MPEC 2001-T54 : 2001 QE298, 2001 QF298, 2001 QG298, 2001 QH298, 2001 QJ298
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M.P.E.C. 2001-T54 Issued 2001 Oct. 13, 23:03 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
2001 QE298, 2001 QF298, 2001 QG298, 2001 QH298, 2001 QJ298
Observations:
K01QT8E* C2001 08 19.23189 23 15 34.61 -06 14 01.6 21.2 R 807
K01QT8E C2001 08 19.31453 23 15 34.23 -06 14 03.9 807
K01QT8E C2001 08 20.29073 23 15 29.79 -06 14 31.9 807
K01QT8E C2001 08 20.37625 23 15 29.36 -06 14 35.1 807
K01QT8F C2001 05 23.33337 23 17 49.07 -05 40 51.2 21.1 R 807
K01QT8F C2001 05 23.41349 23 17 49.22 -05 40 50.6 807
K01QT8F* C2001 08 19.23189 23 16 02.46 -06 01 39.6 20.0 R 807
K01QT8F C2001 08 19.31453 23 16 02.12 -06 01 42.3 807
K01QT8F C2001 08 20.29073 23 15 58.18 -06 02 12.8 20.0 R 807
K01QT8F C2001 08 20.37625 23 15 57.83 -06 02 15.6 807
K01QT8F C2001 09 18.22677 23 13 53.53 -06 17 55.4 21.0 R 688
K01QT8F C2001 09 18.31522 23 13 53.14 -06 17 58.3 688
K01QT8G* C2001 08 19.27979 23 33 00.40 -04 02 31.8 19.8 R 807
K01QT8G C2001 08 19.36483 23 32 59.98 -04 02 34.7 807
K01QT8G C2001 08 21.31117 23 32 50.45 -04 03 43.3 20.4 R 807
K01QT8G C2001 08 21.37861 23 32 50.12 -04 03 45.7 807
K01QT8G C2001 09 19.31160 23 30 14.18 -04 21 54.7 21.8 R 688
K01QT8G C2001 09 19.37763 23 30 13.81 -04 21 57.0 688
K01QT8H* C2001 08 19.31029 23 41 47.47 -07 04 52.0 22.2 R 807
K01QT8H C2001 08 19.39741 23 41 47.15 -07 04 54.9 807
K01QT8H C2001 08 20.31973 23 41 43.14 -07 05 25.6 807
K01QT8H C2001 08 20.40536 23 41 42.77 -07 05 28.4 807
K01QT8J* C2001 08 21.16381 21 56 08.42 -11 56 33.0 21.3 R 807
K01QT8J C2001 08 21.23808 21 56 08.11 -11 56 34.9 807
K01QT8J C2001 09 12.25165 21 54 36.30 -12 04 56.9 22.2 R 695
K01QT8J C2001 09 12.29892 21 54 36.10 -12 04 58.1 695
Observer details:
688 Lowell Observatory, Anderson Mesa Station. Observers R. L. Millis,
L. H. Wasserman. Measurers L. H. Wasserman, M. W. Buie.
1.8-m reflector + CCD.
695 Kitt Peak. Observers L. H. Wasserman, E. L. Ryan. Measurers
M. W. Buie, L. H. Wasserman, R. L. Millis, S. D. Kern, J. L. Elliot,
K. E. Washburn. 4-m reflector + CCD.
807 Cerro Tololo. Observers R. L. Millis, M. W. Buie, L. H. Wasserman.
Measurers M. W. Buie, L. H. Wasserman, R. L. Millis, S. D. Kern,
J. L. Elliot, K. E. Washburn. 4-m Blanco reflector + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
K01QT8E 5.8 0.15 K018J 360.000 328.802 17.971 2.530 0.05085 39.52946 1EM
K01QT8F 4.7 0.15 K017A 308.875 286.700 164.254 22.784 0.45107 47.85585 118EM
K01QT8G 6.3 0.15 K018J 360.000 188.944 162.530 6.476 0.18388 39.30209 31EM
K01QT8H 6.9 0.15 K018J 360.000 222.148 130.347 6.825 0.07523 39.36563 1EM
K01QT8J 5.6 0.15 K018J 0.000 164.180 162.860 2.133 0.0 45.06897 22EM
Ephemerides:
2001 QE298 a,e,i = 39.53, 0.05, 3 q = 37.519
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 08 23 11.62 -06 38.3 36.638 37.519 151.5 0.7 21.6
2001 10 18 23 10.95 -06 42.1 36.735 37.519 141.4 0.9 21.6
2001 10 28 23 10.40 -06 45.2 36.856 37.519 131.3 1.1 21.7
2001 11 07 23 09.97 -06 47.5 36.996 37.519 121.2 1.3 21.7
2001 11 17 23 09.70 -06 48.7 37.152 37.519 111.1 1.4 21.7
2001 11 27 23 09.59 -06 48.9 37.319 37.519 101.0 1.5 21.7
2001 12 07 23 09.65 -06 48.1 37.492 37.519 90.9 1.5 21.7
2001 12 17 23 09.88 -06 46.1 37.665 37.519 80.8 1.5 21.7
2001 12 27 23 10.27 -06 43.1 37.833 37.519 70.7 1.4 21.8
2002 01 06 23 10.83 -06 39.2 37.992 37.519 60.7 1.3 21.8
2002 01 16 23 11.53 -06 34.4 38.135 37.519 50.7 1.2 21.7
2002 01 26 23 12.35 -06 28.8 38.260 37.519 40.7 1.0 21.7
2002 02 05 23 13.28 -06 22.6 38.363 37.519 30.8 0.8 21.7
2001 QF298 a,e,i = 47.86, 0.45, 23 q = 26.270
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 08 23 12.53 -06 28.0 41.724 42.607 151.8 0.6 21.1
2001 10 18 23 11.94 -06 32.4 41.808 42.595 141.7 0.8 21.1
2001 10 28 23 11.44 -06 36.1 41.916 42.582 131.6 1.0 21.1
2001 11 07 23 11.06 -06 39.1 42.044 42.570 121.5 1.1 21.1
2001 11 17 23 10.81 -06 41.3 42.187 42.558 111.4 1.2 21.1
2001 11 27 23 10.70 -06 42.5 42.342 42.546 101.3 1.3 21.2
2001 12 07 23 10.74 -06 42.7 42.502 42.533 91.1 1.3 21.2
2001 12 17 23 10.93 -06 42.0 42.664 42.521 81.0 1.3 21.2
2001 12 27 23 11.27 -06 40.4 42.820 42.509 70.9 1.3 21.2
2002 01 06 23 11.75 -06 37.9 42.967 42.497 60.9 1.2 21.2
2002 01 16 23 12.36 -06 34.6 43.099 42.484 50.8 1.0 21.2
2002 01 26 23 13.08 -06 30.6 43.212 42.472 40.9 0.9 21.2
2002 02 05 23 13.89 -06 26.1 43.303 42.460 30.9 0.7 21.1
2001 QG298 a,e,i = 39.30, 0.18, 6 q = 32.075
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 08 23 28.58 -04 33.2 31.158 32.075 156.2 0.7 21.4
2001 10 18 23 27.79 -04 38.5 31.243 32.075 146.1 1.0 21.5
2001 10 28 23 27.12 -04 42.9 31.354 32.075 136.0 1.2 21.5
2001 11 07 23 26.60 -04 46.5 31.485 32.075 125.8 1.4 21.5
2001 11 17 23 26.24 -04 48.9 31.635 32.075 115.7 1.6 21.5
2001 11 27 23 26.07 -04 50.0 31.797 32.075 105.5 1.7 21.6
2001 12 07 23 26.08 -04 50.0 31.968 32.075 95.4 1.8 21.6
2001 12 17 23 26.30 -04 48.6 32.142 32.076 85.3 1.8 21.6
2001 12 27 23 26.72 -04 46.0 32.313 32.076 75.2 1.7 21.6
2002 01 06 23 27.32 -04 42.2 32.476 32.076 65.2 1.6 21.6
2002 01 16 23 28.10 -04 37.3 32.627 32.076 55.2 1.4 21.6
2002 01 26 23 29.03 -04 31.5 32.761 32.076 45.3 1.2 21.6
2002 02 05 23 30.10 -04 24.8 32.874 32.076 35.4 1.0 21.6
2001 QH298 a,e,i = 39.37, 0.08, 7 q = 36.404
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 08 23 37.78 -07 32.2 35.484 36.404 156.7 0.6 22.6
2001 10 18 23 37.04 -07 36.5 35.567 36.404 146.8 0.9 22.6
2001 10 28 23 36.40 -07 40.0 35.674 36.404 136.7 1.1 22.6
2001 11 07 23 35.88 -07 42.5 35.804 36.404 126.6 1.3 22.7
2001 11 17 23 35.50 -07 43.9 35.952 36.404 116.5 1.4 22.7
2001 11 27 23 35.28 -07 44.3 36.113 36.404 106.4 1.5 22.7
2001 12 07 23 35.24 -07 43.4 36.283 36.404 96.3 1.5 22.7
2001 12 17 23 35.36 -07 41.4 36.456 36.404 86.2 1.5 22.7
2001 12 27 23 35.66 -07 38.3 36.627 36.404 76.2 1.5 22.7
2002 01 06 23 36.14 -07 34.2 36.791 36.404 66.1 1.4 22.7
2002 01 16 23 36.77 -07 29.2 36.943 36.404 56.2 1.3 22.7
2002 01 26 23 37.54 -07 23.4 37.078 36.404 46.3 1.1 22.7
2002 02 05 23 38.44 -07 17.0 37.193 36.404 36.4 0.9 22.7
2001 QJ298 a,e,i = 45.07, 0.00, 2
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 08 21 53.19 -12 12.8 44.401 45.069 131.5 1.0 22.3
2001 10 18 21 52.82 -12 15.0 44.540 45.069 121.5 1.1 22.3
2001 10 28 21 52.59 -12 16.4 44.696 45.069 111.5 1.2 22.3
2001 11 07 21 52.49 -12 17.1 44.862 45.069 101.5 1.2 22.3
2001 11 17 21 52.53 -12 17.1 45.034 45.069 91.4 1.3 22.3
2001 11 27 21 52.73 -12 16.3 45.207 45.069 81.3 1.2 22.3
2001 12 07 21 53.06 -12 14.7 45.375 45.069 71.3 1.2 22.3
2001 12 17 21 53.54 -12 12.4 45.534 45.069 61.3 1.1 22.3
2001 12 27 21 54.14 -12 09.5 45.678 45.069 51.2 1.0 22.3
2002 01 06 21 54.85 -12 05.9 45.804 45.069 41.2 0.8 22.3
2002 01 16 21 55.65 -12 01.8 45.907 45.069 31.2 0.6 22.3
The perihelic 2:3 Neptune-resonance orbits for 2001 QE298, QG298 and
QH298 keep these objects more than 9 AU from Neptune and the 1:2 Neptune-
resonance orbit for 2001 QF298 keeps this object more than 14 AU from
Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-T54
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