[Iaude] MPEC M13: 2021 TG4 [a=2.20,e=0.58,i=7.8,H=20.06]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Jun 18 10:10:08 EDT 2022


M.P.E.C. 2022-M13                                 Issued 2022 June 18, 14:08 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

                                    2021 TG4                                    


                           Revision to MPEC 2021-T150                           

Additional Observations:
     K21T04G KC2011 02 04.43949910 59 42.108+22 29 31.38         22.23GVEM013F51
     K21T04G KC2011 02 10.56335210 53 59.719+23 42 13.79         21.84GVEM013F51
     K21T04G  C2011 02 14.40355910 49 30.529+24 29 58.63         21.61GVEM013F51
     K21T04G  C2011 02 14.41718210 49 29.445+24 30 09.41         21.11GVEM013F51
     K21T04G KC2011 05 15.26747209 32 08.346+21 33 03.82         21.59GVEM013F51
     K21T04G  C2011 05 29.26099 09 50 39.217+17 00 58.12         21.5 wLEM013F51
     K21T04G  C2011 05 29.26573 09 50 39.621+17 00 52.11         21.9 wLEM013F51
     K21T04G  C2011 05 29.27050 09 50 40.058+17 00 45.69         21.9 wLEM013F51
     K21T04G  C2011 05 29.27532 09 50 40.464+17 00 39.20         21.8 wLEM013F51
     K21T04G  C2011 10 17.29232721 59 39.649-24 59 31.56         21.28GVEM013F51
     K21T04G  C2011 10 17.31292221 59 41.918-24 59 00.17         21.18GVEM013F51

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
    Schultz, I. Smith, N. Primak, S. Watters, J. Thiel, T. Goggia.  Measurers
    S. Chastel, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk, P.-S. 1. S.
    Consortium.  1.8-m Ritchey-Chretien + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
110204 F51 0.03+ 0.01+    111017 F51 0.04+ 0.02+    E2021-VA5   -0.00 days

Orbital elements:
2021 TG4                                            PHA, Earth MOID = 0.0101 AU
Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                  Veres                   
M 139.34096              (2000.0)            P               Q                  
n   0.30178925     Peri.  216.53786     -0.11748208     +0.98813908             
a   2.2012374      Node    46.94618     -0.87607552     -0.05623364             
e   0.5842629      Incl.    7.77787     -0.46764264     -0.14289483             
P   3.27           H   20.06          G   0.15           U   2                  
Residuals in seconds of arc
110204 F51  0.1+  0.0     210901 F52  0.1+  0.1-    211003 F51  0.1+  0.0
110210 F51  0.1-  0.1+    210901 F52  0.1+  0.3+    211003 F51  0.0   0.2-
110214 F51  0.1-  0.1-    210928 F52  0.0   0.0     211006 F51  0.0   0.1-
110214 F51  0.1-  0.3+    210928 F52  0.1-  0.0     211006 F51  0.2+  0.2+
110515 F51  0.2+  0.2-    210928 F52  0.1+  0.1+    211006 F51  0.3+  0.3+
110529 F51  0.2+  0.3-    210928 F52  0.1+  0.1+    211007 F51  0.2-  0.2-
110529 F51  0.0   0.0     211002 F52  0.0   0.2-    211007 F51  0.1-  0.8+
110529 F51  0.2+  0.1-    211002 F52  0.1+  0.1-    211025 291  0.3-  0.1-
110529 F51  0.0   0.2-    211002 F52  0.0   0.1-    211025 291  0.4-  0.0
111017 F51  0.2+  0.2+    211002 F51  0.0   0.0     211025 291  0.2+  0.3-
111017 F51  0.2-  0.0     211002 F51  0.0   0.2-    211105 291  0.2-  0.0
210901 F52  0.0   0.1-    211003 F51  0.0   0.1-    211105 291  0.1+  0.2-

Ephemeris:
2021 TG4                 a,e,i = 2.20, 0.58, 8                   q = 0.9151
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2022 05 19    03 49 55.0 +21 31 21   4.1564  3.1463     2.7     0.9    25.8
...
2022 06 03    04 10 06.4 +22 39 34   4.1955  3.1927     7.5     2.4    26.0
...
2022 06 11    04 20 44.7 +23 11 58   4.1992  3.2160    12.6     3.9    26.1
...
2022 06 17    04 28 38.0 +23 34 29   4.1942  3.2328    16.5     5.1    26.1
2022 06 18    04 29 56.4 +23 38 05   4.1928  3.2355    17.1     5.3    26.2
2022 06 19    04 31 14.6 +23 41 39   4.1911  3.2383    17.8     5.5    26.2
...
2022 06 25    04 39 00.3 +24 02 10   4.1773  3.2543    21.7     6.6    26.2
...
2022 07 03    04 49 10.1 +24 27 17   4.1488  3.2749    26.9     8.1    26.3
...
2022 07 18    05 07 28.5 +25 07 55   4.0653  3.3108    37.0    10.6    26.4

A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-M13




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