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    • MPEC 2023-O89 : COMET P/2004 V3 = P/2023 O1 (Siding Spring)

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    M.P.E.C. 2023-O89                                 Issued 2023 July 27, 04:25 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/2004 V3 = P/2023 O1 (Siding Spring)               

     M. Masek reports the recovery of comet P/2004 V3 (Siding Spring) in images
taken on July 18 and 19 UT from Pierre Auger Observatory (I47).

Observations:
    PK23O010 KC2023 07 18.23859 23 30 14.56 -60 06 07.4          19.6 VqEO089I47
    PK23O010 KC2023 07 18.25445 23 30 13.62 -60 06 11.8          19.7 VqEO089I47
    PK23O010*KC2023 07 19.37394 23 29 14.80 -60 10 39.0          19.6 VqEO089I47
    PK23O010 KC2023 07 19.38317 23 29 14.32 -60 10 41.4          19.7 VqEO089I47
    PK23O010 KC2023 07 19.39082 23 29 13.87 -60 10 43.3          19.6 VqEO089I47
    PK23O010 KC2023 07 19.40007 23 29 13.37 -60 10 45.0          19.6 VqEO089I47
    PK23O010 KC2023 07 19.40776 23 29 12.97 -60 10 47.4          19.7 VqEO089I47

Observer details:
I47 Pierre Auger Observatory, Malargue.  Observer M. Masek.  0.3-m f/6.8
    reflector + CCD.

Orbital elements:
    P/2004 V3 (Siding Spring)                                                   
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                                        
T 2023 Nov. 21.00555 TT                                 Rudenko                 
q   3.9499057            (2000.0)            P               Q                  
n   0.05183175     Peri.  322.54621     +0.76586254     +0.64089044             
a   7.1242439      Node   356.12563     -0.21720742     +0.18160100             
e   0.4455684      Incl.   50.44449     -0.60520700     +0.74584216             
P  19.0                                                                         
From 67 observations 2004 Nov. 3-2023 July 19, mean residual 0".7.              
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2023 06 27    23 40 09.7 -58 31 54   3.5031  4.0394   115.0    13.2  20.3
...
2023 07 12    23 34 50.0 -59 39 34   3.3842  4.0224   122.5    12.3  20.2
...
2023 07 20    23 28 41.0 -60 13 04   3.3338  4.0140   125.8    11.8  20.2
...
2023 07 26    23 22 33.5 -60 34 11   3.3030  4.0080   127.9    11.5  20.1
2023 07 27    23 21 25.0 -60 37 14   3.2985  4.0070   128.2    11.5  20.1
2023 07 28    23 20 14.6 -60 40 07   3.2942  4.0061   128.5    11.4  20.1
...
2023 08 03    23 12 32.7 -60 53 49   3.2721  4.0005   130.0    11.2  20.1
...
2023 08 11    23 00 47.2 -61 00 22   3.2535  3.9935   131.1    11.0  20.1
...
2023 08 26    22 36 16.5 -60 26 49   3.2547  3.9817   130.1    11.2  20.1

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-O89

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