• MPC Preparation (Info)

  • MPEC 2021-G177 : 2021 GB8

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    M.P.E.C. 2021-G177                               Issued 2021 April 12, 20:50 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
    
                                    2021 GB8                                 
    
    
    Observations:
         K21G08B* C2021 04 08.37494216 36 11.63 +21 10 07.3          18.95iUEG177I41
         K21G08B  C2021 04 08.37528916 36 10.65 +21 09 58.0          18.95iUEG177I41
         K21G08B  C2021 04 08.40048616 35 05.56 +20 59 45.3          19.10RUEG177I41
         K21G08B  C2021 04 08.40083316 35 04.62 +20 59 36.6          19.10RUEG177I41
         K21G08B  C2021 04 08.40094916 35 04.34 +20 59 34.2          19.19RUEG177I41
         K21G08B  C2021 04 08.40129616 35 03.39 +20 59 24.7          19.19RUEG177I41
         K21G08B  C2021 04 09.43223 15 59 59.26 +14 20 03.3          20.2 GVEG177703
         K21G08B  C2021 04 09.43753 15 59 48.79 +14 18 09.9          19.9 GVEG177703
         K21G08B  C2021 04 09.44282 15 59 38.15 +14 16 16.1          18.9 GVEG177703
         K21G08B  C2021 04 12.44089614 59 41.92 +01 17 40.7          19.59GVEG177G96
         K21G08B  C2021 04 12.44510014 59 37.90 +01 16 55.0          19.54GVEG177G96
         K21G08B  C2021 04 12.45436214 59 29.06 +01 15 14.4          19.47GVEG177G96
         K21G08B  C2021 04 12.45856514 59 25.05 +01 14 29.0                VEG177G96
         K21G08B  C2021 04 12.46792314 59 16.24 +01 12 47.7          19.38GVEG177G96
         K21G08B  C2021 04 12.46821414 59 15.96 +01 12 44.4          19.73GVEG177G96
         K21G08B  C2021 04 12.46850414 59 15.68 +01 12 41.2          19.72GVEG177G96
         K21G08B  C2021 04 12.46879314 59 15.41 +01 12 38.2          19.62GVEG177G96
         K21G08B  C2021 04 12.46908714 59 15.17 +01 12 34.9          19.53GVEG177G96
         K21G08B  C2021 04 12.46937614 59 14.86 +01 12 31.6          19.84GVEG177G96
         K21G08B  C2021 04 12.46966614 59 14.62 +01 12 28.8          19.59GVEG177G96
         K21G08B  C2021 04 12.47107214 59 13.28 +01 12 13.5          19.40GVEG177G96
         K21G08B  C2021 04 12.47124814 59 13.12 +01 12 11.7          19.22GVEG177G96
         K21G08B  C2021 04 12.47142314 59 12.94 +01 12 09.5          19.43GVEG177G96
         K21G08B  C2021 04 12.48203814 59 03.04 +01 10 14.7          20.07GVEG177G96
         K21G08B  C2021 04 12.48221314 59 02.86 +01 10 13.1          19.61GVEG177G96
         K21G08B  C2021 04 12.48238714 59 02.72 +01 10 11.1          19.55GVEG177G96
    
    Observer details:
    703 Catalina Sky Survey.  Observer T. A. Pruyne.  Measurers E. J. Christensen,
        B. Gray, D. Rankin, F. C. Shelly.  0.68-m Schmidt + 10K CCD.
    G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers E. J. Christensen,
        G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
        Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
        Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    I41 Palomar Mountain--ZTF.  Observers B. T. Bolin, V. Bhalerao, Y.-L. Cheng,
        C. M. Copperwheat, K. P. Deshmukh, C.-Y. Hsu, Z.-Y. Lin, J. Purdum, S.
        Royle, K. Sharma, C. Zhai, Z. T. F. Collaboration.  Measurers B. T. Bolin,
        D. A. Duev, H.-W. Lin, F. J. Masci.  1.2-m f/2.4 Schmidt.
    
    Orbital elements:
    2021 GB8                                                 Earth MOID = 0.0091 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Pike                    
    M 319.20032              (2000.0)            P               Q                  
    n   0.87281488     Peri.   88.24517     -0.53149408     -0.84687400             
    a   1.0843961      Node    33.88061     +0.76388181     -0.48830019             
    e   0.1803718      Incl.    1.83447     +0.36605823     -0.21063557             
    P   1.13           H   27.19          G   0.15           U   7                  
    Residuals in seconds of arc
    210408 I41  0.2+  0.4+    210412 G96  0.8+  0.1-    210412 G96  0.1-  0.3-
    210408 I41  1.0-  0.5-    210412 G96  0.7+  0.0-    210412 G96  0.3+  0.0+
    210408 I41  0.7+  0.2+    210412 G96  0.4+  0.1-    210412 G96  0.1+  0.1-
    210408 I41  0.1+  0.0+    210412 G96  0.0+  0.1+    210412 G96  0.1+  0.0+
    210408 I41  0.4+  0.4+    210412 G96  0.2+  0.1+    210412 G96  0.2-  0.2-
    210408 I41  0.4-  0.6-    210412 G96  0.1+  0.1-    210412 G96  0.3-  0.4-
    210409 703  0.9-  0.7+    210412 G96  0.0-  0.1-    210412 G96  0.5-  0.1-
    210409 703  0.2-  0.3+    210412 G96  0.1-  0.0-    210412 G96  0.2-  0.3-
    210409 703 (2.5-  0.7-)   210412 G96  0.5+  0.1-
    
    Ephemeris:
    2021 GB8                 a,e,i = 1.08, 0.18, 2                   q = 0.8888
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 03 13    00 43 38.3 +23 53 17   0.06801 0.9370    32.1   145.7    28.9
    ...
    2021 03 28    23 49 54.8 +33 07 47   0.02716 0.9750    31.4   147.7    27.3
    ...
    2021 04 05    19 46 45.8 +40 58 24   0.01148 0.9977    76.5   102.9    21.3
    ...
    2021 04 11    15 23 00.9 +06 30 49   0.01623 1.0155   145.5    34.0    19.7
    2021 04 12    15 06 08.2 +02 45 45   0.01829 1.0185   151.5    28.0    19.8
    2021 04 13    14 52 47.5 -00 13 30   0.02050 1.0215   156.5    23.0    19.9
    ...
    2021 04 19    14 09 50.2 -09 37 25   0.03540 1.0396   174.3     5.5    20.5
    ...
    2021 04 27    13 48 41.5 -14 01 35   0.05762 1.0637   173.0     6.6    21.6
    ...
    2021 05 12    13 38 08.2 -16 47 37   0.1054  1.1079   156.8    21.0    23.6
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-G177
    


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