MPEC 2003-H25 : 2003 HN

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M.P.E.C. 2003-H25                                Issued 2003 Apr. 24, 14:45 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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 http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                    2003 HN

Observations:
     K03H00N* C2003 04 23.57519 13 27 25.59 -11 16 16.1          19.5        608
     K03H00N  C2003 04 23.58566 13 27 25.55 -11 15 46.8          20.5        608
     K03H00N  C2003 04 23.59660 13 27 25.42 -11 15 17.5          20.2        608
     K03H00N 1C2003 04 23.76197 13 27 25.06 -11 07 07.5          17.9 R      413
     K03H00N 1C2003 04 23.76518 13 27 25.05 -11 06 58.7          17.9 R      413
     K03H00N  C2003 04 23.88832 13 27 27.36 -11 02 03.1          18.0 R      587
     K03H00N  C2003 04 23.89013 13 27 27.33 -11 01 58.1          17.8 R      587
     K03H00N  C2003 04 23.89193 13 27 27.28 -11 01 52.9          17.6 R      587
     K03H00N  C2003 04 23.89321 13 27 27.25 -11 01 49.1          17.7 V      151
     K03H00N  C2003 04 23.89429 13 27 27.15 -11 01 47.8          18.1 V      151
     K03H00N  C2003 04 23.89590 13 27 27.28 -11 01 42.2          18.0 V      151
     K03H00N  C2003 04 23.89721 13 27 27.20 -11 01 37.9          17.9 V      151
     K03H00N  C2003 04 23.89796 13 27 27.22 -11 01 36.3          17.5 V      151
     K03H00N  C2003 04 23.90222 13 27 27.18 -11 01 25.9          17.7 V      151
     K03H00N  C2003 04 23.90351 13 27 27.18 -11 01 21.1          17.9 V      151
     K03H00N  C2003 04 23.90442 13 27 27.13 -11 01 18.1          18.2 V      151
     K03H00N  C2003 04 23.91999 13 27 26.78 -11 00 35.8                      246
     K03H00N  C2003 04 23.92078 13 27 26.74 -11 00 33.5                      246
     K03H00N  C2003 04 23.92188 13 27 26.74 -11 00 30.6                      246
     K03H00N  C2003 04 23.92313 13 27 26.73 -11 00 27.0                      246
     K03H00N  C2003 04 23.92449 13 27 26.71 -11 00 23.6                      246
     K03H00N  C2003 04 23.92563 13 27 26.70 -11 00 20.2                      246
     K03H00N  C2003 04 23.94615 13 27 26.73 -10 59 18.5          17.5        620
     K03H00N  C2003 04 23.94829 13 27 26.67 -10 59 12.1          17.9        620
     K03H00N  C2003 04 23.95043 13 27 26.68 -10 59 07.4          17.4        620
     K03H00N  C2003 04 23.95256 13 27 26.75 -10 59 01.7          17.9        620
     K03H00N  C2003 04 23.95470 13 27 26.66 -10 58 55.9          17.7        620
     K03H00N  C2003 04 23.98018 13 27 26.44 -10 57 48.2          17.9 R      J95
     K03H00N  C2003 04 23.98357 13 27 26.37 -10 57 38.6          18.0 R      J95
     K03H00N  C2003 04 23.98428 13 27 25.91 -10 57 36.0                      557
     K03H00N  C2003 04 23.98580 13 27 25.92 -10 57 31.7                      557
     K03H00N  C2003 04 23.98747 13 27 26.29 -10 57 27.3          18.0 R      J95
     K03H00N  C2003 04 23.98883 13 27 25.82 -10 57 23.7                      557
     K03H00N  C2003 04 24.04398 13 27 25.13 -10 54 45.2          17.3 R      599
     K03H00N  C2003 04 24.04497 13 27 25.14 -10 54 42.3          17.7 R      599
     K03H00N  C2003 04 24.04597 13 27 25.13 -10 54 39.7          17.4 R      599
     K03H00N  C2003 04 24.04698 13 27 25.12 -10 54 35.9          17.3 R      599
     K03H00N  C2003 04 24.17248 13 27 27.27 -10 48 38.3          17.5 R      854
     K03H00N  C2003 04 24.17609 13 27 27.21 -10 48 28.2          17.7 R      854
     K03H00N  C2003 04 24.18151 13 27 27.16 -10 48 12.8          17.6 R      854
     K03H00N  C2003 04 24.33670 13 27 24.78 -10 40 52.8          16.6 R      926
     K03H00N  C2003 04 24.34003 13 27 24.71 -10 40 42.8          16.7 R      926

Observer details:
151 Eschenberg Observatory, Winterthur.  Observer M. Griesser.  0.40-m f/5.8
    Hypergraph + CCD.
246 Klet Observatory-KLENOT.  Observer M. Tichy.  1.06-m KLENOT Telescope
    + CCD.
413 Siding Spring.  Observer R. H. McNaught.  1.0-m f/8 reflector + CCD.
557 Ondrejov.  Observer L. Sarounova.  0.65-m f/3.6 reflector + CCD.
587 Sormano.  Observers F. Manca, A. Testa.  0.5-m reflector + CCD.
599 Campo Imperatore-CINEOS.  Observers A. Boattini, E. Palomba, A. Di Paola,
    F. Bernardi.  0.60-m f/3 Schmidt + CCD.
608 Haleakala-NEAT/MSSS.  Observers S. Pravdo, M. Hicks, K. Lawrence,
    P. Kervin, J. Africano, R. Maeda.  1.2-m reflector + CCD.
620 Observatorio Astronomico de Mallorca.  Observers S. Sanchez, R. Stoss,
    J. Nomen.  0.30-m f/9 Schmidt-Cassegrain + CCD.
854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.30-m f/10.0
    Schmidt-Cassegrain + CCD.
926 Tenagra II Observatory.  Observers P. R. Holvorcem, M. Schwartz.  0.36-m
    f/11 Schmidt-Cassegrain + CCD, 0.81-m f/7 Ritchey-Chretien + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.30-m f/6.3 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2003 HN
Epoch 2003 Apr. 11.0 TT = JDT 2452740.5                 MPC
M 330.55392              (2000.0)            P               Q
n   0.38027821     Peri.   63.25099     +0.10541656     +0.98914330
a   1.8868401      Node   213.29601     -0.96573216     +0.07727494
e   0.4610322      Incl.   10.74903     -0.23716819     +0.12499648
P   2.59           H   19.7           G   0.15
From 42 observations 2003 Apr. 23-24.

Ephemeris:
2003 HN                  a,e,i = 1.89, 0.46, 11                  q = 1.0169
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 04 21    13 27.64   -13 07.3    0.258    1.261   173.5     5.1    17.7
2003 05 01    13 27.75   -04 34.0    0.204    1.203   161.3    15.6    17.5
2003 05 11    13 32.24   +07 59.7    0.166    1.150   144.8    30.4    17.4
2003 05 21    13 45.66   +24 24.9    0.143    1.103   126.3    47.7    17.5
2003 05 31    14 14.73   +42 35.1    0.136    1.065   108.5    64.6    17.8
2003 06 10    15 13.14   +58 39.1    0.141    1.037    94.8    77.4    18.2
2003 06 20    17 03.46   +68 54.6    0.156    1.021    87.2    84.0    18.7
2003 06 30    19 29.3    +71 01.4    0.176    1.017    85.3    84.8    18.9
2003 07 10    21 13.87   +67 28.7    0.197    1.027    87.5    81.4    19.1
2003 07 20    22 10.57   +62 13.3    0.218    1.050    92.8    75.2    19.1
2003 07 30    22 40.66   +56 34.0    0.237    1.083   100.3    67.3    19.1
2003 08 09    22 56.01   +50 29.3    0.255    1.126   109.8    57.9    19.1
2003 08 19    23 02.63   +43 46.9    0.273    1.176   120.9    47.6    19.0
2003 08 29    23 04.12   +36 22.7    0.296    1.232   133.3    36.7    19.0
2003 09 08    23 03.63   +28 36.2    0.329    1.292   145.4    26.2    19.0
2003 09 18    23 03.39   +21 09.8    0.376    1.355   155.0    18.3    19.2
2003 09 28    23 04.70   +14 42.2    0.439    1.419   158.1    15.3    19.5
2003 10 08    23 08.25   +09 35.8    0.520    1.484   153.9    17.2    20.0
2003 10 18    23 14.06   +05 52.2    0.618    1.549   146.3    20.9    20.6
2003 10 28    23 21.88   +03 20.9    0.732    1.613   138.0    24.3    21.2
2003 11 07    23 31.45   +01 48.5    0.859    1.677   129.9    27.0    21.7

Timothy B. Spahr             (C) Copyright 2003 MPC           M.P.E.C. 2003-H25

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