[Iaude] MPEC K118: COMET C/2024 J3 (ATLAS)

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Wed May 29 00:40:28 EDT 2024


M.P.E.C. 2024-K118                                 Issued 2024 May 29, 04:38 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 J3 (ATLAS)                             

     J. Robinson reports the discovery of a comet in four 30-second survey
images taken by ATLAS Chile (W68) on May 6 UT, noting a condensed 9".6 coma.
Additional reports of cometary features are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures

I47  2024-05-09  M. Masek          11"
M49  2024-05-11  D. Husar           6"       10"    200-260
Q62  2024-05-12  H. Sato            8"                             6x120s
Q62  2024-05-17  T. Prystavski     12"       12"    216            7x180s
Y05  2024-05-19  C. Jacques        15"              223            60x60s

Observations:
    CK24J030* C2024 05 06.26497319 28 46.968-42 55 22.40         17.60oVEK118W68
    CK24J030  C2024 05 06.26678819 28 47.030-42 55 23.30         18.64oVEK118W68
    CK24J030  C2024 05 06.26964219 28 46.872-42 55 23.81         17.16oVEK118W68
    CK24J030  C2024 05 06.27477319 28 46.781-42 55 23.99         18.04oVEK118W68
    CK24J030  C2024 05 06.78386 19 28 39.46 -42 55 34.6          18.6 GVEK118Q58
    CK24J030  C2024 05 06.78737 19 28 39.42 -42 55 34.6          18.4 GVEK118Q58
    CK24J030  C2024 05 06.79089 19 28 39.31 -42 55 35.6          18.4 GVEK118Q58
    CK24J030 KC2024 05 07.57507 19 28 27.70 -42 55 51.9          18.3 GXEK118R56
    CK24J030 KC2024 05 07.59932 19 28 27.35 -42 55 52.6          18.7 GXEK118R56
    CK24J030 KC2024 05 07.62358 19 28 26.98 -42 55 53.4          18.2 GXEK118R56
    CK24J030 KC2024 05 09.21495 19 28 01.91 -42 56 29.1          18.6 VqEK118I47
    CK24J030 KC2024 05 09.34033 19 27 59.79 -42 56 32.5          18.4 VqEK118I47
    CK24J030 *C2024 05 10.09032 19 27 47.19 -42 56 48.2          18.2 RoEK118K95
    CK24J030  C2024 05 10.10420 19 27 47.05 -42 56 48.1          17.7 RoEK118K95
    CK24J030 KC2024 05 10.16593 19 27 46.09 -42 56 50.1          18.4 VqEK118I47
    CK24J030  C2024 05 10.17103 19 27 45.85 -42 56 49.9          18.5 GVEK118L09
    CK24J030  C2024 05 10.17454 19 27 45.82 -42 56 50.0          18.5 GVEK118L09
    CK24J030  C2024 05 10.17805 19 27 45.79 -42 56 50.0          18.3 GVEK118L09
    CK24J030  C2024 05 10.19443519 27 45.530-42 56 50.35         18.68oVEK118W68
    CK24J030  C2024 05 10.19775019 27 45.497-42 56 50.71         18.14oVEK118W68
    CK24J030  C2024 05 10.20097019 27 45.550-42 56 51.65         18.57oVEK118W68
    CK24J030 KC2024 05 10.22225 19 27 45.08 -42 56 51.8          18.4 VqEK118I47
    CK24J030  C2024 05 10.22628019 27 45.108-42 56 50.57         18.48oVEK118W68
    CK24J030 0B2024 05 11.07090 19 27 30.401-42 57 09.36         18.5 VZEK118M49
    CK24J030 0B2024 05 11.08015 19 27 30.245-42 57 09.54         18.7 VZEK118M49
    CK24J030  C2024 05 11.97663519 27 14.191-42 57 28.19         18.82cVEK118M22
    CK24J030  C2024 05 11.99821019 27 13.793-42 57 28.26         18.78cVEK118M22
    CK24J030  C2024 05 12.00109919 27 13.644-42 57 29.41         18.44cVEK118M22
    CK24J030  C2024 05 12.00387919 27 13.642-42 57 29.16         18.43cVEK118M22
    CK24J030 1C2024 05 12.79567 19 26 58.94 -42 57 44.8                VEK118Q62
    CK24J030 1C2024 05 12.80031 19 26 58.87 -42 57 44.9          17.8 GVEK118Q62
    CK24J030  C2024 05 13.80636 19 26 39.59 -42 58 04.7          19.2 GVEK118Q59
    CK24J030  C2024 05 13.80989 19 26 39.54 -42 58 04.5          18.9 GVEK118Q59
    CK24J030  C2024 05 13.81340 19 26 39.42 -42 58 05.2          18.4 GVEK118Q59
    CK24J030  C2024 05 13.98378 19 26 36.21 -42 58 08.4          18.5 GVEK118M28
    CK24J030  C2024 05 13.98581 19 26 36.17 -42 58 08.4          18.5 GVEK118M28
    CK24J030  C2024 05 13.98783 19 26 36.14 -42 58 08.5          18.4 GVEK118M28
    CK24J030  C2024 05 15.78319 19 25 59.73 -42 58 41.5          18.2 GVEK118Q59
    CK24J030  C2024 05 15.78670 19 25 59.68 -42 58 41.5          18.3 GVEK118Q59
    CK24J030  C2024 05 15.79021 19 25 59.62 -42 58 41.3          18.4 GVEK118Q59
    CK24J030 KC2024 05 15.83153 19 25 58.75 -42 58 42.5          18.5 VuEK118323
    CK24J030 KC2024 05 15.85315 19 25 58.35 -42 58 42.6          18.6 VuEK118323
    CK24J030  C2024 05 15.93135 19 25 56.75 -42 58 43.6          18.7 GVEK118M28
    CK24J030  C2024 05 15.93335 19 25 56.73 -42 58 43.7          18.7 GVEK118M28
    CK24J030  C2024 05 15.93535 19 25 56.67 -42 58 44.0          18.7 GVEK118M28
    CK24J030  C2024 05 16.01399119 25 54.929-42 58 45.37         18.75cVEK118M22
    CK24J030  C2024 05 16.01688519 25 54.881-42 58 45.95         18.32cVEK118M22
    CK24J030  C2024 05 16.03281719 25 54.581-42 58 46.56         17.93cVEK118M22
    CK24J030  C2024 05 16.03573119 25 54.458-42 58 46.52         18.74cVEK118M22
    CK24J030 ZC2024 05 17.68595 19 25 18.92 -42 59 13.3          18.3 TVEK118Q62
    CK24J030 ZC2024 05 17.69683 19 25 18.65 -42 59 13.9                VEK118Q62
    CK24J030 .C2024 05 18.31966 19 25 04.865-42 59 24.40         18.1 GVEK118W88
    CK24J030 .C2024 05 18.34912 19 25 04.195-42 59 24.29         18.8 GVEK118W88
    CK24J030 KC2024 05 18.96512 19 24 50.19 -42 59 31.6          18.4 GVEK118M21
    CK24J030 KC2024 05 18.99806 19 24 49.39 -42 59 33.1          18.7 GVEK118M21
    CK24J030 KB2024 05 19.31549119 24 41.998-42 59 38.08         18.0 VZEK118Y05
    CK24J030 KB2024 05 19.33018519 24 41.580-42 59 38.04         18.1 VZEK118Y05
    CK24J030 KB2024 05 19.34488219 24 41.155-42 59 38.04         18.5 VZEK118Y05
    CK24J030 3C2024 05 19.38160 19 24 40.399-42 59 39.70         18.7 GVEK118W88
    CK24J030 3C2024 05 19.39007 19 24 40.291-42 59 38.72         18.7 GVEK118W88
    CK24J030  C2024 05 21.70699 19 23 44.67 -43 00 08.0          18.2 GVEK118Q58
    CK24J030  C2024 05 21.71050 19 23 44.56 -43 00 07.9          18.3 GVEK118Q58
    CK24J030  C2024 05 21.71402 19 23 44.42 -43 00 08.7          18.4 GVEK118Q58
    CK24J030  C2024 05 25.64333 19 22 02.24 -43 00 40.1          18.1 GVEK118Q58
    CK24J030  C2024 05 25.64684 19 22 02.18 -43 00 41.1          18.0 GVEK118Q58
    CK24J030  C2024 05 25.65036 19 22 02.09 -43 00 39.8          17.8 GVEK118Q58
    CK24J030  C2024 05 28.34120119 20 46.418-43 00 47.81         18.34oVEK118W68
    CK24J030  C2024 05 28.34537019 20 46.224-43 00 47.99         18.23oVEK118W68
    CK24J030  C2024 05 28.37313919 20 45.502-43 00 49.32         18.00oVEK118W68
    CK24J030  C2024 05 28.40140919 20 44.734-43 00 47.09         18.42oVEK118W68

Observer details:
323 Perth Observatory, Bickley.  Observers P. Camilleri, J. Oey.  Measurer P.
    Camilleri.  0.34-m F/5 reflector + 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, M. Auteri.  Measurers A. Aletti, M. Auteri.
    0.36-m f/7.5 Reflector + CCD.
M22 ATLAS South Africa, Sutherland.  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.
M28 Lesedi Telescope-SAAO Observatory, Sutherland.  Observers N. Erasmus, S.
    Potter, C. van Gend, S. Chandra, H. Worters.  Measurers T. Ngwane, N.
    Erasmus.  1.0-m f/8 Reflector + CCD.
M49 IAS Remote Observatory, Hakos.  Observers D. D. Husar, M. Junius, L.
    Demetz, A. Karakali, P. Ditz, R. Hellot, T. Daiber, T. Steinbach.
    Measurer D. Husar.  0.25-m f/4.5 reflector + CMO.
Q58 Siding Spring-LCO Clamshell #1.  Observer A. Hale.  0.35-m f/3 Cassegrain
    + CCD.
Q59 Siding Spring-LCO Clamshell #2.  Observer A. Hale.  0.35-m f/3 Cassegrain
    + CCD.
Q62 iTelescope Observatory, Siding Spring.  Observers H. Sato, T. Prystavski.
    0.51-m f/6.8 astrograph + CCD, 0.32-m f/9.0 Ritchey-Chretien + CCD.
R56 Scott Street Observatory, Lake Tekapo.  Observer A. Vilquin Barrajon.
    0.20-m f/8.1 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.
W88 Slooh.com Chile Observatory, La Dehesa.  Observers E. Cortes, B.
    Lutkenhoner.  0.43-m f/6.8 Corrected Dall-Kirkham + CCD.
Y05 SONEAR Wykrota-CEAMIG, Serra da Piedade.  Observers C. Jacques, A.
    Caetano, E. Pimentel.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CMO.

Orbital elements:
    C/2024 J3 (ATLAS)                                                           
Epoch 2026 Nov. 16.0 TT = JDT 2461360.5                                         
T 2026 Nov. 24.59579 TT                                 Rudenko                 
q   3.8615853            (2000.0)            P               Q                  
z  +0.0000209      Peri.   74.11028     +0.30541809     -0.19918018             
 +/-0.0000000      Node   285.97328     -0.55161920     +0.76007432             
e   0.9999193      Incl.   75.59217     +0.77616754     +0.61855823             
>From 70 observations 2024 May 6-28, mean residual 0".5.                         
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2024 04 29    19 30 12.0 -42 52 35   7.9965  8.3927   109.9     6.5  18.8
...
2024 05 14    19 26 35.8 -42 58 09   7.6944  8.3000   123.9     5.8  18.6
...
2024 05 22    19 23 37.4 -43 00 11   7.5476  8.2506   131.3     5.3  18.6
...
2024 05 28    19 20 56.3 -43 00 47   7.4457  8.2135   136.8     4.8  18.5
2024 05 29    19 20 27.3 -43 00 47   7.4295  8.2073   137.7     4.8  18.5
2024 05 30    19 19 57.7 -43 00 45   7.4135  8.2011   138.6     4.7  18.5
...
2024 06 05    19 16 47.9 -42 59 47   7.3224  8.1640   143.9     4.2  18.4
...
2024 06 13    19 12 05.8 -42 56 07   7.2152  8.1145   150.5     3.5  18.4
...
2024 06 28    19 02 11.6 -42 39 54   7.0622  8.0216   159.4     2.6  18.3

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K118





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