[Iaude] MPEC A100: 2017 AM4 [a=1.42,e=0.27,i=60.3,H=19.0,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sun Jan 6 19:39:17 EST 2019


M.P.E.C. 2019-A100                               Issued 2019 Jan. 7, 00:34 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


                                   2017 AM4
 
                           Revision to MPEC 2017-A38
 
Additional Observations:
     K17A04M KC2019 01 05.43424113 04 44.39 +30 30 37.8          22.1 VuEA100H21
     K17A04M KC2019 01 05.43991813 04 45.24 +30 30 50.3          22.4 VuEA100H21
     K17A04M KC2019 01 05.44681213 04 46.27 +30 31 05.8          22.4 VuEA100H21
     K17A04M KC2019 01 06.43391413 07 16.97 +31 06 33.3          22.2 VuEA100H21
     K17A04M KC2019 01 06.44263513 07 18.26 +31 06 52.0          21.8 VuEA100H21
     K17A04M KC2019 01 06.45237113 07 19.75 +31 07 13.4          22.0 VuEA100H21
 
Observer details:
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190105 H21 18.9+  0.1-    190106 H21 19.1+  0.3-    MPO409574   -0.016 day
 
Orbital elements:
2017 AM4                                            PHA, Earth MOID = 0.0229 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 295.15723              (2000.0)            P               Q
n   0.58276949     Peri.  176.54964     +0.60615622     +0.42211924
a   1.4195091      Node   129.08423     -0.74892778     +0.58823740
e   0.2689051      Incl.   60.27549     -0.26773460     -0.68977685
P   1.69           H   19.0           G   0.15           U   3
Residuals in seconds of arc
170103 F51  0.2+  0.1-    170119 K88  0.7+  0.0     170202 691  1.2-  1.3+
170103 F51  0.2+  0.2-    170119 K88  0.2+  0.2-    170203 F51  0.1+  0.0
170103 F51  0.2+  0.1-    170119 K88  0.5+  0.1-    170203 F51  0.1+  0.0
170103 F51  0.2+  0.1-    170122 K88  0.1+  0.6-    170203 F51  0.1+  0.0
170104 W86  0.2+  0.0     170122 K88  0.1-  0.4+    170203 F51  0.2+  0.1-
170104 W86  0.1-  0.0     170122 K88  0.1-  0.4-    170216 691  0.5+  0.8-
170104 W86  0.1-  0.3+    170124 J04  0.1-  0.1-    170216 691  0.1-  0.9-
170104 W86  0.1+  0.3+    170124 J04  0.0   0.0     170221 691  0.8-  1.5+
170104 W86  0.1+  0.0     170124 J04  0.1+  0.1-    170221 691  0.5-  0.2-
170104 W86  0.0   0.1+    170125 H21  0.0   0.5-    170221 691  0.1-  0.5+
170104 W86  0.1-  0.1+    170125 H21  0.2+  0.4-    170304 291  0.0   0.9-
170104 W86  0.2+  0.1-    170125 H21  0.1-  0.3-    170304 291  0.2+  0.1-
170104 568  0.1+  0.1-    170126 F51  0.1+  0.1+    170304 291  0.1+  0.0
170104 568  0.1+  0.0     170126 F51  0.2+  0.0     170315 695  0.2+  0.1-
170104 568  0.1+  0.1-    170126 F51  0.2+  0.0     170315 695  0.3+  0.2-
170105 926  1.2+  0.4-    170126 F51  0.2+  0.0     170315 695  0.2+  0.2-
170105 926  0.3+  0.4-    170129 691  0.0   0.2-    170330 291  0.0   0.4-
170105 926  0.2+  0.1-    170129 691  0.2-  0.0     170330 291  0.4+  0.3-
170106 807  0.5+  0.2+    170129 691  0.3-  0.6+    170330 291  0.3+  0.3-
170106 807  1.0+  0.5+    170130 691  0.0   0.1+    170420 291  0.9-  0.9+
170106 807  0.2+  0.0     170130 691  0.1-  0.1+    170420 291  0.4-  0.2-
170109 695  0.2+  0.1+    170130 691  0.2+  0.3-    190105 H21  0.1+  1.0-
170109 695  0.2-  0.0     170131 691  0.4-  0.0     190105 H21  0.1+  0.6-
170109 695  0.0   0.2+    170131 691  0.4-  0.2+    190105 H21  0.1+  0.1+
170118 291  0.5+  0.0     170131 691  0.6-  0.2-    190106 H21  0.1+  0.8-
170118 291  0.0   0.4+    170202 691  0.1+  0.2-    190106 H21  0.2-  1.2-
170118 291  0.2+  0.1-    170202 691  0.8-  0.6+    190106 H21  0.1+  1.0-

Ephemeris:
2017 AM4                 a,e,i = 1.42, 0.27, 60                  q = 1.0378
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 12 08    12 00 00.8 +17 52 49   1.5810  1.7606    83.2    33.7    22.6
...
2018 12 23    12 32 34.1 +23 31 07   1.3806  1.7369    93.0    34.4    22.3
...
2018 12 31    12 51 17.9 +27 26 44   1.2848  1.7220    97.9    34.4    22.2
...
2019 01 06    13 06 10.2 +30 50 52   1.2204  1.7099   101.2    34.3    22.0
2019 01 07    13 08 43.6 +31 27 10   1.2104  1.7078   101.7    34.3    22.0
2019 01 08    13 11 18.5 +32 04 05   1.2007  1.7057   102.2    34.3    22.0
...
2019 01 14    13 27 21.1 +35 58 20   1.1472  1.6924   104.9    34.2    21.9
...
2019 01 22    13 50 29.0 +41 39 25   1.0907  1.6735   107.4    34.1    21.7
...
2019 02 06    14 41 01.9 +52 58 57   1.0351  1.6341   107.9    35.0    21.6

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-A100



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