[Iaude] MPEC P72: 2000 GB2 [a=2.47,e=0.60,i=7.1,H=18.8]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Aug 12 15:41:17 EDT 2018


M.P.E.C. 2018-P72                                Issued 2018 Aug. 12, 19:37 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


                                   2000 GB2
 
                           Revision to MPEC 2000-G24
 
Additional Observations:
     K00G02B  C2018 08 11.40901 20 50 19.245-07 49 03.65         21.8 wUEP072F51
     K00G02B  C2018 08 11.42074 20 50 18.336-07 49 08.09         22.0 wUEP072F51
     K00G02B  C2018 08 11.43245 20 50 17.430-07 49 12.69         21.8 wUEP072F51
     K00G02B  C2018 08 11.44415 20 50 16.536-07 49 17.05         21.9 wUEP072F51
     K00G02B KC2018 08 12.20157720 49 19.95 -07 54 11.0          21.3 VuEP072H21
     K00G02B KC2018 08 12.20889020 49 19.37 -07 54 13.7          21.4 VuEP072H21
     K00G02B KC2018 08 12.22005920 49 18.52 -07 54 17.9          21.3 VuEP072H21
     K00G02B  C2018 08 12.37095 20 49 07.284-07 55 14.95         22.0 wUEP072F51
     K00G02B  C2018 08 12.38209 20 49 06.429-07 55 19.09         22.3 wUEP072F51
     K00G02B  C2018 08 12.39327 20 49 05.563-07 55 23.60         22.1 wUEP072F51
     K00G02B  C2018 08 12.40437 20 49 04.707-07 55 27.91         21.7 wUEP072F51
 
Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
    1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    astrograph + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
180811 F51   52-   16-    180812 F51   52-   16-    MPO 57769    +96 day
 
Orbital elements:
2000 GB2                                                 Earth MOID = 0.1047 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 267.56141              (2000.0)            P               Q
n   0.25417625     Peri.  254.46003     +0.13925246     -0.99012118
a   2.4681946      Node   187.59230     +0.94945358     +0.13820003
e   0.5964178      Incl.    7.12832     +0.28133014     +0.02368142
P   3.88           H   18.8           G   0.15           U   4
Residuals in seconds of arc
000401 691  0.3+  0.5+    000404 691  0.3-  0.6+    180811 F51  0.0   0.0
000401 691  0.2+  0.1-    000404 691  0.1+  0.1-    180811 F51  0.1-  0.0
000401 691  0.1-  0.1-    000404 691  0.4-  0.2-    180811 F51  0.1-  0.1-
000402 691  0.5+  0.7-    000406 691  0.4-  0.8-    180811 F51  0.0   0.0
000402 691  0.0   0.3-    000406 691  0.6-  0.3-    180812 H21  0.3+  0.4-
000402 691  0.3+  0.7-    000406 691  0.6-  0.5-    180812 H21  0.1+  0.2-
000403 651  0.0   0.2-    000408 691  0.6-  0.5+    180812 H21  0.2+  0.1-
000403 651  0.8+  0.1-    000408 691  0.1+  0.3+    180812 F51  0.1-  0.0
000403 651  0.1+  0.4+    000408 691  0.4+  0.5+    180812 F51  0.0   0.2+
000403 691  0.0   0.5+    000412 691  0.2+  0.2-    180812 F51  0.0   0.0
000403 691  0.0   1.3+    000412 691  0.6+  0.4-    180812 F51  0.0   0.0

Ephemeris:
2000 GB2                 a,e,i = 2.47, 0.60, 7                   q = 0.9961
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 07 13    21 20 58.3 -05 46 24   1.7498  2.6686   148.3    11.6    22.9
...
2018 07 28    21 07 19.3 -06 31 10   1.5851  2.5770   164.2     6.2    22.3
...
2018 08 05    20 58 11.2 -07 10 40   1.5212  2.5265   170.1     4.0    22.1
...
2018 08 11    20 50 49.9 -07 46 25   1.4850  2.4880   169.2     4.4    22.0
2018 08 12    20 49 35.1 -07 52 48   1.4800  2.4815   168.6     4.6    22.0
2018 08 13    20 48 20.1 -07 59 18   1.4753  2.4750   167.8     5.0    22.0
...
2018 08 19    20 40 51.9 -08 40 13   1.4527  2.4356   162.0     7.4    22.1
...
2018 08 27    20 31 21.3 -09 38 10   1.4377  2.3821   152.9    11.1    22.2
...
2018 09 11    20 16 56.7 -11 26 53   1.4503  2.2788   135.3    18.1    22.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P72



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