[Iaude] MPEC T19: 2020 TW3 [a=2.09,e=0.69,i=10.8,H=22.49]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Oct 4 16:16:16 EDT 2023


M.P.E.C. 2023-T19                               Issued 2023 October 4, 20:14 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

                                    2020 TW3                                    


                           Revision to MPEC 2020-T124                           

Additional Observations:
     K20T03W  C2023 10 03.51180601 39 33.139-02 38 01.92         20.72iXET019F52
     K20T03W  C2023 10 03.54005001 39 30.688-02 38 05.24         21.20iXET019F52
     K20T03W  C2023 10 03.55414001 39 29.469-02 38 06.91         21.08iXET019F52
     K20T03W  C2023 10 04.17834701 38 41.632-02 39 28.66         20.9 GVET019H01
     K20T03W  C2023 10 04.18131301 38 41.358-02 39 28.97         21.0 GVET019H01
     K20T03W  C2023 10 04.19196201 38 40.431-02 39 30.18         20.9 GVET019H01
     K20T03W  C2023 10 04.20360801 38 39.378-02 39 31.55         21.7 GVET019H01
     K20T03W KC2023 10 04.26654901 38 33.767-02 39 39.10         21.79GVET019I52
     K20T03W KC2023 10 04.26933001 38 33.511-02 39 39.31         21.30GVET019I52
     K20T03W KC2023 10 04.27555201 38 32.960-02 39 40.00         20.94GVET019I52
     K20T03W KC2023 10 04.28155001 38 32.399-02 39 40.86         20.61GVET019I52

Observer details:
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Bulger, J.
    Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
    Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk.  1.8-m Ritchey-
    Chretien + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  Measurers
    E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
    Leonard, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    prime focus + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
231003 F52   13+    6+    231004 I52   13+    6+    E2023-P78   +6.67 days

Orbital elements:
2020 TW3                                                 Earth MOID = 0.0219 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 328.88817              (2000.0)            P               Q                  
n   0.32623959     Peri.   87.38484     -0.43159460     -0.89753828             
a   2.0898331      Node    28.72805     +0.73488893     -0.40788406             
e   0.6855304      Incl.   10.82649     +0.52312940     -0.16749812             
P   3.02           H   22.49          G   0.15           U   1                  
Residuals in seconds of arc
201011 703  0.9+  0.7-    201013 L01  0.5-  0.5-    201018 I52  0.2-  0.1-
201011 703  0.6-  0.3+    201014 J04  0.1-  0.1-    201019 T08  0.4+  0.1+
201011 703  0.3-  0.7-    201014 J04  0.1+  0.1+    201019 T08  0.0   0.0
201011 703  0.4-  0.8-    201014 J04  0.1-  0.1+    201019 T08  0.1+  0.1-
201012 F51  0.0   0.0     201014 734  1.7+  0.3+    201019 T08  1.0-  0.4-
201012 F51  0.1-  0.1-    201014 734  1.7-  1.1-    201019 K61  0.5+  1.1-
201012 F51  0.1+  0.1+    201014 734  1.9-  1.5-    201019 K61  0.2+  1.4-
201012 F51  0.0   0.1-    201014 734  0.7-  0.7-    201019 K61  0.7+  0.8-
201012 203  0.4+  0.8+    201015 F51  0.3+  0.2+    201021 V01  0.3+  0.1-
201012 203  0.3-  0.1+    201015 F51 (1.0-  0.8-)   201021 V01  0.0   0.1-
201012 203  0.3-  0.1+    201015 F51  0.2+  0.2+    201021 V01  0.0   0.1-
201013 204  0.2-  0.3-    201016 I52  0.7+  0.1+    231003 F52  0.1-  0.2-
201013 204  0.1-  0.4-    201016 I52  0.1-  0.2+    231003 F52  0.1+  0.1-
201013 204  0.2-  0.1+    201016 I52  0.1-  0.1-    231003 F52  0.1+  0.0
201013 V01  0.5+  0.8+    201017 I52  0.0   0.1-    231004 H01  0.2+  0.2-
201013 V01  0.0   0.3+    201017 I52  0.2-  0.0     231004 H01  0.0   0.1-
201013 V01  0.1+  0.3+    201017 I52  0.1-  0.0     231004 H01  0.2+  0.0
201013 H36  0.0   0.7+    201017 B49  0.8-  0.4+    231004 H01  0.1-  0.1+
201013 H36  0.3+  0.6+    201017 B49  1.6-  0.5+    231004 I52  0.2-  0.2-
201013 H36  0.2+  0.3+    201017 B49  0.2-  0.3+    231004 I52  0.2-  0.0
201013 L01  0.4-  0.1+    201018 I52  0.1-  0.0     231004 I52  0.1+  0.1+
201013 L01  0.2-  0.2-    201018 I52  0.1-  0.4-    231004 I52  0.0   0.1-

Ephemeris:
2020 TW3                 a,e,i = 2.09, 0.69, 11                  q = 0.6572
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 04    01 45 33.0 -01 56 34   0.7463  1.6291   135.8    25.6    24.1
...
2023 09 19    01 48 30.9 -02 09 25   0.5224  1.4765   148.7    20.7    22.9
...
2023 09 27    01 45 38.7 -02 24 16   0.4143  1.3919   156.3    16.8    22.2
...
2023 10 03    01 40 12.2 -02 36 48   0.3385  1.3272   162.3    13.3    21.5
2023 10 04    01 38 55.0 -02 38 51   0.3263  1.3163   163.3    12.7    21.4
2023 10 05    01 37 30.0 -02 40 51   0.3142  1.3054   164.2    12.0    21.3
...
2023 10 11    01 25 27.1 -02 50 40   0.2445  1.2394   168.9     8.9    20.5
...
2023 10 19    00 52 38.5 -02 46 11   0.1593  1.1503   164.0    13.8    19.6
...
2023 11 03    19 44 35.7 +03 09 20   0.06368 0.9829    79.8    96.5    19.9

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-T19




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