[Iaude] MPEC S105: COMET P/2006 R1 = 2019 S1 (Siding Spring)

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Sep 26 22:56:25 EDT 2019


M.P.E.C. 2019-S105                           Issued 2019 September 27, 02:51 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                   COMET P/2006 R1 = 2019 S1 (Siding Spring)                    

     This comet has been recovered, independently, by the undersigned and by
R. Weryk in images reported from the Pan-STARRS 1 telescope (F51).  Weryk
reported that the comet is essentially stellar in images taken on Sept. 26.
The indicated delta-T correction to the prediction, by the undersigned, on
MPC 105244, is -6.6 days.

Observations:
    PK19S010* C2019 09 25.52539 02 43 31.887+03 53 41.88         20.5 wUES105F51
    PK19S010  C2019 09 25.53811 02 43 28.380+03 53 04.34         20.4 wUES105F51
    PK19S010  C2019 09 25.55084 02 43 24.864+03 52 26.87         20.3 wUES105F51
    PK19S010  C2019 09 25.56358 02 43 21.336+03 51 49.20         20.4 wUES105F51
    PK19S010 KC2019 09 26.06005002 41 04.431+03 27 07.52         20.3 GVES105J04
    PK19S010 KC2019 09 26.06161302 41 04.008+03 27 02.75         20.5 GVES105J04
    PK19S010 KC2019 09 26.06344102 41 03.501+03 26 57.41         20.2 GVES105J04
    PK19S010 pC2019 09 26.13207502 40 43.91 +03 23 27.9          20.0 GVES105L01
    PK19S010 KC2019 09 26.13467302 40 43.16 +03 23 20.5          19.7 GVES105L01
    PK19S010 KC2019 09 26.13813902 40 42.16 +03 23 10.3          19.6 GVES105L01
    PK19S010  C2019 09 26.55128 02 38 45.624+03 02 15.94         20.5 wUES105F51
    PK19S010  C2019 09 26.56436 02 38 41.853+03 01 35.81         20.4 wUES105F51
    PK19S010  C2019 09 26.57734 02 38 38.116+03 00 56.04         20.5 wUES105F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M. 
   Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J. 
   Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. 
   Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers M. 
   Micheli, D. Koschny, M. Busch, A. Knofel, E. Schwab.  1.0-m f/4.4 
   reflector + CCD.
L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector + 
   CCD.

Orbital elements:
    P/2006 R1 (Siding Spring)                                                   
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5                                        
T 2006 Sept. 3.67388 TT                                 Williams                
q   1.6711048            (2000.0)            P               Q                  
n   0.07400939     Peri.  249.30973     +0.82487623     -0.52348001             
a   5.6183849      Node   218.63313     -0.30049674     -0.72579389             
e   0.7025649      Incl.  160.01117     -0.47883287     -0.44630920             
P  13.3                                                                         
>From 65 observations 2006 Sept. 1-2019 Sept. 26, mean residual 0".4.            
                                                                                
    P/2006 R1 (Siding Spring)                                                   
Epoch 2019 Dec. 23.0 TT = JDT 2458840.5                                         
T 2019 Dec. 29.28442 TT                                 Williams                
q   1.6633360            (2000.0)            P               Q                  
n   0.07382745     Peri.  249.29762     +0.82684873     -0.52021008             
a   5.6276121      Node   218.83801     -0.29821369     -0.72778834             
e   0.7044331      Incl.  160.06864     -0.47685403     -0.44688433             
P  13.4                                                                         
>From 65 observations 2006 Sept. 1-2019 Sept. 26, mean residual 0".4.            
                                                                                
    P/2006 R1 (Siding Spring)                                                   
Epoch 2033 May 3.0 TT = JDT 2463720.5                                           
T 2033 May 3.18548 TT                                   Williams                
q   1.6607465            (2000.0)            P               Q                  
n   0.07372956     Peri.  249.12138     +0.82876185     -0.51705543             
a   5.6325917      Node   218.87964     -0.29537022     -0.72902767             
e   0.7051541      Incl.  160.06358     -0.47530014     -0.44852239             
P  13.4                                                                         
>From 65 observations 2006 Sept. 1-2019 Sept. 26.                                
                                                                                
    P/2006 R1 (Siding Spring)                                                   
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                                         
T 2019 Dec. 29.26079 TT                                 Williams                
q   1.6634130            (2000.0)            P               Q                  
n   0.07378577     Peri.  249.28626     +0.82695239     -0.52005167             
a   5.6297308      Node   218.83752     -0.29808886     -0.72784829             
e   0.7045306      Incl.  160.06993     -0.47675233     -0.44697107             
P  13.4                                                                         
>From 65 observations 2006 Sept. 1-2019 Sept. 26, mean residual 0".4.            
                                                                                
Ephemeris:
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   m1    m2
2019 08 28    03 55 02.6 +17 22 54   1.8103  2.1317    93.9    28.2  20.6
...
2019 09 12    03 29 44.3 +12 20 56   1.3939  2.0390   115.3    26.5  19.8
...
2019 09 20    03 05 55.4 +07 57 17   1.1955  1.9920   129.6    22.9  19.4
...
2019 09 26    02 41 21.2 +03 30 14   1.0693  1.9580   141.8    18.5  19.1
2019 09 27    02 36 37.0 +02 39 14   1.0509  1.9525   143.9    17.6  19.0
2019 09 28    02 31 41.3 +01 46 23   1.0333  1.9470   146.1    16.7  19.0
...
2019 10 04    01 58 05.3 -04 06 20   0.9490  1.9147   158.3    11.1  18.7
...
2019 10 12    01 04 06.5 -12 46 16   0.9042  1.8739   160.1    10.4  18.5
...
2019 10 27    23 20 15.5 -25 03 02   1.0377  1.8051   125.3    26.7  18.6

Gareth V. Williams           (C) Copyright 2019 MPC           M.P.E.C. 2019-S105




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