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  • MPEC 1998-Q26 : 1998 QR15

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    M.P.E.C. 1998-Q26                                Issued 1998 Aug. 26, 13:18 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 QR15
    
    Observations:
         J98Q15R* C1998 08 23.34147 22 11 08.41 -05 14 26.4          17.2        704
         J98Q15R  C1998 08 23.35345 22 11 07.89 -05 14 02.1          17.6        704
         J98Q15R  C1998 08 23.36584 22 11 07.46 -05 13 36.9          17.9        704
         J98Q15R  C1998 08 23.37845 22 11 06.99 -05 13 09.8          18.8        704
         J98Q15R  C1998 08 23.39064 22 11 06.69 -05 12 48.3          18.5        704
         J98Q15R  C1998 08 24.10875 22 10 45.85 -04 48 43.9          17.0 R      758
         J98Q15R  C1998 08 24.11388 22 10 45.62 -04 48 33.4          17.1 R      758
         J98Q15R  C1998 08 24.11939 22 10 45.41 -04 48 22.3          17.0 R      758
         J98Q15R  C1998 08 24.26753 22 10 40.35 -04 43 25.1                      670
         J98Q15R  C1998 08 24.27153 22 10 39.90 -04 43 21.9          16.1 V      713
         J98Q15R  C1998 08 24.27691 22 10 39.99 -04 43 05.8          17.5 V      670
         J98Q15R  C1998 08 24.28194 22 10 39.38 -04 42 57.7          15.9 V      713
         J98Q15R  C1998 08 24.29219 22 10 39.33 -04 42 34.3                      670
         J98Q15R  C1998 08 24.36250 22 10 36.03 -04 40 09.9                      711
         J98Q15R  C1998 08 24.36772 22 10 35.82 -04 39 59.4                      711
         J98Q15R  C1998 08 24.37294 22 10 35.61 -04 39 48.7                      711
         J98Q15R  C1998 08 24.47874 22 10 33.91 -04 35 45.5          17.8 R      422
         J98Q15R  C1998 08 24.48075 22 10 33.84 -04 35 41.4          17.8 R      422
         J98Q15R  C1998 08 24.48225 22 10 33.76 -04 35 38.6          17.8 R      422
         J98Q15R  C1998 08 24.48412 22 10 33.68 -04 35 34.5          18.0 R      422
         J98Q15R  C1998 08 24.57706 22 10 30.27 -04 32 24.8          15.8 R      426
         J98Q15R  C1998 08 24.58201 22 10 30.08 -04 32 15.0          15.9 R      426
         J98Q15R  C1998 08 24.58815 22 10 29.82 -04 32 02.2          15.9 R      426
         J98Q15R  C1998 08 24.59292 22 10 29.61 -04 31 52.6          16.0 R      426
         J98Q15R  C1998 08 24.82984 22 10 22.81 -04 24 17.1          16.7 V      596
         J98Q15R  C1998 08 24.83426 22 10 22.57 -04 24 09.0                      596
         J98Q15R  C1998 08 24.83506 22 10 22.55 -04 24 07.4          16.0 R      587
         J98Q15R  C1998 08 24.83804 22 10 22.42 -04 24 00.8                      596
         J98Q15R  C1998 08 24.83853 22 10 22.44 -04 24 00.5                      587
         J98Q15R  C1998 08 24.97013 22 10 17.11 -04 19 27.3          15.9 R      470
         J98Q15R  C1998 08 24.97428 22 10 16.96 -04 19 18.6          15.6 R      470
         J98Q15R  C1998 08 25.14832 22 10 12.12 -04 13 15.5          17.1 R      758
         J98Q15R  C1998 08 25.15463 22 10 11.87 -04 13 01.0          16.7 R      758
         J98Q15R  C1998 08 25.16036 22 10 11.65 -04 12 50.3          17.0 R      758
         J98Q15R  C1998 08 25.16766 22 10 11.64 -04 12 38.1                      734
         J98Q15R  C1998 08 25.17612 22 10 11.29 -04 12 20.3                      734
         J98Q15R  C1998 08 25.18323 22 10 10.99 -04 12 06.5                      734
         J98Q15R  C1998 08 25.33765 22 10 04.81 -04 06 43.0                      711
         J98Q15R  C1998 08 25.34272 22 10 04.59 -04 06 32.5                      711
         J98Q15R IC1998 08 25.34790 22 10 04.35 -04 06 19.4                      711
         J98Q15R  C1998 08 25.37368 22 10 03.84 -04 05 34.0                      658
         J98Q15R  C1998 08 25.37645 22 10 03.73 -04 05 28.3                      658
         J98Q15R  C1998 08 25.37984 22 10 03.60 -04 05 21.2                      658
         J98Q15R  C1998 08 25.50818 22 10 00.39 -04 00 19.7          17.5 R      422
         J98Q15R  C1998 08 25.50926 22 10 00.35 -04 00 17.6          17.7 R      422
         J98Q15R  C1998 08 25.51218 22 10 00.23 -04 00 11.4          16.9 R      422
         J98Q15R  C1998 08 25.51293 22 10 00.18 -04 00 09.9          17.6 R      422
         J98Q15R  C1998 08 25.52436 22 10 00.06 -03 59 45.5          15.8 R      426
         J98Q15R  C1998 08 25.52897 22 09 59.87 -03 59 36.1          15.8 R      426
         J98Q15R  C1998 08 25.53308 22 09 59.72 -03 59 27.2          15.9 R      426
         J98Q15R  C1998 08 25.53766 22 09 59.50 -03 59 18.1          15.9 R      426
         J98Q15R  C1998 08 25.87757 22 09 48.25 -03 47 57.5                      106
         J98Q15R  C1998 08 25.88233 22 09 48.04 -03 47 47.5                      106
         J98Q15R  C1998 08 25.89034 22 09 47.80 -03 47 30.4          16.2 R      587
         J98Q15R  C1998 08 25.89348 22 09 47.62 -03 47 24.1                      106
         J98Q15R  C1998 08 25.89560 22 09 47.58 -03 47 19.6                      587
         J98Q15R  C1998 08 25.90135 22 09 47.33 -03 47 07.7                      106
         J98Q15R  C1998 08 25.91837 22 09 46.60 -03 46 31.9                      106
         J98Q15R  C1998 08 25.92432 22 09 46.31 -03 46 20.4                      557
         J98Q15R  C1998 08 25.93024 22 09 46.08 -03 46 08.2          17.1 V      557
    
    Observer details:
    106 Crni Vrh.  Observers H. Mikuz, J. Skvarc.  0.36-m f/6.7 Schmidt-Cassegrain
        + CCD.
    422 Loomberah.  Observer G. J. Garradd.  0.45-m f/5.4 reflector + CCD.
    426 Woomera.  Observer F. B. Zoltowski.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
    470 Ceccano.  Observer G. Masi.  0.28-m f/3.3 Schmidt-Cassegrain + CCD.
    557 Ondrejov.  Observer L. Sarounova.  0.65-m f/3.6 reflector + CCD.
    587 Sormano.  Observers F. Manca, P. Sicoli.  0.5-m reflector + CCD.
    596 Colleverde di Guidonia.  Observer V. S. Casulli.  0.40-m f/2.95 reflector
        + CCD.
    658 Dominion Astrophysical Observatory.  Observer D. D. Balam.  1.82-m
        reflector + CCD.
    670 Camarillo.  Observer J. E. Rogers.  0.25-m Schmidt-Cassegrain + CCD.
    704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
        M. Bezpalko.  Measurers J. Stuart, H. Viggh, R. Sayer.  1.0-m f/2.15
        reflector + CCD.
    711 McDonald Observatory.  Observer P. J. Shelus.  0.76-m reflector + CCD.
    713 Thornton.  Observer R. A. Koff.  0.20-m f/10 Schmidt-Cassegrain + CCD.
    734 Farpoint Observatory.  Observer G. Hug.  0.30-m Schmidt-Cassegrain + CCD.
    758 BCC Observatory, Cocoa.  Observer I. P. Griffin.  0.30-m f/5 Maksutov
        + CCD.
    
    Orbital elements:
    1998 QR15
    Epoch 1998 Aug. 15.0 TT = JDT 2451040.5                 Williams
    M 346.86211              (2000.0)            P               Q
    n   0.21490483     Peri.   54.19864     +0.95045251     -0.29353061
    a   2.7603995      Node   322.56663     +0.20187422     +0.83320711
    e   0.5664470      Incl.    9.69585     +0.23640395     +0.46862105
    P   4.59           H   18.5           G   0.15
    From 60 observations 1998 Aug. 23-25.
    
    Ephemeris:
    1998 QR15                a,e,i = 2.76, 0.57, 10                  q = 1.1968
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1998 08 25    22 10.27   -04 18.2    0.327    1.336   173.3     5.0    17.1
    1998 08 30    22 07.48   -01 16.5    0.306    1.312   169.9     7.7    17.1
    1998 09 04    22 04.69   +02 02.8    0.289    1.290   165.1    11.6    17.1
    1998 09 09    22 02.21   +05 36.8    0.275    1.270   160.0    15.8    17.1
    1998 09 14    22 00.37   +09 20.6    0.266    1.251   154.9    20.0    17.1
    1998 09 19    21 59.51   +13 08.6    0.259    1.236   150.0    24.0    17.1
    1998 09 24    22 00.01   +16 54.7    0.256    1.222   145.5    27.7    17.2
    1998 09 29    22 02.17   +20 33.6    0.255    1.212   141.6    30.9    17.3
    1998 10 04    22 06.22   +24 00.7    0.257    1.204   138.2    33.6    17.4
    1998 10 09    22 12.31   +27 12.4    0.261    1.199   135.6    35.7    17.4
    1998 10 14    22 20.50   +30 05.4    0.267    1.197   133.5    37.2    17.5
    1998 10 19    22 30.81   +32 37.5    0.275    1.198   132.1    38.1    17.6
    1998 10 24    22 43.20   +34 47.5    0.285    1.201   131.2    38.6    17.7
    1998 10 29    22 57.53   +36 34.8    0.296    1.208   130.8    38.5    17.8
    1998 11 03    23 13.53   +37 59.2    0.310    1.217   130.7    38.1    17.9
    1998 11 08    23 30.83   +39 01.1    0.326    1.229   130.9    37.5    18.0
    1998 11 13    23 49.06   +39 41.1    0.344    1.244   131.3    36.7    18.1
    1998 11 18    00 07.83   +40 00.9    0.365    1.261   131.6    35.9    18.3
    1998 11 23    00 26.80   +40 03.0    0.389    1.280   131.9    35.0    18.4
    1998 11 28    00 45.64   +39 50.4    0.415    1.302   132.1    34.2    18.6
    1998 12 03    01 04.08   +39 26.3    0.445    1.325   132.0    33.6    18.8
    1998 12 08    01 21.92   +38 53.4    0.477    1.350   131.6    33.1    18.9
    1998 12 13    01 39.06   +38 14.4    0.514    1.377   130.9    32.7    19.1
    1998 12 18    01 55.49   +37 31.9    0.553    1.405   130.0    32.5    19.3
    1998 12 23    02 11.21   +36 47.9    0.597    1.434   128.7    32.4    19.5
    1998 12 28    02 26.27   +36 04.0    0.644    1.465   127.1    32.4    19.7
    1999 01 02    02 40.71   +35 21.4    0.694    1.496   125.4    32.4    19.9
    1999 01 07    02 54.57   +34 40.7    0.748    1.528   123.4    32.5    20.2
    1999 01 12    03 07.92   +34 02.3    0.805    1.561   121.3    32.6    20.4
    1999 01 17    03 20.83   +33 26.4    0.866    1.595   119.0    32.6    20.6
    1999 01 22    03 33.36   +32 53.1    0.929    1.629   116.7    32.7    20.8
    1999 01 27    03 45.56   +32 22.3    0.996    1.663   114.2    32.7    21.0
    1999 02 01    03 57.46   +31 53.7    1.066    1.698   111.7    32.6    21.2
    1999 02 06    04 09.10   +31 27.1    1.139    1.733   109.1    32.5    21.3
    1999 02 11    04 20.51   +31 02.2    1.214    1.769   106.5    32.3    21.5
    1999 02 16    04 31.71   +30 38.7    1.291    1.804   103.9    32.1    21.7
    1999 02 21    04 42.74   +30 16.3    1.371    1.840   101.2    31.8    21.9
    
    Gareth V. Williams           (C) Copyright 1998 MPC           M.P.E.C. 1998-Q26
    

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