[Iaude] MPEC G115: 2017 HS [a=2.29,e=0.60,i=6.9,H=21.28]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Tue Apr 9 10:13:57 EDT 2024


M.P.E.C. 2024-G115                                Issued 2024 April 9, 14:12 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

                                    2017 HS                                     


                           Revision to MPEC 2017-H21                            

Additional Observations:
     K17H00S 0C2024 04 05.59628016 52 20.891-11 06 50.09         21.65GVEG115T14
     K17H00S 0C2024 04 05.59725816 52 21.152-11 06 49.18         21.73GVEG115T14
     K17H00S 0C2024 04 05.59823516 52 21.405-11 06 48.26         21.31GVEG115T14
     K17H00S 0C2024 04 05.59921416 52 21.661-11 06 47.34         21.38GVEG115T14
     K17H00S 0C2024 04 05.60019116 52 21.917-11 06 46.47         22.08GVEG115T14
     K17H00S 0C2024 04 05.60117016 52 22.172-11 06 45.52         21.64GVEG115T14
     K17H00S KC2024 04 07.48365617 01 02.121-10 35 45.91         20.5 GVEG115I52
     K17H00S KC2024 04 07.48792617 01 03.311-10 35 41.73         20.6 GVEG115I52
     K17H00S KC2024 04 07.49181317 01 04.385-10 35 37.53         20.5 GVEG115I52

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  Measurers
    D. Rankin, D. Parrott.  1.00-m f/2.0 prime focus + CCD + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea.  Observer L. Wells.  Measurer D.
    J. Tholen.  3.6-m f/4.1 reflector + 1024 x 2306 pixels Megacam.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240405 T14 0.26+ 0.03+    240407 I52 0.27+ 0.03+    E2024-BE1   +0.11 days

Orbital elements:
2017 HS                                                  Earth MOID = 0.0547 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
M 338.29509              (2000.0)            P               Q                  
n   0.28467632     Peri.  111.98888     +0.34450915     +0.93877486             
a   2.2885926      Node   178.14958     -0.89971632     +0.33135590             
e   0.5962225      Incl.    6.93758     -0.26799998     +0.09436651             
P   3.46           H   21.28          G   0.15           U   0                  
Residuals in seconds of arc
170416 F51  0.1+  0.2-    170430 691  0.4+  0.3-    170924 F51  0.0   0.0
170416 F51  0.1+  0.2-    170430 691  0.6+  0.6-    170924 G96  0.0   0.4+
170416 F51  0.0   0.1-    170503 691  0.1-  0.1-    170924 G96  0.3-  0.1+
170417 K92  0.0   0.3-    170503 691  0.1+  0.2+    170924 G96  0.3-  0.1+
170417 K92  0.0   0.1+    170503 691  0.1+  0.0     170924 G96  0.3+  0.5-
170417 K92  0.6+  0.1-    170523 291  0.4+  0.5-    170927 G96  0.1+  0.2+
170418 291  0.1+  0.1+    170523 291  0.4+  0.8-    170927 G96  0.3-  0.1+
170418 291  0.0   0.2-    170523 291  0.1+  0.5-    170927 G96  0.2-  0.1-
170418 291  0.1-  0.1-    170620 291  0.2+  0.5+    170927 G96  0.1+  0.2+
170418 926  0.9-  0.7+    170620 291  0.2-  0.2+    171011 F51  0.0   0.0
170418 926  0.0   0.1+    170830 I52  0.3+  0.1+    171011 F51  0.1-  0.1-
170419 291  0.4+  0.5+    170830 I52  0.3-  0.9-    171011 F51  0.1+  0.2+
170419 291  0.1+  0.5+    170830 I52  0.0   0.2-    240405 T14  0.0   0.0
170419 291  0.1-  0.4+    170903 G96  0.6+  0.5+    240405 T14  0.1+  0.0
170420 691  0.2+  0.1+    170903 G96  0.4+  0.6+    240405 T14  0.0   0.0
170420 691  0.4-  0.5+    170903 G96  0.2+  0.2-    240405 T14  0.0   0.0
170420 691  0.6+  0.8+    170903 G96  0.5+  0.0     240405 T14  0.0   0.0
170423 I52  1.1-  0.1+    170904 H21  0.4-  0.5+    240405 T14  0.0   0.0
170423 I52  0.6-  0.3-    170904 H21  0.3-  0.4+    240407 I52  0.5-  0.3+
170423 I52  0.2-  0.4+    170904 H21  0.3-  0.3+    240407 I52  0.3-  0.0
170423 I52  0.7-  0.4-    170924 F51  0.1-  0.2-    240407 I52  0.3-  0.1+
170430 691  0.4+  0.4-    170924 F51  0.0   0.2-

Ephemeris:
2017 HS                  a,e,i = 2.29, 0.60, 7                   q = 0.9241
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 03 10    15 23 28.6 -14 07 37   0.7886  1.5257   117.3    35.3    23.1
...
2024 03 25    16 07 20.3 -13 13 36   0.5878  1.3992   121.8    37.3    22.4
...
2024 04 02    16 36 57.8 -11 56 56   0.4949  1.3322   122.5    39.3    21.9
...
2024 04 08    17 03 29.4 -10 26 25   0.4329  1.2828   121.7    41.6    21.6
2024 04 09    17 08 21.1 -10 07 56   0.4233  1.2746   121.4    42.1    21.6
2024 04 10    17 13 21.1 -09 48 23   0.4139  1.2665   121.1    42.6    21.5
...
2024 04 16    17 46 34.7 -07 26 08   0.3626  1.2184   118.4    46.4    21.3
...
2024 04 24    18 40 38.6 -03 01 58   0.3100  1.1567   111.7    53.9    21.0
...
2024 05 09    20 47 59.0 +07 53 53   0.2733  1.0528    91.5    73.4    21.1

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-G115




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