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  • MPEC 2017-F162: 1997 GC32

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    M.P.E.C. 2017-F162                               Issued 2017 Mar. 28, 12:52 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
    
                                       1997 GC32
    
                               Revision to MPEC 1997-J11
    
    Additional Observations:
         J97G32C  C2017 03 27.45456 12 31 34.908-01 25 40.82         20.9 wLEF162F51
         J97G32C  C2017 03 27.46696 12 31 33.834-01 25 32.20         20.9 wLEF162F51
         J97G32C  C2017 03 27.47940 12 31 32.757-01 25 23.59         20.9 wLEF162F51
         J97G32C  C2017 03 27.49179 12 31 31.693-01 25 15.00         21.1 wLEF162F51
         J97G32C KC2017 03 27.85591112 31 01.33 -01 20 55.9          20.8 GUEF162K91
         J97G32C KC2017 03 27.86253012 31 00.76 -01 20 51.2          21.0 GUEF162K91
         J97G32C KC2017 03 27.86694112 31 00.37 -01 20 48.1          21.0 GUEF162K91
         J97G32C |C2017 03 28.15782 12 30 35.74 -01 17 25.0          20.8 VuEF162807
         J97G32C |C2017 03 28.16164 12 30 35.38 -01 17 22.2          20.9 VuEF162807
         J97G32C |C2017 03 28.16546 12 30 35.05 -01 17 20.1          20.9 VuEF162807
    
    Observer details:
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
        T. Lowe, A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel,
        L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat,
        C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    K91 Sutherland-LCOGT A.  Observers T. Lister, S. Greenstreet, E. Gomez.
        Measurer T. Lister.  1.0-m f/8 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
    170327 F51 4.02+ 1.22-    170328 807 4.02+ 1.21-    MPC 30293    -13 day
    
    Orbital elements:
    1997 GC32                                                Earth MOID = 0.0706 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5  (M-h)          MPC
    M 280.02811              (2000.0)            P               Q
    n   0.34023058     Peri.  150.11857     +0.84225771     +0.53905234
    a   2.0321409      Node   177.24718     -0.51277457     +0.80396593
    e   0.6530870      Incl.    5.91819     -0.16632555     +0.25112022
    P   2.90           H   18.3           G   0.15           U   2
    Residuals in seconds of arc
    970414 704  1.1+  1.2+    970510 557  0.2-  0.6-    970517 046  0.7+  0.3+
    970414 704  0.8+  0.7+    970512 046  0.1+  0.0     970517 046  0.1-  0.1+
    970414 704  0.6+  0.2+    970512 046  0.1+  0.1+    970517 046  0.9+  0.0
    970414 704  0.9+  0.2+    970512 046  0.1+  0.1-    970517 118  0.0   0.1-
    970415 704  1.2+  0.9+    970512 046  0.0   0.3+    970517 118  0.1-  0.4-
    970415 704  2.1+  0.4-    970512 046  0.1-  0.0     970518 118  0.1+  0.0
    970415 704  1.0+  0.2-    970512 118  0.1+  0.3-    970518 118  0.4-  0.1-
    970415 704  0.7+  0.5+    970512 118  0.5+  0.2-    970518 118  0.4-  0.0
    970416 704  1.6+  0.3+    970512 118  0.1-  0.2+    970518 046  0.4-  0.1-
    970416 704  0.7+  0.2-    970514 118  0.6+  0.3+    970518 046  0.0   0.3-
    970421 658  0.8-  0.2+    970514 118  1.2+  0.3+    970518 046  0.2+  0.0
    970421 658  1.1-  0.3+    970514 118  0.9+  0.6+    970518 046  0.2-  0.3-
    970421 658  0.5-  0.2+    970514 118  0.7+  0.0     970518 557  0.2-  0.2-
    970422 658  0.4-  0.0     970514 118  1.0+  0.1+    970518 557  0.5-  0.3+
    970422 658  0.4+  0.2+    970514 118  0.5+  0.1+    970520 118  0.3+  0.0
    970422 658  0.1-  0.2+    970514 118  0.7+  0.0     970520 118  0.5+  0.3-
    970501 587  1.0-  0.1-    970515 118  0.2-  0.1-    970520 118  0.8+  0.2-
    970501 587  1.0-  0.5+    970515 118  0.5-  0.4-    970528 599  1.1+  1.0-
    970501 587  1.5-  0.2-    970515 118  0.1+  0.3-    970528 599  1.4+  0.3-
    970502 104  0.6+  1.4+    970515 118  0.2-  0.6-    970528 599  1.7-  0.7+
    970502 104  1.0+  0.5+    970515 118  0.2-  0.1+    170327 F51  0.0   0.1-
    970502 104  1.1-  0.1+    970517 557  0.2+  0.0     170327 F51  0.0   0.1-
    970502 557  0.7-  0.5+    970517 557  0.1-  0.1-    170327 F51  0.0   0.2-
    970502 557  0.5-  0.2-    970517 557  0.2+  0.2-    170327 F51  0.1+  0.2-
    970502 557  1.1-  0.3-    970517 118  0.1+  0.3+    170327 K91  0.3-  0.4-
    970502 658  1.2-  0.0     970517 118  0.3+  0.1+    170327 K91  0.3-  0.3-
    970502 658  1.2-  0.2-    970517 118  0.3-  0.1+    170327 K91  0.4-  0.3-
    970502 658  0.7-  0.5-    970517 118  0.0   0.2+    170328 807  0.2+  0.0
    970510 557  0.5-  0.8-    970517 118  0.3-  0.5+    170328 807  0.2-  0.1+
    970510 557  0.2-  0.5-    970517 118  0.1-  0.3+    170328 807  0.2-  0.5-
    
    Ephemeris:
    1997 GC32                a,e,i = 2.03, 0.65, 6                   q = 0.7050
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 02 26    13 01 34.8 -05 45 18   1.6692  2.5166   140.9    14.4    22.2
    ...
    2017 03 13    12 49 29.8 -03 56 19   1.4692  2.4249   159.4     8.3    21.6
    ...
    2017 03 21    12 40 13.1 -02 37 31   1.3864  2.3736   169.9     4.2    21.3
    ...
    2017 03 27    12 32 13.1 -01 30 54   1.3367  2.3340   177.5     1.1    20.9
    2017 03 28    12 30 49.0 -01 19 19   1.3295  2.3273   178.1     0.8    20.9
    2017 03 29    12 29 24.1 -01 07 38   1.3225  2.3205   177.8     0.9    20.9
    ...
    2017 04 04    12 20 39.7 +00 04 04   1.2876  2.2796   170.3     4.2    21.0
    ...
    2017 04 12    12 08 49.5 +01 40 14   1.2579  2.2235   159.2     9.2    21.1
    ...
    2017 04 27    11 48 44.1 +04 21 31   1.2486  2.1134   138.9    18.2    21.3
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-F162
    

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    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)