittichova. 1.0-m
f/15 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch. Observer J. V. Scotti. 0.9-m
f/3 reflector + CCD.
A71 Stixendorf. Observers M. Jaeger, E. Prosperi, S. Prosperi. Measurer M.
Jaeger. 0.35-m f/4.2 reflector + CCD.
C82 Osservatorio Astronomico Nastro Verde, Sorrento. Observer N. Ruocco.
0.35-m f/6.3 Schmidt-Cassegrain + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, 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.
F52 Pan-STARRS 2, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, 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 G. J. Leonard. Measurers T. Beuden, V. F.
Carvajal, 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, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector +
10K CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea. Observer G. Ventre. Measurer
P. Sicoli. 0.36m Schmidt Cassegrain + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea. Observers A. Boselli, R.
Wainscoat, A. Acohido, T. Burdullis. Measurers S. Deen, R. Weryk, R.
Wainscoat. 3.58-m Canada-France-Hawaii Telescope + CCD, 3.6-m f/4.1
reflector + CCD.
U94 iTelescope Observatory, Beryl Junction. Observer H. Sato. 0.43-m f/6.8
astrograph + CCD + f/4.5 focal reducer.
V06 Catalina Sky Survey-Kuiper. Observers V. F. Carvajal, G. J. Leonard.
Measurers T. Beuden, V. F. Carvajal, 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, F. C. Shelly, K. W.
Wierzchos. 1.55-m reflector + 1K CCD.
W62 Comet Hunter Observatory2, New Ringgold. Observer J. Maikner. 0.30-m
f/3.8 Riccardi-Honders + CCD.
Y66 Two-Meter Twin Telescope, TTT2, Teide. Observer M. R. Alarcon.
Measurer M. Serra-Ricart. 0.80-m f/4.38 reflector + CMO.
Orbital elements:
C/2024 G4 (PANSTARRS)
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5
T 2026 Mar. 21.79457 TT Rudenko
q 4.8989229 (2000.0) P Q
z +0.0003135 Peri. 131.43244 +0.30436674 +0.91986876
+/-0.0000081 Node 153.00799 -0.95199426 +0.28484017
e 0.9984644 Incl. 33.02978 +0.03267743 -0.26964337
>From 93 observations 2021 Jan. 12-2024 May 6, mean residual 0".4.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2024 04 08 14 49 07.0 +18 31 27 6.3938 7.2289 144.1 4.7 20.6
...
2024 04 23 14 44 41.3 +19 27 29 6.2928 7.1522 146.4 4.5 20.5
...
2024 05 01 14 42 02.2 +19 50 20 6.2622 7.1114 145.0 4.7 20.5
...
2024 05 07 14 40 00.2 +20 03 41 6.2498 7.0810 142.9 4.9 20.5
2024 05 08 14 39 39.8 +20 05 34 6.2486 7.0759 142.5 5.0 20.5
2024 05 09 14 39 19.5 +20 07 21 6.2476 7.0708 142.0 5.0 20.5
...
2024 05 15 14 37 19.6 +20 16 00 6.2466 7.0405 139.0 5.4 20.5
...
2024 05 23 14 34 48.0 +20 21 50 6.2577 7.0002 134.1 6.0 20.4
...
2024 06 07 14 30 49.4 +20 15 21 6.3126 6.9250 123.5 7.0 20.4
M. P. C. Staff (C) Copyright 2024 MPC M.P.E.C. 2024-J123
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