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  • MPEC 2021-C33 : 2018 AE2

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    M.P.E.C. 2021-C33                              Issued 2021 February 6, 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
    
                                    2018 AE2                                 
    
    
                               Revision to MPEC 2018-A46                            
    
    Additional Observations:
         K18A02E KC2021 01 11.21406423 47 08.823+46 22 16.35         24.38GVEC033T14
         K18A02E KC2021 02 06.22667500 38 22.176+45 15 03.37         24.48GVEC033T14
    
    Observer details:
    T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observers L. Wells, C. Crowder.
        Measurer D. J. Tholen.  3.6-m f/4.1 reflector + MegaCam.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    210111 T14 0.00- 0.03-    210206 T14 0.01- 0.02-    MPO438048   -0.12 days
    
    Orbital elements:
    2018 AE2                                            PHA, Earth MOID = 0.0163 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 308.18604              (2000.0)            P               Q
    n   0.30169344     Peri.  192.07850     -0.97243198     -0.09358174
    a   2.2017034      Node   338.64183     +0.23073620     -0.51859095
    e   0.5460887      Incl.   35.90580     -0.03371726     -0.84988580
    P   3.27           H   19.9           G   0.15           U   0
    Residuals in seconds of arc
    180105 G96  0.1-  0.2-    180120 T12  0.0   0.0     180204 703  0.1-  0.1-
    180105 G96  0.6+  0.2-    180120 T12  0.0   0.0     180205 703  0.2-  0.1+
    180105 G96  0.6-  0.0     180122 I52  0.4-  0.9-    180205 703  0.3+  0.6-
    180105 G96  0.1+  0.2+    180122 I52  0.1-  0.8+    180205 703  0.2-  0.8-
    180105 G96  0.5-  0.8-    180124 I52  0.0   0.2+    180205 703  0.3-  0.0
    180105 G96  0.2+  0.4+    180124 I52  0.3-  0.2-    180206 691  0.2+  0.4+
    180105 G96  0.2-  0.2+    180124 I52  0.1-  0.1+    180206 691  0.3+  0.3+
    180106 I52  0.9+  0.0     180124 I52  0.3+  0.0     180206 711  0.1-  0.5+
    180106 I52  1.0+  0.2+    180125 703  1.3-  0.8+    180206 711  0.2+  0.2+
    180106 G96  0.3-  1.0-    180125 703  0.2+  0.1-    180206 711  0.2+  0.2+
    180106 I52  1.4+  0.2-    180125 703  0.3-  0.2-    180206 691  0.3+  0.5+
    180106 G96  0.3-  0.6-    180127 I52  0.0   0.3+    180211 I52  0.4-  0.3+
    180106 G96  0.0   0.2-    180127 I52  0.1-  0.1+    180211 I52  0.1+  0.7+
    180111 926  0.9+  0.5+    180127 I52  0.1+  0.3+    180211 I52  0.0   0.1+
    180111 926  0.0   0.6+    180127 I52  0.2+  0.4-    180211 I52  0.2+  0.1+
    180111 926  0.3+  0.0     180128 I52  0.7-  0.0     180214 A17  0.1-  0.2-
    180113 711  0.0   0.9+    180128 I52  0.4+  0.0     180214 A17  0.1-  0.1-
    180113 711  0.0   0.8+    180128 I52  0.7+  0.5+    180214 A17  0.0   0.1-
    180113 711  0.0   0.7+    180131 T08  0.2+  0.9-    180226 807  0.0   0.1-
    180117 J04  0.0   0.0     180131 T08  0.4+  0.2-    180226 807  0.0   0.2-
    180117 J04  0.0   0.1-    180131 T08  0.4-  1.2-    180226 807  0.0   0.0
    180117 J04  0.1+  0.1-    180131 T08  1.2-  0.4-    180226 807  0.0   0.0
    180118 J04  0.1+  0.2-    180204 703  0.2+  0.3-    180226 807  0.0   0.2-
    180118 J04  0.1+  0.1-    180204 703  0.3+  0.8-    210111 T14  0.0   0.1-
    180120 T12  0.0   0.0     180204 703  0.4+  0.7+    210206 T14  0.0   0.1+
    
    Ephemeris:
    2018 AE2                 a,e,i = 2.20, 0.55, 36                  q = 0.9994
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 01 07    23 41 08.5 +46 47 14   1.6017  1.9071    91.9    31.0    23.7
    ...
    2021 01 22    00 05 31.0 +45 37 42   1.6234  1.7991    83.4    32.9    23.6
    ...
    2021 01 30    00 21 46.8 +45 20 48   1.6301  1.7403    79.3    33.8    23.6
    ...
    2021 02 05    00 35 25.7 +45 15 29   1.6324  1.6958    76.3    34.4    23.5
    2021 02 06    00 37 49.5 +45 15 06   1.6326  1.6883    75.8    34.5    23.5
    2021 02 07    00 40 15.5 +45 14 52   1.6326  1.6809    75.4    34.6    23.5
    ...
    2021 02 13    00 55 35.9 +45 15 52   1.6316  1.6359    72.6    35.2    23.5
    ...
    2021 02 21    01 18 04.2 +45 21 39   1.6263  1.5756    69.2    35.9    23.4
    ...
    2021 03 08    02 06 33.6 +45 30 44   1.6044  1.4624    63.5    37.4    23.3
    
    A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-C33
    


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