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  • MPEC 2023-H179 : 2023 HS4

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    M.P.E.C. 2023-H179                               Issued 2023 April 25, 18:40 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2023 HS4                                 
    
    
    Observations:
         K23H04S* C2023 04 23.34666011 59 04.479-19 18 03.26         20.30wUEH179F52
         K23H04S  C2023 04 23.35689511 59 12.066-19 17 19.45         20.67wUEH179F52
         K23H04S  C2023 04 23.36713311 59 19.691-19 16 35.06         20.25wUEH179F52
         K23H04S |C2023 04 24.03699 12 08 09.04 -18 26 18.3          20.9 VuEH179807
         K23H04S |C2023 04 24.04187 12 08 12.63 -18 25 58.2          21.0 VuEH179807
         K23H04S |C2023 04 24.04683 12 08 16.26 -18 25 37.0          20.8 VuEH179807
         K23H04S |C2023 04 24.05155 12 08 19.77 -18 25 16.1          20.9 VuEH179807
         K23H04S  C2023 04 24.25731612 10 55.197-18 12 13.32         20.4 GVEH179654
         K23H04S  C2023 04 24.28496612 11 15.260-18 10 10.97         20.1 GVEH179654
         K23H04S  C2023 04 24.31972312 11 40.504-18 07 34.35         19.7 GVEH179654
         K23H04S KC2023 04 24.42371312 13 04.00 -17 57 36.2          20.4 GVEH179474
         K23H04S KC2023 04 24.42734812 13 06.63 -17 57 20.2          20.4 GVEH179474
         K23H04S KC2023 04 24.42916512 13 07.93 -17 57 12.2          20.1 GVEH179474
         K23H04S KC2023 04 24.43098212 13 09.28 -17 57 04.2          20.8 GVEH179474
         K23H04S 3C2023 04 24.44206912 13 12.970-17 58 13.69         20.54GVEH179T14
         K23H04S 3C2023 04 24.44408112 13 14.424-17 58 04.58         20.17GVEH179T14
         K23H04S 3C2023 04 24.44564612 13 15.552-17 57 57.52         20.02GVEH179T14
         K23H04S 3C2023 04 24.44678712 13 16.372-17 57 52.39         19.96GVEH179T14
         K23H04S  C2023 04 25.19060312 22 42.212-17 03 26.55         20.5 GVEH179654
         K23H04S  C2023 04 25.19908712 22 48.177-17 02 49.89         20.5 GVEH179654
         K23H04S  C2023 04 25.25319012 23 25.905-16 58 51.64         20.1 GVEH179654
         K23H04S  C2023 04 25.26120912 23 31.512-16 58 16.07         20.1 GVEH179654
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
        Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    654 Table Mountain Observatory, Wrightwood-PHMC.  Observers N. Evans, P. Choi,
        N. Saini, C. Zhai, R. Trahan, M. Shao.  1.0-m Reflector + CCD.
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, 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.
    T14 Canada-France-Hawaii Telescope, Maunakea.  Observers R. Wainscoat, C.
        Cunningham, T. Burdullis.  Measurers R. Weryk, R. Wainscoat.  3.6-m
        Canada-France-Hawaii Telescope + CCD.
    
    Orbital elements:
    2023 HS4                                                 Earth MOID = 0.0646 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 345.69753              (2000.0)            P               Q                  
    n   0.43809185     Peri.  324.80696     -0.99354168     +0.06931574             
    a   1.7169564      Node   219.46725     -0.04007685     -0.95506253             
    e   0.3959382      Incl.    8.12482     -0.10615449     -0.28818551             
    P   2.25           H   24.87          G   0.15           U   7                  
    Residuals in seconds of arc
    230423 F52  0.2+  0.3+    230424 654  0.1+  0.0     230424 T14  0.0   0.0
    230423 F52  0.1-  0.1-    230424 654 (0.3-  1.4+)   230424 T14  0.0   0.0
    230423 F52  0.0   0.1-    230424 474  0.2+  0.0     230425 654  0.3-  0.3+
    230424 807  0.3-  0.5+    230424 474  0.1+  0.1+    230425 654  0.1+  0.1-
    230424 807  0.3-  0.3-    230424 474  0.2-  0.1+    230425 654  0.1-  0.1-
    230424 807  0.4-  0.4-    230424 474  0.2+  0.1+    230425 654  0.2+  0.2-
    230424 807  0.3+  0.2+    230424 T14  0.0   0.0
    230424 654  0.1+  0.1+    230424 T14  0.0   0.0
    
    Ephemeris:
    2023 HS4                 a,e,i = 1.72, 0.40, 8                   q = 1.0371
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 03 26    07 23 54.2 -26 45 31   0.1245  1.0379   105.7    67.7    22.8
    ...
    2023 04 10    09 04 28.1 -28 13 18   0.08425 1.0441   118.3    57.6    21.7
    ...
    2023 04 18    10 44 48.2 -24 48 17   0.07274 1.0572   135.7    41.5    20.9
    ...
    2023 04 24    12 07 36.4 -18 29 32   0.07408 1.0711   151.4    26.7    20.6
    2023 04 25    12 20 17.5 -17 16 06   0.07526 1.0738   153.7    24.5    20.5
    2023 04 26    12 32 27.3 -16 02 18   0.07671 1.0765   155.9    22.5    20.5
    ...
    2023 05 02    13 33 13.7 -09 14 07   0.09039 1.0947   163.9    14.8    20.7
    ...
    2023 05 10    14 25 22.5 -03 05 04   0.1187  1.1234   162.6    15.5    21.3
    ...
    2023 05 25    15 14 15.1 +01 21 39   0.1912  1.1882   154.6    21.4    22.7
    
    M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-H179
    


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