[Iaude] MPEC J116: 2019 BF5 [a=1.68,e=0.74,i=24.5,H=21.5]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun May 9 10:01:23 EDT 2021


M.P.E.C. 2021-J116                                  Issued 2021 May 9, 14:00 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

                                    2019 BF5                                    


                           Revision to MPEC 2019-C19                            

Additional Observations:
     K19B05F  C2021 04 06.23562304 54 47.971+22 56 54.38         23.43GVEJ116T14
     K19B05F  C2021 04 06.23851904 54 49.078+22 56 52.74         23.77GVEJ116T14
     K19B05F  C2021 04 06.24134804 54 50.151+22 56 51.05         23.52GVEJ116T14
     K19B05F  C2021 04 06.24420604 54 51.247+22 56 49.45         23.71GVEJ116T14
     K19B05F KC2021 04 07.26905805 01 20.024+22 46 52.07         23.88GVEJ116T12

Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + CCD.
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observer H. Januszewski.
    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
210406 T14 0.08+ 0.02+    210407 T12 0.08+ 0.02+    MPO508626   +0.08 days

Orbital elements:
2019 BF5                                            PHA, Earth MOID = 0.0224 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 332.33009              (2000.0)            P               Q
n   0.45253541     Peri.   68.71597     +0.87150159     -0.38223492
a   1.6802259      Node   312.26119     +0.12272202     +0.77652859
e   0.7393019      Incl.   24.52609     +0.47478868     +0.50089901
P   2.18           H   21.5           G   0.15           U   2
Residuals in seconds of arc
190128 I41  0.9-  0.1-    190203 L11  0.2+  0.2+    190206 160  0.1-  0.2+
190128 I41  0.5+  0.9+    190203 L11  0.1+  0.1-    190206 160  0.4+  0.4+
190128 I41  0.4+  0.0     190203 L11  0.1-  0.5-    190206 204  0.0   0.1-
190128 I41  1.1+  0.5+    190203 L11  0.5-  0.1+    190206 204  0.0   0.0
190203 T08  0.8-  0.3-    190203 L11  0.2+  0.1+    190206 K33  0.5+  0.7+
190203 T08  0.0   0.1-    190203 L11  0.0   0.0     190206 K33  0.4+  0.4-
190203 T08  0.0   0.1-    190203 L11  0.0   0.1-    190207 K33  0.0   1.2+
190203 T08  0.1-  0.3-    190203 L11  0.1+  0.1+    190207 K33 (0.3+  1.6+)
190203 T08  0.1+  0.0     190203 L11  0.0   0.5+    190207 K33  0.0   0.1-
190203 T08  0.1+  0.1-    190203 L11  0.0   0.2-    190207 474  0.1+  0.2+
190203 T08  0.0   0.1-    190204 G40  0.1-  0.4-    190207 474  0.0   0.0
190203 T08  0.1+  0.3-    190204 G40  0.4+  0.1-    190207 474  0.1-  0.3-
190203 T08  0.0   0.1-    190204 G40  0.2-  0.2-    190207 474  0.4+  1.1+
190203 T08  0.1+  0.1-    190204 G40  0.1-  0.2-    190207 033  0.1+  0.1+
190203 T08  0.1-  0.3-    190204 H21  0.2+  0.0     190207 033  0.0   0.2+
190203 T08  0.1+  0.0     190204 H21  0.2+  0.1+    190207 033  0.0   0.1+
190203 T08  0.1+  0.2-    190204 H21  0.2+  0.1+    190207 033  0.0   0.1-
190203 T08  0.0   0.2-    190204 F52  0.5-  0.5-    190207 033  0.3+  0.1+
190203 T08  0.3+  0.1-    190204 F52  0.0   0.1-    190207 K88  0.1-  0.0
190203 T08  0.1+  0.1-    190204 F52  0.7+  0.7+    190207 K88  0.1-  0.1+
190203 474  0.5+  0.4-    190204 474  0.1-  0.4+    190207 K88  0.2-  0.0
190203 474  0.3+  0.1-    190204 474  0.1-  0.0     190207 K88  0.1-  0.0
190203 474  0.0   0.4-    190204 474  0.5+  0.1+    190207 K88  0.0   0.2+
190203 J08 (0.0   1.7-)   190204 474  0.3+  0.0     190207 J04  0.0   0.1-
190203 J08 (0.9-  2.2-)   190204 474  0.0   0.3+    190207 J04  0.0   0.1-
190203 J08  1.1-  1.3-    190204 C47  0.2-  0.3-    190207 J04  0.1+  0.1-
190203 L01  0.3-  0.0     190204 C47  0.0   0.2-    190208 I52  0.2-  0.2+
190203 L01  0.1-  0.1-    190204 C47  0.1+  0.3-    190208 I52  0.3+  0.1-
190203 L01  0.1-  0.2-    190204 C47  0.0   0.0     190208 I52  0.2+  0.0
190203 L01  0.1-  0.1-    190204 C47  0.2+  0.1-    190208 I52  0.2-  0.1+
190203 L01  0.1-  0.1-    190204 C47  0.0   0.1-    190208 V01  0.5-  0.2+
190203 L01  0.0   0.1-    190205 160  1.1+  1.5+    190208 V01  0.0   0.4-
190203 L01  0.0   0.2-    190205 160  0.2+  0.2+    190208 V01  0.5-  0.2-
190203 L01  0.0   0.2-    190205 160  0.8-  1.0+    190208 V01  0.5-  0.3-
190203 C23  0.1-  0.1-    190206 160 (1.6+  1.3+)   190209 703  0.7+  0.1+
190203 C23  0.0   0.2-    190206 160  1.0+  0.6+    190209 703  0.1-  0.3-
190203 C23  0.0   0.2-    190206 160  0.1+  0.7+    190209 703  1.3-  0.1-
190203 C23  0.0   0.1+    190206 T08  0.2+  0.3+    190209 703  0.1-  0.1-
190203 L01  0.1+  0.1-    190206 T08  0.3+  0.0     190211 I52  0.2+  0.9-
190203 L01  0.1+  0.2-    190206 T08  0.0   0.3-    190211 I52  0.2+  0.1-
190203 L01  0.0   0.2-    190206 T08  0.0   0.1+    190211 I52  0.0   0.2+
190203 L01  0.0   0.1-    190206 033  0.2+  0.1-    190211 I52  0.4-  0.7+
190203 L01  0.1+  0.1-    190206 033  0.1+  0.2-    190212 G96  0.1-  0.0
190203 L01  0.1+  0.1-    190206 033  0.1-  0.1-    190212 G96  0.3-  0.1+
190203 L01  0.1+  0.2-    190206 L01  0.0   0.2-    190212 G96  0.4+  0.2+
190203 L01  0.0   0.1-    190206 L01  0.1-  0.2-    190212 G96  0.2+  0.1-
190203 L01  0.1+  0.1-    190206 L01  0.1+  0.1-    190301 711  0.6-  0.1-
190203 L01  0.0   0.3-    190206 L01  0.1+  0.1+    190301 711  0.4-  0.1-
190203 094  0.3+  0.2+    190206 L01  0.1-  0.0     190301 711  0.3-  0.1+
190203 094  0.4+  0.2+    190206 595  0.3+  0.3-    190405 T12  0.1-  0.1+
190203 094  0.2+  0.1-    190206 595  0.0   0.4-    210406 T14  0.0   0.0
190203 094  0.6+  0.4+    190206 595  0.2-  0.0     210406 T14  0.1+  0.0
190203 L11  0.1+  0.2-    190206 595  0.0   0.5+    210406 T14  0.0   0.0
190203 L11  0.3+  0.4+    190206 160  0.4-  0.2-    210406 T14  0.0   0.0
190203 L11  0.2+  0.0     190206 204  0.0   0.0     210407 T12  0.1-  0.0

Ephemeris:
2019 BF5                 a,e,i = 1.68, 0.74, 25                  q = 0.4380
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 09    05 11 56.7 +22 28 29   1.1207  1.0635    59.8    54.5    23.9
...
2021 04 24    06 27 56.4 +19 03 05   1.3392  1.2569    62.9    45.4    24.4
...
2021 05 02    06 59 10.5 +17 04 15   1.4741  1.3532    62.8    41.5    24.6
...
2021 05 08    07 19 35.1 +15 37 07   1.5800  1.4224    62.1    38.8    24.8
2021 05 09    07 22 46.7 +15 22 51   1.5979  1.4337    62.0    38.4    24.8
2021 05 10    07 25 55.1 +15 08 40   1.6159  1.4450    61.8    38.0    24.9
...
2021 05 16    07 43 43.6 +13 45 14   1.7247  1.5110    60.6    35.6    25.0
...
2021 05 24    08 05 09.6 +11 58 25   1.8713  1.5954    58.5    32.8    25.3
...
2021 06 08    08 40 09.0 +08 49 50   2.1446  1.7434    53.5    27.9    25.6

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-J116




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