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  • MPEC 1998-W02 : 1998 VD31

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    M.P.E.C. 1998-W02                                Issued 1998 Nov. 16, 15:01 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.
    
                 BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
                       URL http://cfa-www.harvard.edu/iau/mpc.html
    
                                       1998 VD31
    
    Observations:
         J98V31D* C1998 11 10.98208 03 09 51.17 +18 18 30.8          17.9 V      910
         J98V31D  C1998 11 11.00494 03 09 46.13 +18 18 41.9          18.0 V      910
         J98V31D  C1998 11 11.02753 03 09 41.13 +18 18 52.8          18.0 V      910
         J98V31D  C1998 11 11.78333 03 06 55.44 +18 25 04.1          17.1 R      611
         J98V31D  C1998 11 11.78669 03 06 54.61 +18 25 05.1          17.0 R      611
         J98V31D  C1998 11 11.78889 03 06 54.26 +18 25 07.2          17.2 R      611
         J98V31D  C1998 11 11.91194 03 06 25.99 +18 26 12.4          18.0 V      910
         J98V31D  C1998 11 11.92986 03 06 21.16 +18 26 20.4                      557
         J98V31D  C1998 11 11.93185 03 06 20.71 +18 26 21.4          17.9 V      557
         J98V31D  C1998 11 11.93534 03 06 20.45 +18 26 24.5          18.0 V      910
         J98V31D  C1998 11 11.95853 03 06 14.93 +18 26 36.4          17.9 V      910
         J98V31D  C1998 11 12.45140 03 04 20.23 +18 30 49.5          17.9 V      402
         J98V31D  C1998 11 12.45279 03 04 19.87 +18 30 50.0                      402
         J98V31D  C1998 11 12.45418 03 04 19.58 +18 30 51.1                      402
         J98V31D  C1998 11 12.45557 03 04 19.20 +18 30 51.9                      402
         J98V31D  C1998 11 12.56198 03 03 53.00 +18 31 49.6          17.9 V      360
         J98V31D  C1998 11 12.56476 03 03 52.32 +18 31 51.2                      360
         J98V31D  C1998 11 12.57153 03 03 50.63 +18 31 54.9                      360
         J98V31D  C1998 11 12.80084 03 02 55.43 +18 33 45.1                      557
         J98V31D  C1998 11 12.80296 03 02 54.91 +18 33 46.3                      557
         J98V31D  C1998 11 12.80484 03 02 54.42 +18 33 47.5                      557
         J98V31D  C1998 11 12.82179 03 02 50.27 +18 33 57.5          17.1 R      046
         J98V31D  C1998 11 12.82277 03 02 50.00 +18 33 58.2                      046
         J98V31D  C1998 11 12.82425 03 02 49.59 +18 33 58.6                      046
         J98V31D  C1998 11 12.82509 03 02 49.38 +18 33 59.2                      046
         J98V31D  C1998 11 12.93909 03 02 21.10 +18 35 00.9          18.2 V      910
         J98V31D  C1998 11 12.96304 03 02 14.99 +18 35 14.0          18.2 V      910
         J98V31D  C1998 11 12.98701 03 02 08.83 +18 35 26.2          18.1 V      910
         J98V31D  C1998 11 13.20461 03 01 14.41 +18 37 23.0                      734
         J98V31D  C1998 11 13.21149 03 01 12.84 +18 37 27.3                      734
         J98V31D  C1998 11 13.21765 03 01 11.15 +18 37 29.7                      734
         J98V31D  C1998 11 13.51233 02 59 56.32 +18 40 06.8          18.0 V      402
         J98V31D  C1998 11 13.51372 02 59 55.80 +18 40 08.5                      402
         J98V31D  C1998 11 13.51510 02 59 55.54 +18 40 08.3                      402
         J98V31D  C1998 11 13.73014 02 59 00.21 +18 41 56.1                      046
         J98V31D  C1998 11 13.73181 02 58 59.46 +18 41 55.2          17.8 V      046
         J98V31D  C1998 11 13.73266 02 58 59.15 +18 41 56.7                      046
         J98V31D  C1998 11 13.73795 02 58 57.81 +18 42 00.0                      046
         J98V31D  C1998 11 13.73977 02 58 57.32 +18 42 00.5                      046
         J98V31D  C1998 11 13.74163 02 58 56.88 +18 42 01.8          17.6 V      046
         J98V31D FC1998 11 13.76439 02 58 50.74 +18 42 14.4          18.2 R      540
         J98V31D FC1998 11 13.76789 02 58 49.46 +18 42 15.7                      540
         J98V31D FC1998 11 13.77125 02 58 48.71 +18 42 19.5                      540
         J98V31D FC1998 11 13.77455 02 58 48.04 +18 42 19.2                      540
         J98V31D  C1998 11 13.78875 02 58 44.29 +18 42 28.6          17.9 V      046
         J98V31D  C1998 11 13.79015 02 58 43.87 +18 42 28.9                      046
         J98V31D  C1998 11 13.79111 02 58 43.66 +18 42 29.7                      046
         J98V31D  C1998 11 13.80992 02 58 38.63 +18 42 41.6                      106
         J98V31D  C1998 11 13.81420 02 58 37.45 +18 42 44.1                      106
         J98V31D  C1998 11 13.82080 02 58 35.74 +18 42 47.5                      106
         J98V31D  C1998 11 13.83618 02 58 31.46 +18 42 55.9                      106
         J98V31D  C1998 11 14.59177 02 55 04.75 +18 49 53.0          18.2 V      402
         J98V31D  C1998 11 14.59316 02 55 04.35 +18 49 53.8                      402
         J98V31D  C1998 11 14.59455 02 55 03.96 +18 49 54.7                      402
         J98V31D  C1998 11 14.59594 02 55 03.53 +18 49 55.6                      402
         J98V31D  C1998 11 14.60150 02 55 01.86 +18 50 26.7          17.3 R      426
         J98V31D  C1998 11 14.60499 02 55 00.91 +18 50 28.9          17.5 R      426
         J98V31D  C1998 11 14.60826 02 54 59.91 +18 50 30.2          17.4 R      426
         J98V31D  C1998 11 15.18207 02 52 16.31 +18 55 17.9                      673
         J98V31D  C1998 11 15.18527 02 52 15.49 +18 55 19.3                      673
         J98V31D  C1998 11 15.24837 02 51 55.88 +18 55 59.3                      711
         J98V31D  C1998 11 15.25314 02 51 54.43 +18 56 01.9                      711
         J98V31D  C1998 11 15.25792 02 51 52.96 +18 56 04.7                      711
         J98V31D  C1998 11 15.52980 02 50 32.43 +18 59 04.1          16.9 R      426
         J98V31D  C1998 11 15.53337 02 50 31.31 +18 59 06.5          17.0 R      426
         J98V31D  C1998 11 15.53676 02 50 30.29 +18 59 08.1          16.7 R      426
         J98V31D  C1998 11 15.54419 02 50 27.91 +18 58 42.3          17.6 V      897
         J98V31D  C1998 11 15.55243 02 50 25.33 +18 58 48.4                      897
         J98V31D  C1998 11 15.56204 02 50 22.18 +18 58 51.9                      897
         J98V31D  C1998 11 15.57601 02 50 17.88 +18 59 00.9                      897
         J98V31D  C1998 11 15.60243 02 50 09.86 +18 59 16.5          18.1 V      360
         J98V31D  C1998 11 15.60503 02 50 09.02 +18 59 18.0                      360
         J98V31D  C1998 11 15.60764 02 50 08.19 +18 59 19.5                      360
         J98V31D  C1998 11 15.85257 02 48 54.02 +19 01 31.8          17.6 R      587
         J98V31D  C1998 11 15.85558 02 48 53.08 +19 01 33.6                      587
         J98V31D  C1998 11 16.05600 02 47 48.98 +19 03 24.9          17.7 V      046
         J98V31D  C1998 11 16.05681 02 47 48.70 +19 03 25.3                      046
         J98V31D  C1998 11 16.05760 02 47 48.45 +19 03 25.6                      046
         J98V31D  C1998 11 16.06198 02 47 47.03 +19 03 27.9                      046
         J98V31D  C1998 11 16.27423 02 46 40.60 +19 05 40.0                      711
         J98V31D  C1998 11 16.27922 02 46 38.95 +19 05 43.0                      711
         J98V31D  C1998 11 16.28418 02 46 37.31 +19 05 45.8                      711
         J98V31D  C1998 11 16.54932 02 45 12.34 +19 08 46.2          16.8 R      426
         J98V31D  C1998 11 16.55278 02 45 11.23 +19 08 48.1          17.0 R      426
    
    Observer details:
    046 Klet.  Observers J. Ticha, M. Tichy, Z. Moravec.  Measurer M. Tichy.
        0.57-m f/5.2 reflector + CCD.  Stellar appearance.
    106 Crni Vrh.  Observers H. Mikuz, B. Dintinjana, J. Skvarc.  0.36-m f/6.7
        Schmidt-Cassegrain + CCD.
    360 Kuma Kogen.  Observer A. Nakamura.  0.60-m f/6.0 Ritchey-Chretien + CCD.
    402 Dynic Astronomical Observatory.  Observer A. Sugie.  0.60-m f/3.7 reflector
        + CCD.
    426 Woomera.  Observer F. B. Zoltowski.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
        Stellar appearance.
    540 Linz.  Observer E. Meyer.  0.3-m f/5.2 Schmidt-Cassegrain + CCD.
    557 Ondrejov.  Observers P. Pravec, L. Sarounova.  0.65-m f/3.6 reflector
        + CCD.
    587 Sormano.  Observers F. Manca, P. Sicoli.  0.5-m reflector + CCD.
    611 Starkenburg.  Observer R. Stoss.  0.45-m f/4.4 reflector + CCD.
    673 Table Mountain Observatory, Wrightwood.  Observers G. Genevier,
        G. R. Miller.  0.6-m reflector + CCD.
    711 McDonald Observatory.  Observers P. J. Shelus, J. G. Ries.  0.76-m
        reflector + CCD.  Stellar appearance.
    734 Farpoint Observatory.  Observer G. Hug.  0.30-m Schmidt-Cassegrain + CCD.
    897 Chiyoda.  Observer T. Kojima.  0.25-m f/6.0 reflector + CCD.
    910 Caussols-ODAS.  Observers A. Maury, D. Albanese, G. Hahn, M. Hoffmann.
        Measurers A. Maury, G. Hahn.  0.9-m Schmidt + CCD.
    
    Orbital elements:
    1998 VD31
    Epoch 1998 Nov. 3.0 TT = JDT 2451120.5                  Williams
    M 344.08857              (2000.0)            P               Q
    n   0.20482998     Peri.  113.31910     -0.93573617     -0.32515737
    a   2.8501893      Node    48.00934     +0.21696412     -0.83610546
    e   0.8191900      Incl.   10.59353     +0.27807265     -0.44181483
    P   4.81           H   19.2           G   0.15
    From 72 observations 1998 Nov. 10-16.
    
    Ephemeris:
    1998 VD31                a,e,i = 2.85, 0.82, 11                  q = 0.5153
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1998 11 13    03 02.09   +18 35.7    0.348    1.337   177.6     1.8    17.8
    1998 11 18    02 36.86   +19 22.4    0.286    1.269   166.9    10.2    17.7
    1998 11 23    01 59.52   +20 08.6    0.232    1.199   153.3    21.7    17.5
    1998 11 28    01 04.00   +20 26.5    0.188    1.129   135.6    37.7    17.4
    1998 12 03    23 45.48   +19 05.3    0.159    1.057   112.6    59.4    17.5
    1998 12 08    22 12.00   +14 47.0    0.151    0.985    85.5    85.7    18.1
    1998 12 13    20 46.91   +08 34.3    0.166    0.912    59.7   111.2    19.3
    
    Gareth V. Williams           (C) Copyright 1998 MPC           M.P.E.C. 1998-W02
    

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