[Iaude] MPEC K41: COMET C/2024 G7 (ATLAS)

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Tue May 21 14:51:09 EDT 2024


M.P.E.C. 2024-K41                                  Issued 2024 May 21, 18:48 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 G7 (ATLAS)                             

     H. Sato reports cometary activity of an asteroidal NEOCP candidate (first
reported by ATLAS Chile - W68 on Apr. 3 UT) in 8 stacked 60-second images
taken on Apr. 7 UT by iTelescope Deep Sky Chile (X07), noting a diffuse 7"
coma. Additional reports of cometary features are as follows:

OC   Date        Reporter           Coma    Tail    PA          Exposures

Q62  2024-04-21  T. Prystavski     12"                           10x120s
Q62  2024-05-07  H. Sato            7"                            8x60s


Observations:
    CK24G070* C2024 04 03.34729222 07 44.959-61 32 18.89         19.41oVEK041W68
    CK24G070  C2024 04 03.37231622 07 45.751-61 32 28.82         19.47oVEK041W68
    CK24G070  C2024 04 03.37508822 07 45.790-61 32 31.16         19.23oVEK041W68
    CK24G070  C2024 04 03.39451222 07 46.296-61 32 39.26         19.42oVEK041W68
    CK24G070  C2024 04 06.33363122 09 00.307-61 52 48.58         19.52oVEK041W68
    CK24G070  C2024 04 06.34336422 09 00.701-61 52 52.50         19.09oVEK041W68
    CK24G070  C2024 04 06.34613022 09 00.689-61 52 54.62         19.45oVEK041W68
    CK24G070  C2024 04 06.35591122 09 00.881-61 52 58.15         19.28oVEK041W68
    CK24G070  C2024 04 06.35868322 09 00.934-61 52 59.88         17.97oVEK041W68
    CK24G070  C2024 04 06.41272522 09 02.297-61 53 23.93         19.20oVEK041W68
    CK24G070 0C2024 04 07.40313 22 09 26.06 -62 00 27.0                VEK041X07
    CK24G070 0C2024 04 07.40626 22 09 26.14 -62 00 28.3          19.1 GVEK041X07
    CK24G070 KC2024 04 08.33465 22 09 48.02 -62 07 13.1          19.3 VqEK041I47
    CK24G070 KC2024 04 08.36487 22 09 48.63 -62 07 27.2          19.1 VqEK041I47
    CK24G070 KC2024 04 09.12844 22 10 06.14 -62 13 05.0          19.5 GVEK041M21
    CK24G070 KC2024 04 09.15334 22 10 06.67 -62 13 16.5                VEK041M21
    CK24G070 3C2024 04 09.39916222 10 12.24 -62 15 06.3          19.5 GVEK041W86
    CK24G070 3C2024 04 09.40233622 10 12.31 -62 15 07.6          19.5 GVEK041W86
    CK24G070 3C2024 04 09.40551922 10 12.38 -62 15 09.0          19.5 GVEK041W86
    CK24G070 3C2024 04 09.40869922 10 12.46 -62 15 10.5          19.6 GVEK041W86
    CK24G070 KC2024 04 10.39006 22 10 34.14 -62 22 34.3          18.8 GVEK041X03
    CK24G070 KC2024 04 10.40010 22 10 34.42 -62 22 39.0          18.6 GVEK041X03
    CK24G070 KC2024 04 10.40901 22 10 34.48 -62 22 44.1          19.1 GVEK041X03
    CK24G070 0B2024 04 11.14084 22 10 50.326-62 28 19.67         19.3 VZEK041M49
    CK24G070 0B2024 04 11.14939 22 10 50.530-62 28 23.88         19.3 VZEK041M49
    CK24G070 0B2024 04 11.15791 22 10 50.722-62 28 27.95         19.5 VZEK041M49
    CK24G070 0B2024 04 12.16131 22 11 11.690-62 36 16.16         19.6 VZEK041M49
    CK24G070 0B2024 04 12.16487 22 11 11.762-62 36 17.96         19.4 VZEK041M49
    CK24G070 0B2024 04 12.16843 22 11 11.827-62 36 19.84         19.7 VZEK041M49
    CK24G070 ZC2024 04 21.79026 22 13 52.63 -63 58 06.8          19.2 TVEK041Q62
    CK24G070 ZC2024 04 21.79478 22 13 52.62 -63 58 10.0                VEK041Q62
    CK24G070 ZC2024 04 21.80005 22 13 52.68 -63 58 13.7                VEK041Q62
    CK24G070 KC2024 04 25.27529 22 14 29.85 -64 30 49.0          19.3 VqEK041I47
    CK24G070 KC2024 04 25.35520 22 14 30.65 -64 31 36.1          19.4 VqEK041I47
    CK24G070 0B2024 04 26.13148 22 14 37.121-64 39 05.47         19.6 VZEK041M49
    CK24G070 0B2024 04 26.15344 22 14 37.315-64 39 18.40         19.2 VZEK041M49
    CK24G070 0B2024 04 26.17596 22 14 37.426-64 39 32.11         18.9 VZEK041M49
    CK24G070 KC2024 05 07.30044 22 14 46.56 -66 35 38.9          19.1 VqEK041I47
    CK24G070 KC2024 05 07.38023 22 14 46.01 -66 36 33.3          19.0 VqEK041I47
    CK24G070 1C2024 05 07.79155 22 14 42.83 -66 41 08.5                VEK041Q62
    CK24G070 1C2024 05 07.79503 22 14 42.82 -66 41 11.1          18.6 GVEK041Q62
    CK24G070 KC2024 05 10.30874 22 14 17.25 -67 09 37.7          19.0 VqEK041I47
    CK24G070 KC2024 05 10.37263 22 14 16.60 -67 10 23.4          19.0 VqEK041I47
    CK24G070 0B2024 05 11.13498 22 14 06.734-67 19 09.30         18.6 VZEK041M49
    CK24G070 0B2024 05 11.14138 22 14 06.595-67 19 13.80         19.3 VZEK041M49

Observer details:
I47 Pierre Auger Observatory, Malargue.  Observer M. Masek.  0.3-m f/6.8
    reflector + CCD.
M21 Schiaparelli Southern Observatory, Hakos.  Observers A. Aletti, F.
    Bellini, L. Buzzi, G. Galli.  Measurer 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 T. Prystavski, H. Sato.
    0.51-m f/4 Corrected Dall-Kirkham + CCD, 0.51-m f/6.8 astrograph + CCD +
    f/4.5 focal reducer.
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.
W86 Cerro Tololo-LCO B.  Observer J. D. Armstrong.  1.0-m f/8 modified
    Ritchey-Chretien + CCD.
X03 Observatoire SADR, Poroto.  Observers J. L. Virlichie, P. Traverse, H.
    Roy.  Measurer H. Roy.  0.36-m f/4.8 reflector + CCD.
X07 iTelescope Deep Sky Chile, Rio Hurtado.  Observer H. Sato.  0.51-m f/6.8
    astrograph + CCD.

Orbital elements:
    C/2024 G7 (ATLAS)                                                           
Epoch 2025 Feb. 14.0 TT = JDT 2460720.5                                         
T 2025 Feb. 8.65311 TT                                  Rudenko                 
q   6.0329419            (2000.0)            P               Q                  
z  -0.0000037      Peri.  289.47361     -0.19690411     -0.96811164             
 +/-0.0000000      Node   191.93762     -0.34339468     -0.07986847             
e   1.0000225      Incl.  131.51519     -0.91831850     +0.23744656             
>From 45 observations 2024 Apr. 3-May 11, mean residual 0".4.                    
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2024 04 21    22 13 42.3 -63 50 56   6.3521  6.3710    86.5     9.1  19.1
...
2024 05 06    22 14 54.5 -66 21 17   6.1324  6.3384    97.2     9.1  19.0
...
2024 05 14    22 13 18.9 -67 52 41   6.0226  6.3217   102.7     9.0  18.9
...
2024 05 20    22 10 43.0 -69 05 29   5.9457  6.3094   106.6     8.8  18.9
2024 05 21    22 10 08.8 -69 17 55   5.9334  6.3073   107.2     8.8  18.9
2024 05 22    22 09 32.0 -69 30 26   5.9212  6.3053   107.8     8.8  18.9
...
2024 05 28    22 04 51.3 -70 46 50   5.8519  6.2934   111.4     8.6  18.8
...
2024 06 05    21 55 26.0 -72 30 44   5.7704  6.2778   115.7     8.4  18.8
...
2024 06 20    21 23 57.1 -75 38 50   5.6567  6.2498   121.6     8.0  18.7

M. P. C. Staff               (C) Copyright 2024 MPC           M.P.E.C. 2024-K41





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