[Iaude] MPEC J19: 2019 HN [a=1.86,e=0.64,i=34.8,H=20.51]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Thu May 2 10:12:46 EDT 2024


M.P.E.C. 2024-J19                                   Issued 2024 May 2, 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

                                    2019 HN                                     


                           Revision to MPEC 2019-H54                            

Additional Observations:
     K19H00N KC2024 04 10.18998 08 43 09.37 -20 25 26.5                VEJ019291
     K19H00N KC2024 04 10.19969 08 43 09.23 -20 25 05.2                VEJ019291
     K19H00N 0C2024 04 17.32150108 41 54.050-16 00 55.27         22.92GVEJ019T12
     K19H00N KC2024 05 02.13324 08 47 37.76 -06 53 56.4          22.6 RVEJ019291
     K19H00N KC2024 05 02.17251 08 47 39.39 -06 52 31.3          22.9 RVEJ019291

Observer details:
291 LPL/Spacewatch II.  Observers R. A. Mastaler, T. H. Bressi.  1.8-m f/2.7
    reflector + 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
240410 291  0.2-  0.3-    240502 291  0.2-  0.4-    E2024-A65   +0.04 days

Orbital elements:
2019 HN                                             PHA, Earth MOID = 0.0092 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 314.30794              (2000.0)            P               Q                  
n   0.38741870     Peri.   81.69735     +0.24584288     +0.93315616             
a   1.8635841      Node   207.39250     -0.94761141     +0.28830305             
e   0.6356398      Incl.   34.75226     +0.20394583     +0.21471125             
P   2.54           H   20.51          G   0.15           U   2                  
Residuals in seconds of arc
190423 F51  0.1-  0.1-    190427 291  0.7-  0.7+    190509 691  0.2+  0.2-
190423 F51  0.1-  0.1-    190428 I52  0.6+  0.2-    190514 695  0.0   0.0
190423 F51  0.1-  0.1-    190428 I52  0.1-  0.3-    190514 695  0.0   0.3+
190423 807  0.1+  0.2-    190428 I52  0.2-  0.2-    190514 291  0.1+  0.0
190423 807  0.2+  0.3-    190428 I52  0.1-  0.4-    190514 695  0.3-  0.4+
190423 807  0.0   0.1+    190429 691  0.1-  0.2-    190514 291  0.0   0.2-
190425 H36  0.6+  0.3-    190429 691  0.5-  0.3+    190514 291  0.0   0.2-
190425 H36  0.3+  0.4+    190429 691  0.3-  0.2-    190515 291  1.1+  0.4+
190425 H36  0.0   0.2+    190501 691  0.5-  0.1+    190515 291  0.3+  2.4-
190425 K87  0.8+  0.9-    190501 691  0.4-  0.2-    190524 291  0.2-  0.0
190425 K87  0.6+  0.7-    190504 I52  0.0   0.6-    190524 291  0.0   0.2+
190425 K87  0.6+  0.6-    190504 I52  0.2-  0.9-    190918 695  0.0   0.1+
190425 K61  0.7+  1.1+    190504 I52  0.0   0.4-    190918 695  0.2-  0.2-
190425 K61  0.4+  1.1+    190505 691  0.6+  0.8-    190918 695  0.0   0.1-
190425 K61  0.3+  0.9+    190505 691  0.2-  0.1+    240410 291  0.7-  0.2-
190426 291  0.2-  0.2+    190505 691  0.0   0.0     240410 291  0.8+  0.4-
190426 291  0.4-  0.2-    190508 691  0.3-  0.0     240417 T12  0.3-  0.2-
190426 291  0.2-  0.4-    190508 691  0.2+  0.3+    240502 291  0.4-  0.3+
190427 291  0.2+  0.1-    190509 691  0.1-  0.3-    240502 291  0.1-  0.0
190427 291  0.1+  0.2-    190509 691  0.4+  0.6+

Ephemeris:
2019 HN                  a,e,i = 1.86, 0.64, 35                  q = 0.6790
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 04 02    08 48 07.2 -25 17 53   0.9382  1.6758   119.7    31.2    22.8
...
2024 04 17    08 41 54.3 -16 12 51   0.9051  1.5399   107.4    38.5    22.8
...
2024 04 25    08 43 33.2 -11 15 04   0.8973  1.4642   100.4    42.5    22.8
...
2024 05 01    08 46 49.8 -07 34 57   0.8940  1.4060    95.2    45.5    22.7
2024 05 02    08 47 32.1 -06 58 42   0.8936  1.3962    94.3    46.0    22.7
2024 05 03    08 48 17.1 -06 22 35   0.8932  1.3864    93.4    46.5    22.7
...
2024 05 09    08 53 40.7 -02 49 04   0.8911  1.3267    88.3    49.5    22.7
...
2024 05 17    09 03 05.1 +01 46 50   0.8878  1.2457    81.7    53.4    22.7
...
2024 06 01    09 26 27.7 +10 04 47   0.8733  1.0907    70.2    61.0    22.6

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-J19





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