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  • MPEC 2022-N81 : COMET P/2012 O3 = P/2022 G2 (McNaught)

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    M.P.E.C. 2022-N81                                 Issued 2022 July 12, 03:15 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  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/2012 O3 = P/2022 G2 (McNaught)                  
    
         Comet P/2012 O3 has been detected in images taken on Apr. 10 UT by H. Sato
    at iTelescope Observatory, Siding Spring (Q62); and on June. 28 by Pan-STARRS 2
    (F52).
    
    Observations:
        PK22G020 KC2022 04 10.79586 21 57 30.66 -22 48 32.7                 EN081Q62
        PK22G020 KC2022 04 10.80118 21 57 31.52 -22 48 26.3          20.9 G EN081Q62
        PK22G020* C2022 06 28.58263801 00 07.059+07 25 52.67         20.98wUEN081F52
        PK22G020  C2022 06 28.58777201 00 07.620+07 26 00.01         20.80wUEN081F52
        PK22G020  C2022 06 28.59282101 00 08.151+07 26 07.15         20.85wUEN081F52
        PK22G020  C2022 06 28.59786701 00 08.682+07 26 14.54         20.80wUEN081F52
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, 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.
    Q62 iTelescope Observatory, Siding Spring.  Observer H. Sato.  0.51-m f/6.8
        astrograph + CCD + f/4.5 focal reducer.
    
    Orbital elements:
        P/2012 O3 (McNaught)                                                        
    Epoch 2012 Aug. 21.0 TT = JDT 2456160.5                                         
    T 2012 Aug. 16.07135 TT                                 Rudenko                 
    q   1.5994446            (2000.0)            P               Q                  
    n   0.10140589     Peri.  343.64957     +0.77777059     +0.61867518             
    a   4.5543591      Node   336.99636     -0.54020166     +0.56769377             
    e   0.6488102      Incl.   16.49663     -0.32133329     +0.54310663             
    P   9.72                                                                        
    From 320 observations 2012 July 23-2022 June 28, mean residual 0".6.            
                                                                                    
        P/2012 O3 (McNaught)                                                        
    Epoch 2022 May 21.0 TT = JDT 2459720.5                                          
    T 2022 May 29.64482 TT                                  Rudenko                 
    q   1.6139439            (2000.0)            P               Q                  
    n   0.10076606     Peri.  344.75248     +0.78336589     +0.61093927             
    a   4.5736177      Node   336.41406     -0.53616781     +0.57107748             
    e   0.6471188      Incl.   16.61577     -0.31442322     +0.54829164             
    P   9.78                                                                        
    From 320 observations 2012 July 23-2022 June 28, mean residual 0".6.            
                                                                                    
        P/2012 O3 (McNaught)                                                        
    Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                                          
    T 2022 May 29.63943 TT                                  Rudenko                 
    q   1.6139188            (2000.0)            P               Q                  
    n   0.10072836     Peri.  344.74876     +0.78332243     +0.61099565             
    a   4.5747590      Node   336.41375     -0.53621094     +0.57104730             
    e   0.6472123      Incl.   16.61503     -0.31445794     +0.54826025             
    P   9.78                                                                        
    From 310 observations 2012 July 23-2022 June 28, mean residual 0".5.            
                                                                                    
        P/2012 O3 (McNaught)                                                        
    Epoch 2032 Feb. 18.0 TT = JDT 2463280.5                                         
    T 2032 Feb. 4.29459 TT                                  Rudenko                 
    q   1.6203330            (2000.0)            P               Q                  
    n   0.10078203     Peri.  344.07232     +0.77313347     +0.62354858             
    a   4.5731347      Node   336.14453     -0.54610530     +0.56147312             
    e   0.6456844      Incl.   16.66516     -0.32254246     +0.54399918             
    P   9.78                                                                        
    From 320 observations 2012 July 23-2022 June 28, mean residual 0".6.            
                                                                                    
        P/2012 O3 (McNaught)                                                        
    Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                                          
    T 2022 May 29.63944 TT                                  Rudenko                 
    q   1.6139191            (2000.0)            P               Q                  
    n   0.10072834     Peri.  344.74885     +0.78332292     +0.61099495             
    a   4.5747595      Node   336.41371     -0.53621055     +0.57104750             
    e   0.6472122      Incl.   16.61505     -0.31445738     +0.54826082             
    P   9.78                                                                        
    From 320 observations 2012 July 23-2022 June 28, mean residual 0".6.            
                                                                                    
    Ephemeris:
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
    2022 06 12    00 28 00.0 +00 46 18   1.5731  1.6205    74.0    37.0  19.6
    ...
    2022 06 27    00 57 13.1 +06 48 16   1.4942  1.6431    79.3    37.4  19.5
    ...
    2022 07 05    01 11 26.1 +09 56 47   1.4546  1.6614    82.4    37.3  19.5
    ...
    2022 07 11    01 21 23.2 +12 15 13   1.4259  1.6779    85.0    37.1  19.5
    2022 07 12    01 22 58.9 +12 38 01   1.4212  1.6809    85.5    37.1  19.5
    2022 07 13    01 24 33.5 +13 00 45   1.4165  1.6839    85.9    37.0  19.5
    ...
    2022 07 19    01 33 36.4 +15 15 16   1.3889  1.7033    88.8    36.6  19.5
    ...
    2022 07 27    01 44 27.6 +18 09 25   1.3531  1.7324    92.9    35.8  19.5
    ...
    2022 08 11    02 00 20.2 +23 16 55   1.2906  1.7957   101.7    33.5  19.6
    
    M. P. C. Staff               (C) Copyright 2022 MPC           M.P.E.C. 2022-N81
    


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