[Iaude] MPEC H73: 2007 HW3 [a=2.61,e=0.64,i=15.1,H=20.54]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Thu Apr 25 10:10:57 EDT 2024


M.P.E.C. 2024-H73                                Issued 2024 April 25, 14:09 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

                                    2007 HW3                                    


                           Revision to MPEC 2007-H19                            

Additional Observations:
     K07H03W  C2024 03 19.61067516 02 28.874-19 18 53.11         21.55GVEH073F52
     K07H03W  C2024 03 19.61985016 02 30.585-19 18 47.26         21.76GVEH073F52
     K07H03W  C2024 03 19.62901616 02 32.330-19 18 41.87         22.32GVEH073F52
     K07H03W  C2024 03 19.63816416 02 34.025-19 18 36.21         21.92GVEH073F52
     K07H03W KC2024 04 21.47567018 32 03.534-02 36 51.37         20.18GVEH073I52
     K07H03W KC2024 04 21.47769318 32 04.276-02 36 44.46         20.61GVEH073I52
     K07H03W KC2024 04 21.47972718 32 05.021-02 36 37.58         20.73GVEH073I52
     K07H03W KC2024 04 21.48175818 32 05.802-02 36 30.06         20.51GVEH073I52
     K07H03W KC2024 04 21.48378518 32 06.529-02 36 23.11         19.74GVEH073I52

Observer details:
F52 Pan-STARRS 2, 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
    Measurers T. Beuden, V. F. Carvajal, 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 two decimals in degrees), reference and Delta-T
240319 F52 0.24+ 0.00+    240421 I52 0.48+ 0.03+    E2024-A74   +0.20 days

Orbital elements:
2007 HW3                                                 Earth MOID = 0.1918 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 342.42481              (2000.0)            P               Q                  
n   0.23346710     Peri.   87.67040     +0.33700322     +0.93605426             
a   2.6120747      Node   202.84151     -0.93369164     +0.31846184             
e   0.6361633      Incl.   15.10400     -0.12103204     +0.14961442             
P   4.22           H   20.54          G   0.15           U   0                  
Residuals in seconds of arc
070418 G96  0.6+  0.1-    070422 G96  0.1+  0.1+    070711 J95  0.3-  0.1-
070418 G96  0.1-  0.2-    070422 G96  0.2+  0.0     070731 H55  0.3-  0.2+
070418 G96  0.1-  0.4-    070422 448  0.0   0.0     070731 H55  0.4+  0.5+
070418 G96  0.3-  0.1+    070422 448  0.8+  0.2+    070731 H55  0.1-  0.0
070418 G96  0.6-  0.3+    070422 448  0.7+  0.4-    070823 H55  0.1+  0.5-
070418 G96  0.1-  0.4-    070423 691  0.6+  0.3-    070901 H55  0.3-  0.1+
070418 G96  0.1+  0.1-    070423 691  0.2+  0.3+    070901 H55  0.6-  0.4-
070418 G96  0.0   0.2-    070427 448  0.6-  0.2+    070901 H55  0.4-  0.1+
070419 J95  0.3+  0.0     070427 448  0.2+  0.0     070919 B15  0.3+  0.1+
070419 J95  0.4-  0.6-    070427 448  0.5-  0.7+    070919 B15  0.4+  0.3+
070419 649  0.2-  0.1+    070509 649  1.0-  0.2-    070919 B15  0.3+  0.1+
070419 649  0.2+  0.1-    070509 649  0.1+  0.0     071012 704  0.0   0.0
070419 649  0.1+  0.1+    070509 649  0.2+  0.1-    071012 704  0.4-  1.7+
070419 649  0.4-  0.1+    070509 649  0.3+  0.1+    071012 704  0.7+  0.6+
070419 G96  0.1+  0.2-    070518 176  0.2-  1.3+    071012 704  0.6+  0.5-
070419 G96  0.7+  0.4+    070518 176  0.1-  0.4+    240319 F52  0.1-  0.1-
070419 G96  0.3+  0.2+    070518 176  0.3-  0.0     240319 F52  0.1-  0.1+
070419 G96  0.1-  0.2-    070518 176  0.3-  0.4-    240319 F52  0.3+  0.2-
070419 G96  0.1+  0.0     070604 H55  0.5+  0.3+    240319 F52  0.1+  0.3-
070419 G96  0.3-  0.0     070604 H55  0.0   0.7-    240421 I52  0.0   0.1-
070419 G96  0.0   0.1+    070604 H55  0.1-  0.3-    240421 I52  0.1-  0.1-
070422 J95  0.3-  0.3-    070615 H55  0.3-  0.3+    240421 I52  0.2-  0.3-
070422 J95  0.0   0.1-    070615 H55  0.2-  0.6+    240421 I52  0.2+  0.2+
070422 J95  0.1-  0.1+    070615 H55  0.0   0.1-    240421 I52  0.1-  0.2+
070422 G96  0.3-  0.0     070711 J95  0.2+  0.5+
070422 G96  0.1-  0.2+    070711 J95  0.3-  0.4-

Ephemeris:
2007 HW3                 a,e,i = 2.61, 0.64, 15                  q = 0.9504
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 03 26    16 24 08.2 -17 55 45   0.6425  1.4191   118.2    38.3    21.9
...
2024 04 10    17 27 31.9 -11 36 36   0.4721  1.2913   117.8    43.4    21.1
...
2024 04 18    18 10 50.5 -05 45 57   0.4050  1.2261   114.0    48.4    20.8
...
2024 04 24    18 48 21.3 -00 06 28   0.3689  1.1794   109.2    53.7    20.7
2024 04 25    18 55 00.8 +00 55 36   0.3642  1.1718   108.2    54.6    20.7
2024 04 26    19 01 46.7 +01 58 57   0.3599  1.1643   107.2    55.7    20.7
...
2024 05 02    19 44 19.7 +08 35 46   0.3428  1.1210   100.3    62.2    20.7
...
2024 05 10    20 44 02.2 +17 09 59   0.3428  1.0685    90.4    70.9    20.8
...
2024 05 25    22 30 07.2 +28 09 30   0.3980  0.9918    75.6    81.5    21.4

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-H73





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