[Iaude] MPEC B137: 2021 VL12 [a=0.78,e=0.30,i=4.3,H=22.62]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Jan 26 09:09:45 EST 2024


M.P.E.C. 2024-B137                             Issued 2024 January 26, 14:08 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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

                                   2021 VL12                                    


                           Revision to MPEC 2021-V311                           

Additional Observations:
     K21V12L  C2010 12 31.21684423 58 39.741+07 31 51.63         22.18GVEB137F51
     K21V12L  C2010 12 31.22969823 58 41.666+07 31 52.31         22.40GVEB137F51
     K21V12L  C2010 12 31.23577723 58 42.587+07 31 52.65         22.13GVEB137F51
     K21V12L  C2011 01 01.23676000 01 22.516+07 32 55.40         22.18GVEB137F51
     K21V12L 0C2023 12 12.27186822 34 34.134+00 25 00.20         23.24GVEB137T12
     K21V12L 0C2023 12 12.29390422 34 39.527+00 25 20.49         23.65GVEB137T12
     K21V12L 0C2023 12 12.30135622 34 41.346+00 25 27.40         23.57GVEB137T12
     K21V12L 0C2023 12 16.31332322 50 56.783+01 25 43.12         24.02GVEB137T12

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
101231 F51 36.5- 54.5-    231216 T12 23.0- 20.5-    MPO782776   +0.01 days

Orbital elements:
2021 VL12                                                Earth MOID = 0.0278 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  32.08349              (2000.0)            P               Q                  
n   1.43675501     Peri.  315.25217     -0.39209673     +0.91733760             
a   0.7778232      Node   291.55060     -0.82190065     -0.38299018             
e   0.2986740      Incl.    4.25038     -0.41320634     -0.10867499             
P   0.69           H   22.62          G   0.15           U   2                  
Residuals in seconds of arc
101231 F51  0.1+  0.0     211113 L01  0.1+  0.3-    211204 703  0.7+  0.4+
101231 F51  0.1-  0.1-    211114 W34  0.9-  0.8-    211205 I52  0.2+  0.0
101231 F51  0.0   0.0     211114 W34  0.6-  0.6-    211205 I52  0.2+  0.0
110101 F51  0.2+  0.1-    211114 W34  0.0   0.0     211205 I52  0.0   0.1-
211112 703  0.2-  0.2-    211114 C51 (1.1+  1.7-)   211205 I52  0.1-  0.0
211112 703  1.0+  0.1-    211114 C51  2.3+  0.6-    211207 G96  0.3-  0.1-
211112 703  0.2+  0.6+    211115 C51  0.2-  1.8+    211207 G96  0.0   0.2+
211112 I52  0.1-  0.2-    211115 I52  0.1+  0.3-    211207 G96  0.1+  0.1+
211112 I52  0.1+  0.3-    211115 I52  0.0   0.1-    211212 I52  0.7-  0.6+
211112 I52  0.5-  0.1+    211115 I52  0.1+  0.0     211212 I52  0.0   0.4-
211112 I52  0.2+  0.3+    211115 I52  0.1-  0.0     211212 I52  0.1+  0.8-
211112 H01  0.0   0.2-    211118 204  0.5+  0.2+    211212 I52  0.7+  0.4+
211112 H01  0.1-  0.1-    211118 204  0.5+  0.7+    211213 691  0.1+  0.2-
211112 H01  0.1-  0.1+    211129 I52  0.1-  0.5+    211213 691  0.5+  0.0
211112 H01  0.0   0.3+    211129 I52  0.3-  0.1-    211213 691  1.3-  0.8+
211112 587  0.1-  0.2-    211130 C95  0.1+  0.1-    211217 695  0.1+  0.0
211112 587  0.1-  0.0     211130 C95  0.2+  0.2-    211217 695  0.1+  0.1+
211112 587  0.0   0.1-    211130 C95  0.1-  0.1-    211217 695  0.0   0.1+
211112 204  0.3-  0.3+    211130 C95  0.3-  0.3+    211227 I52  0.4+  0.2-
211112 204  0.0   0.3+    211130 K19  0.7-  0.7+    211227 I52  0.0   0.1-
211113 I52  0.0   0.1-    211130 K19  0.1-  0.9+    211227 691  0.1-  0.1+
211113 I52  0.4-  0.6-    211130 K19  0.5+  0.3+    211227 691  0.2+  0.3+
211113 I52  0.1-  0.2-    211201 G58  0.6-  0.1-    220103 291  0.6-  0.9-
211113 I52  0.0   0.1-    211201 G58  0.1-  0.3+    220103 291  0.0   0.0
211113 L01  0.1-  0.4-    211201 G58  0.2-  0.2-    231212 T12  0.0   0.0
211113 L01  0.2-  0.0     211204 703  0.0   0.6-    231212 T12  0.0   0.1-
211113 L01  0.0   0.1-    211204 703  0.3+  0.0     231212 T12  0.1-  0.1-
211113 L01  0.0   0.1-    211204 703  1.0+  0.1+    231216 T12  0.1-  0.1-

Ephemeris:
2021 VL12                a,e,i = 0.78, 0.30, 4                   q = 0.5455
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 27    23 30 18.1 +03 51 26   0.4529  1.0100    80.2    73.6    23.5
...
2024 01 11    00 18 19.0 +06 43 48   0.4984  0.9976    77.0    73.9    23.7
...
2024 01 19    00 41 31.9 +08 02 34   0.5174  0.9831    74.7    74.8    23.8
...
2024 01 25    00 58 03.2 +08 55 25   0.5283  0.9686    72.7    76.0    23.8
2024 01 26    01 00 44.2 +09 03 40   0.5298  0.9659    72.3    76.2    23.8
2024 01 27    01 03 23.9 +09 11 45   0.5312  0.9631    72.0    76.4    23.8
...
2024 02 02    01 18 57.2 +09 56 37   0.5375  0.9445    69.7    78.1    23.9
...
2024 02 10    01 38 31.1 +10 45 55   0.5398  0.9152    66.3    80.9    23.9
...
2024 02 25    02 10 16.9 +11 36 14   0.5228  0.8467    58.8    89.3    24.0

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-B137





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