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  • MPEC 2019-V170 : 2019 GR2

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    M.P.E.C. 2019-V170                            Issued 2019 November 14, 16:09 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
    
                                    2019 GR2                                 
    
    
                               Revision to MPEC 2019-G77                            
    
    Additional Observations:
         K19G02R  C2017 09 30.50113302 57 39.476+04 02 37.78         22.9 GVEV170F51
         K19G02R  C2017 09 30.51324602 57 38.310+04 02 43.85         22.9 GVEV170F51
         K19G02R  C2017 09 30.52538402 57 37.160+04 02 49.83         23.4 GVEV170F51
         K19G02R  C2017 09 30.53994902 57 35.751+04 02 56.42         22.7 GVEV170F51
         K19G02R  C2017 09 30.55069602 57 34.708+04 03 01.96         23.3 GVEV170F51
         K19G02R  C2017 09 30.56143002 57 33.667+04 03 06.88         23.2 GVEV170F51
         K19G02R  C2017 09 30.57216002 57 32.626+04 03 12.53         22.7 GVEV170F51
         K19G02R  C2017 10 01.56340002 55 58.538+04 11 16.78         22.9 GVEV170F51
         K19G02R  C2017 10 01.57497302 55 57.311+04 11 23.25         21.7 GVEV170F51
         K19G02R  C2017 10 01.58668902 55 56.239+04 11 27.99         22.2 GVEV170F51
         K19G02R  C2017 10 28.47695602 01 50.620+08 04 23.01         22.5 GVEV170F51
         K19G02R  C2017 10 28.48966202 01 48.947+08 04 29.45         21.9 GVEV170F51
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A. 
       Schultz, M. Willman.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R. 
       Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    170930 F51 0.03+ 0.05+    171028 F51 0.03+ 0.05+    MPO477913   +0.00 days
    
    Orbital elements:
    2019 GR2                                                 Earth MOID = 0.2877 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres
    M 347.39365              (2000.0)            P               Q
    n   0.42228506     Peri.  214.70068     -0.38803016     +0.85905302
    a   1.7595390      Node    36.09282     -0.66375514     -0.00915821
    e   0.2884581      Incl.   34.52241     -0.63942295     -0.51180469
    P   2.33           H   20.3           G   0.15           U   1
    Residuals in seconds of arc
    170930 F51  0.3-  0.0     190403 H21  0.1-  0.3-    190410 807  0.2+  0.0
    170930 F51  0.2-  0.2+    190403 H21  0.3-  0.2-    190412 474  0.4+  0.3+
    170930 F51  0.1+  0.3+    190403 568  0.0   0.0     190412 474  0.0   0.3-
    170930 F51  0.1+  0.2-    190403 568  0.1-  0.0     190412 474  0.2-  0.0
    170930 F51  0.0   0.1+    190403 568  0.0   0.0     190414 I52  0.6-  0.5-
    170930 F51  0.1-  0.2-    190405 I52  0.3+  0.7-    190414 I52  0.5+  0.2+
    170930 F51  0.1-  0.2+    190405 I52  0.6-  0.2+    190414 I52  0.3+  0.7-
    171001 F51  0.5+  0.4-    190405 I52  0.3+  0.5+    190510 474  0.1-  0.0
    171001 F51  0.7-  0.4+    190405 I52  0.0   0.4-    190510 474  0.0   0.5-
    171001 F51  0.7+  0.6-    190407 L01  0.5-  0.7+    190510 474  0.6+  0.4-
    171028 F51  0.1+  0.2+    190407 L01  0.3-  0.7+    190602 474  0.1+  0.3+
    171028 F51  0.1+  0.0     190407 L01  0.6+  0.3+    190602 474  0.1+  0.2+
    190402 F51  0.1-  0.1-    190409 T12  0.0   0.0     190602 474  0.2+  0.1-
    190402 F51  0.0   0.0     190409 T12  0.0   0.0     190628 474  0.2+  0.1-
    190402 F51  0.0   0.0     190409 T12  0.0   0.1+    190628 474  0.1-  0.4-
    190402 F51  0.0   0.1-    190410 807  0.2+  0.0     190628 474  0.2+  0.0
    190403 H21  0.6-  0.1-    190410 807  0.3+  0.1-
    
    Ephemeris:
    2019 GR2                 a,e,i = 1.76, 0.29, 35                  q = 1.2520
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 10 15    21 56 44.0 -58 06 35   1.0987  1.6334   102.3    36.6    23.1
    ...
    2019 10 30    22 13 13.0 -47 54 53   1.2296  1.6916    98.5    35.5    23.3
    ...
    2019 11 07    22 22 50.7 -42 48 41   1.3121  1.7223    95.8    34.9    23.5
    ...
    2019 11 13    22 30 19.4 -39 10 05   1.3791  1.7450    93.4    34.5    23.6
    2019 11 14    22 31 35.2 -38 34 37   1.3907  1.7488    93.0    34.4    23.7
    2019 11 15    22 32 51.3 -37 59 24   1.4023  1.7525    92.6    34.3    23.7
    ...
    2019 11 21    22 40 33.4 -34 33 51   1.4746  1.7749    90.0    33.8    23.8
    ...
    2019 11 29    22 51 03.3 -30 14 41   1.5761  1.8043    86.3    33.1    24.0
    ...
    2019 12 14    23 11 19.4 -22 51 39   1.7783  1.8576    78.8    31.3    24.2
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-V170
    


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