[Iaude] MPEC T32: 2020 HV4 [a=1.33,e=0.35,i=10.9,H=23.35]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Oct 5 10:12:41 EDT 2023


M.P.E.C. 2023-T32                               Issued 2023 October 5, 14:11 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 HV4                                    


                           Revision to MPEC 2020-H134                           

Additional Observations:
     K20H04V  C2023 10 03.34563 02 23 23.72 -24 53 42.1          21.1 GVET032I52
     K20H04V  C2023 10 03.35161 02 23 21.70 -24 53 21.3          22.5 GVET032I52
     K20H04V  C2023 10 03.36019 02 23 18.74 -24 52 52.0          22.4 GVET032I52
     K20H04V KC2023 10 04.33332602 18 08.777-23 56 26.12         21.93GVET032I52
     K20H04V KC2023 10 04.34455302 18 05.029-23 55 47.10         21.10GVET032I52
     K20H04V KC2023 10 04.35389502 18 01.962-23 55 14.84         21.10GVET032I52
     K20H04V KC2023 10 04.36323102 17 58.859-23 54 42.48         21.06GVET032I52

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  Measurers
    B. Gray, D. Rankin, F. C. Shelly, 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, R. L. Seaman, K. W. Wierzchos.
    1.0-m f/2.0 prime focus + CCD, 1.0-m prime focus + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
231003 I52 0.07+ 0.09+    231004 I52 0.08+ 0.09+    E2023-P50   +0.03 days

Orbital elements:
2020 HV4                                                 Earth MOID = 0.0126 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M  36.49471              (2000.0)            P               Q                  
n   0.64108115     Peri.  238.97942     +0.19878827     +0.97154766             
a   1.3320710      Node    43.10066     -0.82264383     +0.23682291             
e   0.3525332      Incl.   10.86170     -0.53267284     -0.00317011             
P   1.54           H   23.35          G   0.15           U   1                  
Residuals in seconds of arc
200322 F51  0.1-  0.0     200423 L01  0.1+  0.1-    200425 703  0.6-  1.4-
200322 F51  0.1-  0.0     200423 L01  0.4+  0.0     200425 703  0.2+  0.3-
200322 F51  0.1+  0.0     200423 L01  0.2+  0.2+    200425 703  0.1-  0.2+
200322 F51  0.0   0.0     200423 L01  0.1+  0.0     200425 033  0.0   0.0
200410 F52  0.1-  0.2+    200423 246  0.1+  0.7-    200425 033  0.0   0.1-
200410 F52  0.3+  0.0     200423 A17  0.8+  0.4-    200425 033  0.2-  0.1-
200410 F52  0.3+  0.2+    200423 246  0.2-  0.2+    200426 033  0.1-  0.1-
200411 F51  0.1-  0.1+    200423 246  0.1-  0.3+    200426 033  0.2-  0.0
200411 F51  0.1-  0.1-    200423 246  0.3+  0.4-    200426 033  0.0   0.1-
200411 F51  0.2-  0.1-    200423 246  0.5+  0.9-    200426 246  0.2-  0.2-
200412 F51  0.1+  0.3+    200423 246  0.6+  0.1+    200426 246  0.3-  0.3-
200412 F51  0.0   0.3-    200423 246  0.1-  0.0     200426 246  0.4+  0.3-
200412 F51  0.2+  0.5-    200423 246  0.4+  0.4-    200426 246  0.5-  0.2+
200412 F51  0.1+  0.0     200423 K87  0.5+  0.3-    200426 246  1.0+  0.1-
200423 703  0.0   0.6+    200423 A17  0.3-  0.0     200426 246  0.2+  0.1+
200423 703  0.6+  0.3+    200423 K87  0.2-  0.7-    200502 I52  0.3+  0.3+
200423 703  0.2-  0.1+    200423 K87  0.9-  0.8-    200502 I52  0.4-  0.6+
200423 703  0.6+  0.2-    200423 I93  0.1-  0.1+    200502 I52  0.3+  0.6+
200423 I52  0.1-  0.1+    200423 I93  0.1-  0.5-    231003 I52  0.1-  0.4+
200423 I52  0.0   0.3+    200423 I93  0.0   0.0     231003 I52  0.3+  0.5+
200423 I52  0.1-  0.1-    200423 106  0.6-  0.3-    231003 I52  0.1-  0.0
200423 I52  0.1+  0.1-    200423 106  0.4-  0.5-    231004 I52  0.2+  0.3-
200423 A17  0.8-  0.3-    200423 106  0.1-  1.0-    231004 I52  0.3-  0.0
200423 L01  0.3-  0.0     200424 204  0.1+  0.1-    231004 I52  0.0   0.1-
200423 033  0.2-  0.3-    200424 204  0.2+  0.2+    231004 I52  0.2-  0.0
200423 033  0.3-  0.1-    200424 204  0.3+  0.2+
200423 033  0.4-  0.0     200425 703  0.3+  0.2-

Ephemeris:
2020 HV4                 a,e,i = 1.33, 0.35, 11                  q = 0.8625
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 05    05 56 37.1 -44 46 44   0.1732  1.0050    83.9    86.2    22.6
...
2023 09 20    03 51 35.5 -37 07 55   0.1709  1.0842   113.5    58.1    21.8
...
2023 09 28    02 54 57.3 -30 03 30   0.1813  1.1285   130.5    42.5    21.6
...
2023 10 04    02 19 53.5 -24 15 09   0.1964  1.1621   142.3    31.8    21.5
2023 10 05    02 14 41.9 -23 17 25   0.1995  1.1678   144.1    30.2    21.5
2023 10 06    02 09 41.3 -22 20 08   0.2029  1.1734   145.8    28.6    21.5
...
2023 10 12    01 43 24.0 -16 51 47   0.2270  1.2070   154.4    20.9    21.6
...
2023 10 20    01 17 40.2 -10 32 07   0.2697  1.2514   158.9    16.7    21.9
...
2023 11 04    00 52 05.8 -01 50 08   0.3786  1.3323   149.6    22.1    22.9

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-T32




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