MPEC 1999-J18 : 1998 HK151
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 1999-J17
Read MPEC 1999-J19
M.P.E.C. 1999-J18 Issued 1999 May 7, 15:26 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 ISSN 1523-6714
1998 HK151
Observations:
J98HF1K*1C1998 04 28.49854 15 11 15.66 -17 45 51.5 22.1 R 568
J98HF1K 1C1998 04 28.53791 15 11 15.40 -17 45 50.6 22.1 R 568
J98HF1K 1C1998 04 28.57687 15 11 15.15 -17 45 49.7 22.1 R 568
J98HF1K 1C1998 04 30.42507 15 11 03.47 -17 45 08.2 22.1 R 568
J98HF1K 1C1998 04 30.44055 15 11 03.37 -17 45 07.8 22.1 R 568
J98HF1K 1C1998 05 22.40111 15 08 42.13 -17 36 41.6 22.1 R 568
J98HF1K 1C1998 05 22.40926 15 08 42.08 -17 36 41.4 22.1 R 568
J98HF1K 1C1998 05 22.41742 15 08 42.01 -17 36 41.2 22.1 R 568
J98HF1K 1C1998 06 29.39329 15 05 23.52 -17 24 56.5 22.1 R 568
J98HF1K 1C1998 06 30.38951 15 05 19.92 -17 24 44.4 22.1 R 568
J98HF1K 1C1998 07 01.43602 15 05 16.25 -17 24 32.0 22.1 R 568
J98HF1K 1C1999 03 13.59082 15 24 28.79 -18 49 53.5 21.8 R 568
J98HF1K 1C1999 03 14.58160 15 24 26.48 -18 49 47.8 21.8 R 568
J98HF1K 1C1999 04 08.56052 15 22 51.41 -18 45 09.8 21.8 R 568
J98HF1K 1C1999 04 08.58311 15 22 51.29 -18 45 09.3 21.8 R 568
Observer details:
568 Mauna Kea. Observers C. Trujillo, D. Tholen, D. Jewitt, J. Luu.
Measurer C. Trujillo. 2.2-m University of Hawaii reflector + CCD.
Orbital elements:
1998 HK151
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 2.34257 (2000.0) P Q
n 0.00402384 Peri. 178.85065 -0.65461710 +0.75174138
a 39.1479212 Node 50.25242 -0.69440536 -0.55625667
e 0.2242204 Incl. 5.95425 -0.29879366 -0.35420815
P 245 H 7.5 G 0.15 U 5
Residuals in seconds of arc
980428 568 0.1+ 0.0 980522 568 0.0 0.1+ 980701 568 0.1+ 0.0
980428 568 0.0 0.0 980522 568 0.0 0.1+ 990313 568 0.1+ 0.0
980428 568 0.0 0.0 980522 568 0.2- 0.1+ 990314 568 0.2+ 0.1+
980430 568 0.0 0.0 980629 568 0.0 0.1- 990408 568 0.1- 0.1-
980430 568 0.0 0.0 980630 568 0.0 0.1- 990408 568 0.2- 0.1+
Ephemeris:
1998 HK151 a,e,i = 39.15, 0.22, 6 q = 30.370
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 02 15 20.59 -18 37.8 29.390 30.379 168.6 0.4 22.3
1999 05 12 15 19.51 -18 34.2 29.369 30.379 178.5 0.0 22.3
1999 05 22 15 18.42 -18 30.5 29.378 30.379 171.6 0.3 22.3
1999 06 01 15 17.38 -18 26.9 29.415 30.380 161.7 0.6 22.4
1999 06 11 15 16.40 -18 23.6 29.480 30.380 151.9 0.9 22.4
1999 06 21 15 15.54 -18 20.7 29.572 30.380 142.2 1.2 22.4
1999 07 01 15 14.83 -18 18.3 29.685 30.381 132.4 1.4 22.5
1999 07 11 15 14.28 -18 16.5 29.819 30.381 122.8 1.6 22.5
1999 07 21 15 13.93 -18 15.5 29.968 30.382 113.2 1.8 22.5
1999 07 31 15 13.79 -18 15.3 30.128 30.382 103.6 1.9 22.5
1999 08 10 15 13.85 -18 15.9 30.295 30.382 94.0 1.9 22.6
1999 08 20 15 14.14 -18 17.3 30.463 30.383 84.5 1.9 22.6
1999 08 30 15 14.65 -18 19.6 30.630 30.383 75.0 1.8 22.6
1999 09 09 15 15.36 -18 22.7 30.788 30.384 65.4 1.7 22.6
1999 09 19 15 16.26 -18 26.5 30.935 30.384 55.9 1.6 22.6
1999 09 29 15 17.34 -18 30.9 31.067 30.385 46.4 1.4 22.6
1999 10 09 15 18.56 -18 35.9 31.178 30.385 36.9 1.1 22.5
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-J18
Read MPEC 1999-J17
Read MPEC 1999-J19
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)