[Iaude] MPEC Q57: 2020 HP8 [a=1.91,e=0.52,i=8.0,H=20.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Aug 18 07:24:56 EDT 2020


M.P.E.C. 2020-Q57                               Issued 2020 August 18, 11:23 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

                                    2020 HP8                                    


                           Revision to MPEC 2020-H224                           

Additional Observations:
     K20H08P  C2012 02 24.51263310 50 44.527-08 34 16.74         21.38GVEQ057F51
     K20H08P  C2012 02 24.53608010 50 42.421-08 34 13.25         20.83GVEQ057F51
     K20H08P  C2012 02 28.37961910 44 57.941-08 22 34.24         22.16GVEQ057F51
     K20H08P  C2012 02 28.39234110 44 56.730-08 22 31.66         22.14GVEQ057F51
     K20H08P  C2012 03 21.31045110 08 55.242-05 50 52.26         21.89GVEQ057F51
     K20H08P  C2012 03 21.32437410 08 53.894-05 50 44.26         22.06GVEQ057F51
     K20H08P  C2012 03 21.33831110 08 52.524-05 50 36.34         22.04GVEQ057F51
     K20H08P  C2012 10 31.22820621 01 28.372-00 48 51.72         21.49GVEQ057F51
     K20H08P  C2012 10 31.23833321 01 31.134-00 48 45.12         21.54GVEQ057F51
     K20H08P  C2012 10 31.23931521 01 31.399-00 48 43.91         21.72GVEQ057F51
     K20H08P  C2015 12 06.48164404 21 36.294+25 54 01.11         22.51GVEQ057F51
     K20H08P  C2015 12 06.49529104 21 34.974+25 53 54.98         22.04GVEQ057F51
     K20H08P  C2015 12 10.34275304 15 51.838+25 26 44.10         22.15GVEQ057F51
     K20H08P  C2017 01 29.50308909 07 23.710+06 59 24.52         23.20GVEQ057F51
     K20H08P  C2017 01 29.51510309 07 22.747+06 59 27.07         23.76GVEQ057F51
     K20H08P  C2017 01 29.52706609 07 21.748+06 59 29.17         23.44GVEQ057F51
     K20H08P  C2020 08 17.57903703 35 17.42 +77 03 23.9          19.07oVEQ057T08
     K20H08P  C2020 08 17.58272303 35 10.84 +77 03 11.3          19.24oVEQ057T08
     K20H08P  C2020 08 17.58918803 35 00.08 +77 02 51.0          18.88oVEQ057T08
     K20H08P  C2020 08 17.60007403 34 41.13 +77 02 14.9          19.17oVEQ057T08
     K20H08P KC2020 08 17.98974 03 24 31.23 +76 38 21.1                VEQ057204
     K20H08P KC2020 08 17.99859 03 24 17.80 +76 37 51.3          19.4 GVEQ057204
     K20H08P KC2020 08 18.05039303 22 59.27 +76 34 48.8          19.5 GVEQ057I93
     K20H08P KC2020 08 18.05319103 22 54.93 +76 34 39.3          19.1 GVEQ057I93
     K20H08P  C2020 08 18.05476 03 22 50.10 +76 34 36.9          19.8 VVEQ057033
     K20H08P  C2020 08 18.05533 03 22 49.18 +76 34 35.0          20.1 VVEQ057033
     K20H08P  C2020 08 18.05591 03 22 48.39 +76 34 33.2          20.6 VVEQ057033
     K20H08P KC2020 08 18.05598903 22 50.65 +76 34 29.7          19.0 GVEQ057I93
     K20H08P  C2020 08 18.05670 03 22 46.94 +76 34 30.3          20.1 VVEQ057033
     K20H08P KC2020 08 18.10099303 21 39.17 +76 31 59.6          19.4 GVEQ057L01
     K20H08P KC2020 08 18.10254903 21 36.71 +76 31 54.7          19.5 GVEQ057L01
     K20H08P KC2020 08 18.10410403 21 34.31 +76 31 48.7          19.4 GVEQ057L01
     K20H08P KC2020 08 18.10552903 21 32.07 +76 31 43.7          19.4 GVEQ057L01

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, U.
    Laux, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
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.
I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, F. Hrzenjak, E.
    Pettarin.  Measurer E. Pettarin.  1.0-m f/2.9 reflector + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, H.
    Flewelling, A. Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector +
    CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
120224 F51 1.51- 0.80-    200818 L01 0.02- 0.02-    MPO546172   +0.01 days

Orbital elements:
2020 HP8                                                 Earth MOID = 0.0560 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 342.28930              (2000.0)            P               Q
n   0.37396483     Peri.   19.44054     +0.30858905     +0.94104978
a   1.9080169      Node   268.72721     -0.89002635     +0.23427104
e   0.5248585      Incl.    7.96635     -0.33559782     +0.24401309
P   2.64           H   20.2           G   0.15           U   0
Residuals in seconds of arc
120224 F51  0.1-  0.1+    200428 I52  0.1-  0.4-    200518 I52  0.2+  0.4-
120224 F51  0.2-  0.2+    200428 I52  0.2-  0.2-    200519 474  0.0   0.4-
120228 F51  0.0   0.1+    200428 I52  0.2+  0.2+    200519 474  0.0   0.2-
120228 F51  0.1+  0.0     200428 I52  0.2+  0.6+    200519 474  0.1+  0.1-
120321 F51  0.0   0.0     200428 474  0.5+  0.2-    200519 474  0.3+  0.1-
120321 F51  0.2+  0.1+    200428 474  0.1-  0.2-    200609 I52  0.2+  0.3-
120321 F51  0.0   0.1+    200428 474  0.0   0.3-    200609 I52  0.1+  0.5-
121031 F51  0.1+  0.2-    200428 474  0.2-  0.2-    200609 I52  0.3+  0.2+
121031 F51  0.1+  0.3-    200429 I52  0.2-  0.3+    200609 I52  0.4-  0.3+
121031 F51  0.0   0.3+    200429 I52  0.4+  0.1-    200622 474  0.5+  0.3-
151206 F51  0.0   0.3+    200429 I52  0.4+  0.4-    200622 474  0.0   0.2-
151206 F51  0.4-  0.1+    200429 I52  0.1-  0.5-    200622 474  0.2-  0.3-
151210 F51  0.6+  0.3-    200429 474  0.2+  0.2-    200622 474  0.1+  0.1-
170129 F51  0.0   0.4-    200429 474  0.4+  0.3-    200817 T08  0.1-  0.2+
170129 F51  0.2+  0.2-    200429 474  0.1+  0.1-    200817 T08  0.7-  0.4-
170129 F51  0.2-  0.4-    200429 474  0.2+  0.4-    200817 T08  0.7+  0.4+
200427 G96  0.0   0.1+    200503 I52  0.4+  0.5-    200817 T08  0.4+  0.2+
200427 G96  0.4-  0.2+    200503 I52  0.3+  0.1-    200817 204  0.4-  0.0
200427 G96  0.0   0.0     200503 I52  0.0   0.3-    200817 204  0.1+  0.2+
200427 G96  0.3-  0.1+    200504 I52  0.2+  0.4-    200818 I93  0.2+  0.0
200427 I52  0.1+  0.2+    200504 I52  0.2-  0.1-    200818 I93  0.0   0.0
200427 I52  0.2+  0.0     200504 I52  0.1+  0.6-    200818 033  0.1+  0.4-
200427 I52  0.4-  0.1-    200504 I52  0.2+  0.5-    200818 033  0.1-  0.3-
200427 I52  0.2-  0.4-    200511 I52  0.4+  0.7+    200818 033  0.3+  0.1-
200427 246  1.2-  1.0+    200511 I52  0.2+  0.8+    200818 I93  0.0   0.0
200427 246  0.6-  0.9+    200511 I52  0.5+  0.9+    200818 033  0.5-  0.2-
200427 246  1.1-  0.7+    200517 474  0.1-  0.1-    200818 L01  0.0   0.2-
200427 246  1.3-  1.0+    200517 474  0.0   0.2-    200818 L01  0.2-  0.4+
200427 246  0.3-  0.7+    200517 474  0.0   0.1-    200818 L01  0.1-  0.1-
200427 L01  0.3-  0.2-    200518 I52  0.1+  0.2-    200818 L01  0.2-  0.0
200427 L01  0.1+  0.3-    200518 I52  0.1+  0.6-
200427 L01  0.2+  0.5+    200518 I52  0.1-  0.0

Ephemeris:
2020 HP8                 a,e,i = 1.91, 0.52, 8                   q = 0.9066
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 07 19    11 01 26.8 +24 44 58   0.1589  0.9068    43.1   130.0    21.7
...
2020 08 03    10 19 35.5 +59 55 44   0.1229  0.9322    45.2   129.4    21.1
...
2020 08 11    07 52 13.1 +77 04 27   0.1301  0.9612    62.9   110.2    19.9
...
2020 08 17    03 51 52.6 +77 34 34   0.1443  0.9890    76.6    95.2    19.4
2020 08 18    03 24 05.2 +76 37 49   0.1472  0.9941    78.7    92.9    19.3
2020 08 19    03 01 07.5 +75 34 03   0.1501  0.9993    80.9    90.6    19.3
...
2020 08 25    01 44 21.5 +68 33 12   0.1693  1.0327    92.7    77.9    19.1
...
2020 09 02    01 04 09.4 +60 03 26   0.1978  1.0824   106.7    63.3    19.1
...
2020 09 17    00 30 28.9 +46 59 32   0.2589  1.1866   129.5    40.8    19.2

A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-Q57




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