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  • MPEC 2019-P61 : COMET P/2010 U2 = 2019 P1 (Hill)

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    M.P.E.C. 2019-P61                                Issued 2019 August 9, 01:56 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/2010 U2 = 2019 P1 (Hill)                     
    
         This comet has been recovered by K. Sarneczky (461) in images obtained on
    August 2 and 7.  The appearance was described as faint and diffuse on both
    nights, with a short tail to the west visible in six co-added 120-s exposures
    on August 7.  The indicated delta-T correcton to the prediction, by the
    undersigned, on MPC 102107 is -0.47 days. 
    
    Observations:
        PK10U020 KC2019 08 02.05151 03 03 18.97 +26 26 36.7          20.4 ToEP061461
        PK10U020 KC2019 08 02.05797 03 03 19.46 +26 26 40.7          20.9 ToEP061461
        PK10U020 KC2019 08 07.04829 03 09 39.20 +27 25 52.1          20.6 ToEP061461
        PK10U020 KC2019 08 07.05801 03 09 39.91 +27 25 59.5          21.0 ToEP061461
    
    Observer details:
    461 University of Szeged, Piszkesteto Stn. (Konkoly).  Observer K. Sarneczky.
        0.60-m Schmidt + CCD.
    
    Orbital elements:
        P/2010 U2 (Hill)                                                            
    Epoch 2010 Nov. 20.0 TT = JDT 2455520.5                                         
    T 2010 Nov.  9.30872 TT                                 Williams                
    q   2.5526931            (2000.0)            P               Q                  
    n   0.11151603     Peri.   44.24132     +0.74872796     -0.66272043             
    a   4.2747546      Node   357.14929     +0.49865395     +0.57743994             
    e   0.4028445      Incl.   16.86049     +0.43675013     +0.47682780             
    P   8.84                                                                        
    From 267 observations 2010 Oct. 1-2019 Aug. 7, mean residual 0".6.              
                                                                                    
        P/2010 U2 (Hill)                                                            
    Epoch 2019 Oct. 4.0 TT = JDT 2458760.5                                          
    T 2019 Sept. 14.81439 TT                                Williams                
    q   2.5675990            (2000.0)            P               Q                  
    n   0.11105358     Peri.   44.33673     +0.74839665     -0.66308745             
    a   4.2866135      Node   357.07974     +0.49905229     +0.57762458             
    e   0.4010192      Incl.   16.82617     +0.43686298     +0.47609335             
    P   8.88                                                                        
    From 267 observations 2010 Oct. 1-2019 Aug. 7, mean residual 0".6.              
                                                                                    
        P/2010 U2 (Hill)                                                            
    Epoch 2028 Aug. 17.0 TT = JDT 2462000.5                                         
    T 2028 Aug. 5.32757 TT                                  Williams                
    q   2.5690175            (2000.0)            P               Q                  
    n   0.11094535     Peri.   44.47783     +0.74807157     -0.66344080             
    a   4.2894010      Node   356.96123     +0.49912548     +0.57772601             
    e   0.4010778      Incl.   16.81724     +0.43733589     +0.47547762             
    P   8.88                                                                        
    From 267 observations 2010 Oct. 1-2019 Aug. 7, mean residual 0".6.              
                                                                                    
        P/2010 U2 (Hill)                                                            
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                                         
    T 2019 Sept. 14.84176 TT                                Williams                
    q   2.5675875            (2000.0)            P               Q                  
    n   0.11109863     Peri.   44.34146     +0.74831891     -0.66317539             
    a   4.2854546      Node   357.08180     +0.49911612     +0.57755260             
    e   0.4008599      Incl.   16.82727     +0.43692323     +0.47605819             
    P   8.87                                                                        
    From 267 observations 2010 Oct. 1-2019 Aug. 7, mean residual 0".6.              
                                                                                    
    Ephemeris:
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
    2019 07 10    02 31 44.4 +21 47 22   2.8708  2.6072    64.9    20.7  19.5
    ...
    2019 07 25    02 52 39.7 +24 50 12   2.6875  2.5916    73.6    22.1  19.3
    ...
    2019 08 02    03 03 14.8 +26 26 00   2.5884  2.5848    78.5    22.6  19.2
    ...
    2019 08 08    03 10 49.8 +27 37 07   2.5139  2.5804    82.2    22.9  19.1
    2019 08 09    03 12 03.6 +27 48 54   2.5015  2.5798    82.9    23.0  19.1
    2019 08 10    03 13 16.8 +28 00 41   2.4892  2.5791    83.5    23.0  19.1
    ...
    2019 08 16    03 20 21.9 +29 11 01   2.4152  2.5756    87.4    23.1  19.0
    ...
    2019 08 24    03 29 06.5 +30 44 00   2.3177  2.5719    92.7    23.1  18.9
    ...
    2019 09 08    03 42 41.8 +33 35 51   2.1415  2.5680   103.3    22.4  18.7
    
    Gareth V. Williams           (C) Copyright 2019 MPC           M.P.E.C. 2019-P61
    


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