[Iaude] MPEC M34: 2018 BZ2 [a=2.17,e=0.60,i=11.8,H=20.4]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Jun 19 11:01:21 EDT 2020


M.P.E.C. 2020-M34                                 Issued 2020 June 19, 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2018 BZ2                                    


                           Revision to MPEC 2018-B86                            

Additional Observations:
     K18B02Z KC2020 06 16.39316016 40 19.755-17 46 32.85         23.87GVEM034T14
     K18B02Z  C2020 06 16.39639116 40 19.473-17 46 31.66         23.79GVEM034T14
     K18B02Z  C2020 06 16.39942016 40 19.213-17 46 30.43         23.88GVEM034T14
     K18B02Z  C2020 06 16.40245016 40 18.946-17 46 29.37         23.46GVEM034T14
     K18B02Z  C2020 06 17.34723216 38 59.410-17 40 31.06         23.73GVEM034T14
     K18B02Z  C2020 06 17.35026216 38 59.150-17 40 29.98         23.67GVEM034T14
     K18B02Z  C2020 06 17.35329116 38 58.891-17 40 28.88         23.85GVEM034T14

Observer details:
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observer C. Wipper.  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
200616 T14 0.04- 0.00-    200617 T14 0.04- 0.00-    MPO473494   -0.15 days

Orbital elements:
2018 BZ2                                            PHA, Earth MOID = 0.0466 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M 283.58041              (2000.0)            P               Q
n   0.30765262     Peri.  150.57946     +0.81242707     -0.55318326
a   2.1731797      Node   244.15601     +0.48692839     +0.81753537
e   0.5987295      Incl.   11.81388     +0.32072261     +0.16007561
P   3.20           H   20.4           G   0.15           U   1
Residuals in seconds of arc
171212 F51  0.1-  0.1+    180119 J95  0.1+  0.6-    180204 I52  0.2+  0.3+
171212 F51  0.2+  0.0     180120 I52  0.2-  0.2+    180204 807  0.3+  0.5+
180118 G96  0.0   0.0     180120 I52  0.0   0.6+    180204 807  0.1-  0.5+
180118 G96  0.0   0.0     180120 I52  0.6-  0.2+    180204 807  0.1+  0.3+
180118 G96  0.0   0.3-    180120 I52  0.0   0.7+    180204 691  0.7-  0.0
180118 G96  0.1-  0.2-    180120 G40  0.6+  0.4-    180204 691  0.8-  0.4+
180118 H01  0.1+  0.2+    180120 G40  0.6+  0.3-    180204 691  0.1-  0.4+
180118 H01  0.0   0.1+    180123 V06  0.1+  0.3+    180205 691  0.2-  0.3+
180118 H01  0.1+  0.1+    180123 V06  0.0   0.2+    180205 691  0.1+  0.1-
180118 H01  0.0   0.2+    180123 V06  0.3-  0.4+    180206 691  0.4+  0.0
180118 G96  0.0   0.4+    180123 V06  0.1+  0.2+    180206 691  0.3-  0.3+
180118 G96  0.2-  0.1-    180123 807  0.1-  0.2-    180206 691  0.3-  0.3-
180118 G96  0.0   0.2+    180123 807  0.0   0.0     180207 691  0.3-  0.1+
180118 G96  0.0   0.0     180123 807  0.1+  0.2+    180207 691  0.2+  0.3-
180118 J95  0.8+  0.1+    180123 I52  0.0   0.2-    180207 691  0.4-  0.0
180118 J95  0.3-  0.5-    180123 I52  0.1-  0.1+    180208 711  0.2-  0.3+
180118 J95  0.5-  0.1+    180123 I52  0.1+  0.1+    180208 711  0.0   0.1-
180118 K51  0.6+  0.2+    180123 I52  0.0   0.0     180208 711  0.1-  0.1+
180118 K51  0.3+  0.5+    180124 691  0.6+  0.2-    180213 474  0.3+  0.6+
180118 K51  0.5-  0.3+    180124 691  0.4-  0.4+    180213 474  0.1+  0.5+
180118 587  0.7-  0.2-    180124 691  0.9-  0.9+    180213 474  0.1+  0.0
180118 587  0.4-  0.6-    180124 691  0.1-  0.4+    180213 474 (0.7-  1.8-)
180118 587  0.7-  0.6-    180125 I52  0.5-  0.2-    180219 807  0.0   0.4+
180119 H01  0.1-  0.0     180125 I52  0.4+  0.3+    180219 807  0.3+  0.2-
180119 H01  0.1+  0.1+    180125 I52  0.2-  0.3+    180219 807  0.0   0.3-
180119 I52  0.2-  0.2+    180125 I52  0.2-  0.2-    180220 807  0.2+  0.1+
180119 I52  0.1-  0.0     180126 H21  0.4-  0.4-    180220 807  0.0   0.1+
180119 I52  0.1-  0.3+    180126 H21  0.7-  0.4-    180220 807  0.1+  0.3-
180119 I52  0.4-  0.1-    180126 H21  0.7-  0.4-    180303 695  0.2-  0.4+
180119 H01  0.0   0.2+    180127 I52  0.8-  0.2+    180303 695  0.0   0.6+
180119 H01  0.1+  0.1+    180127 I52  0.2+  0.1-    180303 695  0.1-  0.3+
180119 033  0.2-  0.2+    180127 I52  0.1+  0.3-    200616 T14  0.0   0.0
180119 033  0.2-  0.0     180203 807  0.1+  0.1+    200616 T14  0.0   0.0
180119 033  0.1+  0.1+    180203 807  0.0   0.3+    200616 T14  0.0   0.0
180119 033  0.0   0.2+    180203 807  0.0   0.1+    200616 T14  0.0   0.0
180119 033  0.2+  0.1+    180204 I52  0.3-  0.5-    200617 T14  0.0   0.1+
180119 033  0.0   0.2-    180204 I52  0.1+  0.2-    200617 T14  0.0   0.0
180119 J95  1.1+  0.6-    180204 I52  0.1+  0.0     200617 T14  0.0   0.0

Ephemeris:
2018 BZ2                 a,e,i = 2.17, 0.60, 12                  q = 0.8720
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 05 20    17 16 43.9 -20 26 43   1.6837  2.6539   159.2     7.8    24.2
...
2020 06 04    16 57 51.4 -19 03 40   1.5589  2.5719   176.0     1.6    23.6
...
2020 06 12    16 46 33.9 -18 14 15   1.5193  2.5263   170.4     3.8    23.7
...
2020 06 18    16 38 04.6 -17 36 21   1.5020  2.4912   162.9     6.9    23.8
2020 06 19    16 36 41.2 -17 30 03   1.5001  2.4853   161.7     7.4    23.8
2020 06 20    16 35 18.4 -17 23 47   1.4985  2.4794   160.4     7.9    23.8
...
2020 06 26    16 27 19.9 -16 46 54   1.4946  2.4433   152.8    11.0    23.9
...
2020 07 04    16 17 52.0 -16 01 22   1.5033  2.3940   142.9    14.8    24.0
...
2020 07 19    16 05 09.4 -14 54 20   1.5539  2.2978   125.5    21.1    24.2

A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-M34




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