[Iaude] MPEC H22: COMET C/2024 G3 (ATLAS)
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Thu Apr 18 02:25:14 EDT 2024
M.P.E.C. 2024-H22 Issued 2024 April 18, 06:22 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 G3 (ATLAS)
T. Linder reports cometary activity of an asteroidal NEOCP candidate
(first reported by ATLAS Chile - W68 on Apr. 5 UT) in follow-up images obtained
on the same day at Cerro Tololo Observatory (807), noting a diffuse 4".5 coma
and a straight 1" tail at position angle 220-250 deg. Additional reports
of cometary features are as follows:
OC Date Reporter Coma Tail PA Exposures
X07 2024-04-06 H. Sato 5" 6x60s
W68 2024-04-08 A. Fitzsimmons 13" 6x110s
X07 2024-04-08 M. Mattiazzo 5"
M21 2024-04-11 A. Aletti 7" 21x300s
L09 2024-04-16 A. Hale 3" 7".5 300
Observations:
CK24G030* C2024 04 05.26369618 15 45.799-74 35 25.73 19.21oVEH022W68
CK24G030 C2024 04 05.28177018 15 44.969-74 35 36.74 18.82oVEH022W68
CK24G030 C2024 04 05.28591818 15 45.108-74 35 39.26 18.79oVEH022W68
CK24G030 C2024 04 05.29849218 15 44.585-74 35 47.04 18.89oVEH022W68
CK24G030 C2024 04 05.30553118 15 44.412-74 35 51.36 18.42oVEH022W68
CK24G030 KC2024 04 05.52584418 15 38.549-74 38 01.82 19.3 GVEH022474
CK24G030 KC2024 04 05.53018818 15 38.410-74 38 04.56 19.1 GVEH022474
CK24G030 KC2024 04 05.53452918 15 38.304-74 38 07.22 19.3 GVEH022474
CK24G030 KC2024 04 05.53887218 15 38.165-74 38 09.92 19.2 GVEH022474
CK24G030 KC2024 04 06.11908 18 15 21.12 -74 43 58.6 VEH022M21
CK24G030 KC2024 04 06.13238 18 15 20.62 -74 44 06.8 19.4 GVEH022M21
CK24G030 |C2024 04 06.20242918 15 18.850-74 44 47.60 19.0 GVEH022807
CK24G030 |C2024 04 06.20793018 15 18.680-74 44 50.90 19.1 GVEH022807
CK24G030 |C2024 04 06.21343018 15 18.500-74 44 54.30 19.2 GVEH022807
CK24G030 0C2024 04 06.31772 18 15 15.20 -74 45 57.9 VEH022X07
CK24G030 0C2024 04 06.32009 18 15 15.11 -74 45 59.5 19.1 GVEH022X07
CK24G030 KC2024 04 06.35519 18 15 13.46 -74 46 17.7 19.3 VqEH022R56
CK24G030 KC2024 04 06.37251 18 15 13.11 -74 46 28.7 19.8 VqEH022R56
CK24G030 KC2024 04 06.38987 18 15 13.14 -74 46 39.7 19.3 VqEH022R56
CK24G030 KC2024 04 06.68643318 15 03.185-74 49 39.32 19.2 GVEH022474
CK24G030 KC2024 04 06.69077418 15 03.010-74 49 41.92 19.4 GVEH022474
CK24G030 KC2024 04 06.69294618 15 02.945-74 49 43.21 19.3 GVEH022474
CK24G030 KC2024 04 06.69475618 15 02.866-74 49 44.44 19.3 GVEH022474
CK24G030 &C2024 04 07.14318 18 14 47.96 -74 54 13.2 19.7 VVEH022X07
CK24G030 &C2024 04 07.14816 18 14 47.86 -74 54 16.3 VEH022X07
CK24G030 &C2024 04 07.15262 18 14 47.66 -74 54 19.2 VEH022X07
CK24G030 KC2024 04 07.18730 18 14 46.22 -74 54 40.4 19.6 VqEH022I47
CK24G030 KC2024 04 07.22084 18 14 45.21 -74 55 01.1 19.3 VqEH022I47
CK24G030 KC2024 04 07.68950018 14 27.898-74 59 44.81 19.5 GVEH022474
CK24G030 KC2024 04 07.69166918 14 27.727-74 59 46.68 18.7 GVEH022474
CK24G030 KC2024 04 07.71131118 14 26.954-74 59 57.48 19.1 GVEH022474
CK24G030 KC2024 04 07.71348118 14 26.964-74 59 58.92 18.9 GVEH022474
CK24G030 KC2024 04 07.71565018 14 26.875-75 00 00.25 19.5 GVEH022474
CK24G030 C2024 04 08.21768518 14 07.687-75 05 04.31 18.74oVEH022W68
CK24G030 C2024 04 08.22324818 14 07.495-75 05 07.73 18.91oVEH022W68
CK24G030 C2024 04 08.23713818 14 06.936-75 05 16.01 18.64oVEH022W68
CK24G030 C2024 04 08.23851918 14 06.814-75 05 16.58 18.44oVEH022W68
CK24G030 C2024 04 08.25673418 14 06.182-75 05 28.32 18.90oVEH022W68
CK24G030 C2024 04 08.25811618 14 05.842-75 05 29.58 18.86oVEH022W68
CK24G030 &C2024 04 08.27392 18 14 05.37 -75 05 38.9 19.3 VVEH022X07
CK24G030 &C2024 04 08.27986 18 14 05.18 -75 05 42.2 VEH022X07
CK24G030 &C2024 04 08.28579 18 14 04.98 -75 05 46.0 VEH022X07
CK24G030 8C2024 04 08.35027 18 14 02.23 -75 06 26.1 19.1 GVEH022X07
CK24G030 8C2024 04 08.35316 18 14 01.90 -75 06 27.4 18.7 GVEH022X07
CK24G030 8C2024 04 08.35605 18 14 01.93 -75 06 29.5 18.7 GVEH022X07
CK24G030 KC2024 04 08.63540 18 13 50.69 -75 09 15.9 18.6 GVEH022323
CK24G030 KC2024 04 08.64133 18 13 50.76 -75 09 21.9 18.9 GVEH022323
CK24G030 KC2024 04 08.64994 18 13 50.18 -75 09 26.1 18.2 GVEH022323
CK24G030 KC2024 04 09.63402 18 13 06.63 -75 19 24.1 18.6 GVEH022323
CK24G030 KC2024 04 09.64662 18 13 05.65 -75 19 33.3 18.6 GVEH022323
CK24G030 KC2024 04 09.65852 18 13 05.35 -75 19 40.7 18.4 GVEH022323
CK24G030 C2024 04 09.96208 18 12 50.52 -75 22 47.0 18.6 RoEH022K95
CK24G030 C2024 04 09.96903 18 12 50.13 -75 22 51.7 18.8 RoEH022K95
CK24G030 C2024 04 10.22069 18 12 37.95 -75 25 25.6 18.9 GVEH022W79
CK24G030 C2024 04 10.22421 18 12 37.70 -75 25 27.4 18.9 GVEH022W79
CK24G030 C2024 04 10.22772 18 12 37.57 -75 25 29.7 18.8 GVEH022W79
CK24G030 KC2024 04 10.62976 18 12 16.49 -75 29 35.0 18.7 GVEH022323
CK24G030 KC2024 04 10.63866 18 12 16.20 -75 29 39.4 19.3 GVEH022323
CK24G030 KC2024 04 10.65078 18 12 15.72 -75 29 48.5 18.7 GVEH022323
CK24G030 KC2024 04 11.00829 18 11 57.04 -75 33 28.3 VEH022M21
CK24G030 KC2024 04 11.08094 18 11 52.69 -75 34 12.6 18.7 GVEH022M21
CK24G030 0B2024 04 11.09260 18 11 52.138-75 34 20.46 19.1 VZEH022M49
CK24G030 0B2024 04 11.09900 18 11 51.797-75 34 24.42 19.0 VZEH022M49
CK24G030 0B2024 04 11.10541 18 11 51.406-75 34 28.63 19.1 VZEH022M49
CK24G030 KC2024 04 11.12829 18 11 49.98 -75 34 42.2 VEH022M21
CK24G030 KC2024 04 11.62743 18 11 22.65 -75 39 47.7 19.3 GVEH022323
CK24G030 KC2024 04 11.64447 18 11 21.61 -75 39 56.8 19.0 GVEH022323
CK24G030 KC2024 04 11.66145 18 11 20.60 -75 40 07.6 18.5 GVEH022323
CK24G030 dC2024 04 11.76004618 11 14.535-75 41 10.41 18.8 GVEH022Q62
CK24G030 dC2024 04 11.76275518 11 14.252-75 41 12.44 18.9 GVEH022Q62
CK24G030 dC2024 04 11.76531318 11 14.125-75 41 14.02 18.9 GVEH022Q62
CK24G030 dC2024 04 11.76795118 11 13.859-75 41 15.80 18.7 GVEH022Q62
CK24G030 C2024 04 11.98324 18 11 01.62 -75 43 27.3 19.2 GVEH022L09
CK24G030 C2024 04 11.98675 18 11 01.42 -75 43 29.5 19.2 GVEH022L09
CK24G030 C2024 04 11.99026 18 11 01.20 -75 43 31.6 19.3 GVEH022L09
CK24G030 KC2024 04 13.62409 18 09 16.34 -76 00 16.0 18.4 GVEH022323
CK24G030 KC2024 04 13.63597 18 09 15.30 -76 00 25.0 18.5 GVEH022323
CK24G030 KC2024 04 13.65296 18 09 14.54 -76 00 34.8 17.7 GVEH022323
CK24G030 C2024 04 16.03161 18 06 12.36 -76 25 06.3 18.7 GVEH022L09
CK24G030 C2024 04 16.03512 18 06 12.07 -76 25 08.7 18.5 GVEH022L09
CK24G030 C2024 04 16.03864 18 06 11.83 -76 25 10.7 18.7 GVEH022L09
CK24G030 2C2024 04 16.55635 18 05 27.46 -76 30 29.2 19.1 GXEH022Q62
CK24G030 2C2024 04 16.56238 18 05 27.08 -76 30 33.3 19.0 GXEH022Q62
CK24G030 2C2024 04 16.56837 18 05 26.43 -76 30 36.9 18.8 GXEH022Q62
CK24G030 0B2024 04 17.12697 18 04 35.916-76 36 23.08 19.0 VZEH022M49
CK24G030 0B2024 04 17.13124 18 04 35.482-76 36 25.60 18.9 VZEH022M49
CK24G030 0B2024 04 17.13550 18 04 35.198-76 36 28.48 19.2 VZEH022M49
Observer details:
323 Perth Observatory, Bickley. Observer A. Pearce. 0.35-m f/6 R-COP
reflector + CCD, 0.35-m f/6 reflector + CCD.
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 0.6-m f/6.3 Reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.8 Ritchey-Chretien + CCD.
I47 Pierre Auger Observatory, Malargue. Observer M. Masek. 0.3-m f/6.8
reflector + CCD.
K95 MASTER-SAAO Observatory, Sutherland. Observers Y. Kechin, V. Lipunov, E.
Gorbovskoy, D. Buckley, P. Balanutsa, V. Kornilov, A. Kuznetsov, N.
Tiurina, O. Gress, D. Zimnukhov. 0.4-m f/2.5 reflector CCD.
L09 Sutherland-LCO Aqawan A #1. Observer A. Hale. 0.35-m f/3 Cassegrain +
CCD.
M21 Schiaparelli Southern Observatory, Hakos. Observers A. Aletti, F.
Bellini, L. Buzzi, G. Galli. Measurers L. Buzzi, A. Aletti. 0.36-m f/8.4
reflector + CCD.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.5 reflector + CMO.
Q62 iTelescope Observatory, Siding Spring. Observers F. D. Romanov, M.
Urbanik. 0.43-m f/6.8 reflector + CCD, 0.51-m f/6.8 reflector + CCD.
R56 Scott Street Observatory, Lake Tekapo. Observer A. Vilquin Barrajon.
0.36-m f/2.2 reflector + CCD.
W68 ATLAS Chile, Rio Hurtado. Observers L. Denneau, R. Siverd, J. Tonry, H.
Weiland. Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, J. Robinson,
R. Siverd, J. Tonry, H. Weiland. 0.5-m Reflector + CCD.
W79 Cerro Tololo-LCO Aqawan B #1. Observer A. Hale. 0.35-m f/3 Cassegrain +
CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado. Observers H. Sato, K. Yoshimoto,
M. Mattiazzo. 0.51-m f/6.8 astrograph + CCD, 0.36-m f/7.2 corrected Dall-
Kirkham + CMO, 0.36-m f/7.2 corrected Dall-Kirkham +CMOS + CCD, pe: T72
3411 mm f/6.8 PlaneWave L-500 + FLI ML16200 + CCD.
Orbital elements:
C/2024 G3 (ATLAS)
Epoch 2025 Jan. 5.0 TT = JDT 2460680.5
T 2025 Jan. 13.44359 TT Rudenko
q 0.0935656 (2000.0) P Q
z +0.0000120 Peri. 108.13072 -0.04066614 +0.81516642
+/-0.0000001 Node 220.35582 +0.14750825 +0.57683743
e 0.9999989 Incl. 116.83545 +0.98822446 -0.05255750
>From 87 observations 2024 Apr. 5-17, mean residual 0".5.
Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2024 03 19 18 15 06.1 -71 55 17 4.7776 4.8438 87.9 11.9 19.2
...
2024 04 03 18 16 35.3 -74 13 04 4.4447 4.6781 97.3 12.2 18.9
...
2024 04 11 18 11 57.0 -75 33 22 4.2719 4.5886 102.1 12.3 18.8
...
2024 04 17 18 04 47.5 -76 35 02 4.1461 4.5209 105.6 12.3 18.6
2024 04 18 18 03 13.4 -76 45 19 4.1255 4.5096 106.2 12.3 18.6
2024 04 19 18 01 32.1 -76 55 34 4.1050 4.4982 106.7 12.3 18.6
...
2024 04 25 17 48 35.9 -77 55 53 3.9847 4.4299 109.9 12.3 18.5
...
2024 05 03 17 22 20.2 -79 08 45 3.8322 4.3379 113.8 12.3 18.3
...
2024 05 18 16 00 48.7 -80 23 16 3.5760 4.1628 119.1 12.3 18.0
M. P. C. Staff (C) Copyright 2024 MPC M.P.E.C. 2024-H22
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