• Processing (Info)

    • MPEC 2019-G94 : 2016 GB1

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    Read MPEC 2019-G93 Read MPEC 2019-G95 

    M.P.E.C. 2019-G94                                Issued 2019 Apr. 8, 18:28 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

                                   2016 GB1

                           Revision to MPEC 2016-G55

Additional Observations:
     K16G01B  C2019 04 02.43222013 42 27.591-05 00 21.58         22.0 GVEG094F51
     K16G01B  C2019 04 02.44506113 42 26.239-05 00 06.80         21.4 GVEG094F51
     K16G01B  C2019 04 02.45789713 42 24.864-04 59 51.84         21.3 GVEG094F51
     K16G01B  C2019 04 02.47075413 42 23.484-04 59 36.60         21.6 GVEG094F51
     K16G01B  C2019 04 07.43012 13 32 42.067-03 09 57.24         21.5 wUEG094F51
     K16G01B  C2019 04 07.44056 13 32 40.604-03 09 41.87         21.6 wUEG094F51
     K16G01B  C2019 04 07.45102 13 32 39.137-03 09 26.16         21.5 wUEG094F51
     K16G01B  C2019 04 07.46149 13 32 37.679-03 09 10.52         21.7 wUEG094F51
     K16G01B |C2019 04 08.16188 13 31 02.42 -02 51 18.1          20.9 GUEG094807
     K16G01B |C2019 04 08.16656 13 31 01.75 -02 51 10.9          21.0 GUEG094807
     K16G01B |C2019 04 08.17103 13 31 01.09 -02 51 04.2          21.1 GUEG094807

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    1.00-m f/10.0 astrograph + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe,
    E. Magnier, A. Schultz, M. Willman.  Measurers S. Chastel, M. Huber,
    Y. Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer,
    L. Denneau, J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier.  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
190402 F51 0.57+ 0.15-    190408 807 0.62+ 0.15-    MPO382818   -0.55 day

Orbital elements:
2016 GB1                                                 Earth MOID = 0.0631 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 337.93871              (2000.0)            P               Q
n   0.33081798     Peri.  154.21172     +0.83347623     +0.55244331
a   2.0705067      Node   172.22512     -0.52012634     +0.79119689
e   0.7803812      Incl.    4.71688     -0.18650993     +0.26232397
P   2.98           H   21.3           G   0.15           U   3
Residuals in seconds of arc
160401 F51  0.1-  0.0     160414 705  0.6+  0.6-    160527 291  0.2-  0.0
160401 F51  0.3+  0.0     160414 705  0.4+  0.5-    160527 291  0.3-  0.2+
160401 F51  0.0   0.2+    160414 705  0.2+  0.5-    160527 291  0.6+  0.1-
160401 F51  0.2+  0.2+    160417 H21  0.1+  0.1+    190402 F51  0.3-  0.2+
160402 W86  0.4-  0.7-    160417 807  0.3-  0.8+    190402 F51  0.1+  0.1-
160402 W86  0.3-  0.9-    160417 H21  0.1+  0.0     190402 F51  0.1+  0.2-
160402 W86  0.3-  0.7-    160417 807  0.3-  0.1-    190402 F51  0.1+  0.1-
160402 568  0.1-  0.0     160417 H21  0.2+  0.1+    190407 F51  0.1-  0.0
160402 568  0.1-  0.1-    160417 807  0.3+  0.5+    190407 F51  0.1-  0.1-
160402 568  0.1-  0.1-    160425 705  0.0   0.3-    190407 F51  0.0   0.0
160403 291  0.0   0.3+    160425 705  0.3-  0.5-    190407 F51  0.1+  0.1+
160403 291  0.3-  0.3+    160425 705  0.1-  0.2+    190408 807  0.1+  0.1+
160403 291  0.5-  0.3+    160503 G96  0.3-  0.4-    190408 807  0.3+  0.1+
160413 926  0.1+  0.1-    160503 G96  0.4-  0.6+    190408 807  0.1+  0.1-
160413 926  0.0   0.1-    160503 G96  0.2+  0.1-
160413 926  0.1-  0.1-    160503 G96  0.1-  0.2-

Ephemeris:
2016 GB1                 a,e,i = 2.07, 0.78, 5                   q = 0.4547
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 03 09    14 01 19.9 -09 32 11   1.0147  1.8628   136.2    21.6    23.7
...
2019 03 24    13 54 27.6 -07 28 10   0.7526  1.7029   153.3    15.3    22.7
...
2019 04 01    13 44 46.7 -05 27 24   0.6294  1.6128   163.7    10.0    22.0
...
2019 04 07    13 33 38.9 -03 20 24   0.5461  1.5429   171.3     5.6    21.4
2019 04 08    13 31 24.6 -02 55 35   0.5330  1.5310   172.3     5.0    21.3
2019 04 09    13 29 03.1 -02 29 36   0.5202  1.5191   173.0     4.6    21.2
...
2019 04 15    13 12 08.7 +00 32 43   0.4490  1.4463   169.0     7.6    20.9
...
2019 04 23    12 40 53.1 +05 56 07   0.3700  1.3457   153.1    19.7    20.8
...
2019 05 08    11 07 18.8 +19 50 31   0.2793  1.1458   112.6    54.4    20.8

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-G94

    Read MPEC 2019-G93 Read MPEC 2019-G95

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