MPEC 2001-E19 : 1999 DH8
The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.A form allowing access to any MPEC is at the bottom of this page.
Read MPEC 2001-E18
Read MPEC 2001-E20
M.P.E.C. 2001-E19 Issued 2001 Mar. 6, 20:29 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
1999 DH8
Revision to MPEC 1999-N10
Observations:
J99D08H C2000 03 30.26309 09 34 03.58 +17 19 17.8 568
J99D08H C2000 03 30.30371 09 34 03.47 +17 19 18.3 24.6 R 568
J99D08H C2001 02 23.24056 09 41 48.76 +16 47 23.8 24.5 R 309
J99D08H C2001 02 24.11954 09 41 44.66 +16 47 44.1 24.4 R 309
J99D08H C2001 02 24.15440 09 41 44.52 +16 47 44.9 24.6 R 309
Observer details:
309 Cerro Paranal. Observer B. Gladman. ESO VLT UT-1 8-m reflector + CCD.
568 Mauna Kea. Observers B. Gladman, J. Kavelaars, M. Holman, J.-M. Petit.
3.6-m Canada-France-Hawaii Telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
000330 568 92.4+ 33.5- 010224 309 0.06+ 0.02- MPC 36541
Orbital elements:
1999 DH8
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5 Marsden
M 306.57399 (2000.0) P Q
n 0.00334800 Peri. 98.12516 -0.91637782 +0.39300947
a 44.2533495 Node 105.04319 -0.39127646 -0.83916268
e 0.0730810 Incl. 4.52120 -0.08458386 -0.37596482
P 294 H 8.7 G 0.15 U 5
Residuals in seconds of arc
990216 568 0.0 0.3- 990509 807 0.2+ 0.9+ 010223 309 0.1- 0.1+
990216 568 0.0 0.4- 990510 807 0.4+ 1.3+ 010224 309 0.1- 0.1-
990217 568 0.3- 0.5- 000330 568 0.1- 0.2- 010224 309 0.3+ 0.1-
990217 568 0.3- 0.5- 000330 568 0.0 0.2-
Ephemeris:
1999 DH8 a,e,i = 44.25, 0.07, 5 q = 41.019
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 03 02 09 41.29 +16 49.9 41.559 42.494 160.4 0.4 25.0
2001 03 12 09 40.57 +16 53.4 41.627 42.492 150.2 0.7 25.1
2001 03 22 09 39.93 +16 56.3 41.721 42.491 140.2 0.9 25.1
2001 04 01 09 39.40 +16 58.6 41.838 42.489 130.2 1.0 25.1
2001 04 11 09 38.99 +17 00.2 41.974 42.487 120.2 1.2 25.1
2001 04 21 09 38.71 +17 01.0 42.125 42.486 110.4 1.3 25.1
2001 05 01 09 38.58 +17 01.1 42.286 42.484 100.6 1.3 25.2
2001 05 11 09 38.61 +17 00.4 42.453 42.482 91.0 1.4 25.2
2001 05 21 09 38.79 +16 59.0 42.620 42.481 81.4 1.3 25.2
2001 05 31 09 39.12 +16 56.8 42.783 42.479 71.9 1.3 25.2
2001 06 10 09 39.59 +16 54.0 42.937 42.477 62.5 1.2 25.2
2001 06 20 09 40.19 +16 50.6 43.078 42.476 53.1 1.1 25.2
2001 06 30 09 40.91 +16 46.6 43.203 42.474 43.7 0.9 25.2
2001 07 10 09 41.73 +16 42.3 43.307 42.472 34.4 0.8 25.2
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-E19
Read MPEC 2001-E18
Read MPEC 2001-E20
Enter an MPEC number in one of the following forms:
- 1997-B01 (the full form)
- J97B01 (the packed version of the full form)
- B01 (the abbreviated form)