• MPC Preparation (Info)

  • MPEC 2021-F06 : 2016 EH1

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    M.P.E.C. 2021-F06                                Issued 2021 March 16, 15:00 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 EH1                                 
    
    
                               Revision to MPEC 2016-E29                            
    
    Additional Observations:
         K16E01H 2C2021 03 14.22311916 34 31.101+15 48 01.75               VEF006J04
         K16E01H 2C2021 03 14.22802316 34 31.287+15 48 24.17         20.7 GVEF006J04
         K16E01H 2C2021 03 16.19421516 36 14.313+18 14 50.30         21.7 GVEF006J04
         K16E01H 2C2021 03 16.20249916 36 14.564+18 15 27.02         21.4 GVEF006J04
         K16E01H 2C2021 03 16.21088816 36 14.864+18 16 04.98         21.6 GVEF006J04
    
    Observer details:
    J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers M.
        Micheli, D. Koschny, L. Conversi, R. Kresken, A. Knofel, M. Busch, E.
        Schwab.  1.0-m f/4.4 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
    210314 J04 0.10- 0.14-    210316 J04 0.11- 0.15-    MPO380413   -0.07 days
    
    Orbital elements:
    2016 EH1                                                 Earth MOID = 0.0090 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M  41.25731              (2000.0)            P               Q
    n   1.19104012     Peri.  231.19574     +0.89633667     -0.43031913
    a   0.8814245      Node   153.77218     +0.44317998     +0.87669045
    e   0.2402938      Incl.   13.98446     -0.01311817     +0.21503326
    P   0.83           H   22.6           G   0.15           U   4
    Residuals in seconds of arc
    160224 F51  0.3+  0.1+    160302 511  0.2-  0.1-    160311 926  0.2+  0.1-
    160224 F51  0.2+  0.2+    160303 Z21  0.1-  0.2-    160311 926  0.5+  0.1+
    160301 T05 (2.1+  0.4+)   160303 Z21  0.2+  0.1-    160311 926  0.5+  0.2+
    160301 T05  0.5-  0.1-    160303 Z21  0.2+  0.1-    160311 926  0.3+  0.2-
    160301 T05  0.3+  0.0     160303 Z21  0.0   0.2-    160311 926  0.1-  0.2+
    160301 T05  0.0   0.1+    160303 Z21  0.1-  0.2-    160311 926  0.3-  0.1+
    160302 T05  0.2-  0.2-    160303 Z21  0.1+  0.1+    160313 A17  0.3+  0.3+
    160302 T05  0.1-  0.3+    160303 Z21  0.0   0.0     160313 A17  0.1+  0.1-
    160302 T05  0.7+  0.3+    160303 Z21  0.2+  0.0     160313 A17  0.1+  0.2-
    160302 T05  0.2-  0.9-    160303 Z21  0.1-  0.1+    160318 204  0.1+  0.1-
    160302 511  0.2-  0.0     160303 Z21  0.1-  0.1+    160318 204  0.1+  0.2-
    160302 511  0.2-  0.1-    160303 I89  0.1-  0.6-    160318 204  0.1-  0.4-
    160302 511  0.0   0.3-    160303 I89  0.5-  0.2+    160318 H21  0.3-  0.1-
    160302 511  0.1-  0.3-    160303 703  0.1+  0.1-    160318 H21  0.4-  0.4+
    160302 511  0.2-  0.1+    160303 703  0.3+  1.1-    160318 H21  0.2-  0.0
    160302 511  0.3-  0.0     160303 703  0.8-  0.5-    160318 H21  0.2-  0.2+
    160302 511  0.2-  0.1-    160303 926  0.0   0.1-    160320 926  0.1-  0.1-
    160302 511  0.2-  0.1-    160303 926  0.0   0.0     160320 926  0.4-  0.4+
    160302 511  0.1-  0.1-    160303 926  0.3+  0.2-    160320 926  0.1+  0.1+
    160302 511  0.2-  0.0     160303 900  0.0   0.2-    160327 926  0.1-  0.1+
    160302 511  0.2-  0.1-    160303 900  0.2+  0.4-    160327 926  0.1+  0.1+
    160302 511  0.1-  0.1-    160303 900  0.2-  0.0     160327 926  0.1+  0.2+
    160302 511  0.3-  0.0     160306 H21  0.1+  0.1+    160409 H21  0.0   0.3+
    160302 511  0.1-  0.0     160306 H21  0.2+  0.1+    160409 H21  0.1-  0.2+
    160302 511  0.2-  0.0     160306 H21  0.0   0.1+    160409 H21  0.0   0.1+
    160302 511  0.2-  0.0     160306 H21  0.1+  0.1-    160413 H21  0.3+  0.8+
    160302 511  0.2-  0.0     160306 H21  0.2+  0.1-    160413 H21  0.5+  0.6+
    160302 511  0.1-  0.1-    160306 H21  0.0   0.0     160413 H21  0.0   0.9+
    160302 511  0.2-  0.1+    160306 H21  0.0   0.1-    210314 J04  0.2+  0.2-
    160302 511  0.2-  0.0     160310 926  0.7-  0.1+    210314 J04  0.1+  0.3+
    160302 511  0.1-  0.1+    160310 926  0.1+  0.1-    210316 J04  0.3+  0.5+
    160302 511  0.2-  0.1+    160310 926  0.3-  0.2-    210316 J04  0.1-  0.1-
    160302 511  0.1-  0.0     160310 587  0.3-  0.4+    210316 J04  0.3+  0.0
    160302 511  0.1-  0.0     160310 587  0.1-  0.5+
    160302 511  0.3-  0.1-    160310 587  0.0   0.2+
    
    Ephemeris:
    2016 EH1                 a,e,i = 0.88, 0.24, 14                  q = 0.6696
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 02 14    15 55 05.5 -14 54 20   0.2362  0.9970    85.5    80.9    22.3
    ...
    2021 03 01    16 18 36.2 +00 11 17   0.2163  1.0401    97.2    70.9    21.8
    ...
    2021 03 09    16 29 02.9 +09 25 43   0.2086  1.0581   102.6    66.3    21.7
    ...
    2021 03 15    16 35 12.4 +16 45 53   0.2051  1.0692   106.0    63.4    21.6
    2021 03 16    16 36 03.7 +18 00 25   0.2047  1.0708   106.5    63.0    21.5
    2021 03 17    16 36 51.7 +19 15 07   0.2044  1.0724   106.9    62.6    21.5
    ...
    2021 03 23    16 40 26.6 +26 42 54   0.2040  1.0807   109.1    60.6    21.5
    ...
    2021 03 31    16 41 28.0 +36 19 27   0.2073  1.0886   110.4    59.3    21.5
    ...
    2021 04 15    16 27 42.7 +51 41 56   0.2230  1.0930   108.0    60.8    21.7
    
    A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-F06
    


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