MPEC 2007-O08 : 2005 PL21, 2005 PS21, 2006 HB123
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 2007-O07
Read MPEC 2007-O09
M.P.E.C. 2007-O08 Issued 2007 July 18, 01:40 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://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
2005 PL21, 2005 PS21, 2006 HB123
Revision to MPEC 2005-T99, 2005-T102, 2006-L42
Additional Observations:
K05P21L C2006 08 21.16475 21 30 01.84 -19 48 42.1 22.1 R EO008807
K05P21L C2006 08 21.25662 21 30 01.40 -19 48 43.9 EO008807
K05P21L C2006 08 22.16026 21 29 57.20 -19 49 01.7 EO008807
K05P21L C2007 07 11.34205 21 38 23.91 -19 06 25.9 EO008304
K05P21L C2007 07 11.39325 21 38 23.72 -19 06 26.9 EO008304
K05P21S C2006 08 21.18123 22 36 34.01 -07 18 26.3 21.8 R EO008807
K05P21S C2006 08 21.27218 22 36 33.63 -07 18 28.7 EO008807
K05P21S C2007 07 11.35529 22 43 30.51 -06 40 10.8 EO008304
K05P21S C2007 07 11.40631 22 43 30.39 -06 40 11.4 EO008304
K06HC3B C2007 04 22.27105 15 24 03.89 -16 55 19.2 22.6 R EO008807
K06HC3B C2007 04 22.33864 15 24 03.54 -16 55 18.4 EO008807
K06HC3B C2007 07 12.01225 15 18 18.58 -16 34 53.0 EO008304
K06HC3B C2007 07 12.09877 15 18 18.38 -16 34 52.5 EO008304
Observer details:
304 Las Campanas Observatory. Observers S. D. Kern, A. Springmann. Measurer
S. D. Kern. Baade 6.5-m reflector + CCD.
807 Cerro Tololo. Observer L. H. Wasserman. Measurers L. H. Wasserman,
M. W. Buie. 4.0-m f/2.87 reflector + CCD.
Orbital elements:
2005 PL21
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 51.13490 (2000.0) P Q
n 0.00309119 Peri. 215.96307 -0.27114940 +0.96117031
a 46.6715124 Node 38.37840 -0.86269419 -0.21905001
e 0.1415124 Incl. 4.73780 -0.42689194 -0.16783541
P 319 H 6.2 G 0.15 U 6
Residuals in seconds of arc
K0588 807 0.0 0.0 K068L 807 0.0 0.3- K077B 304 0.1- 0.0
K0588 807 0.0 0.1+ K068L 807 0.0 0.2- K077B 304 0.0 0.1+
K0589 807 0.1- 0.1- K068M 807 0.1- 0.4+
2005 PS21
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 266.49803 (2000.0) P Q
n 0.00332470 Peri. 252.21367 +0.16089093 -0.98694915
a 44.4598088 Node 188.53619 +0.92186644 +0.15271465
e 0.0772956 Incl. 2.60386 +0.35252854 +0.05108427
P 296 H 6.2 G 0.15 U 4
Residuals in seconds of arc
K0589 807 0.2- 0.1+ K05B3 695 0.1+ 0.1- K068L 807 0.1+ 0.2-
K058A 807 0.0 0.1+ K05B3 695 0.1+ 0.1- K077B 304 0.1- 0.0
K058A 807 0.0 0.2+ K068L 807 0.0 0.1- K077B 304 0.0 0.1+
2006 HB123
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 MPC
M 352.89317 (2000.0) P Q
n 0.00333025 Peri. 125.26678 -0.48364333 +0.87480747
a 44.4104584 Node 115.78581 -0.81290314 -0.43696222
e 0.0962576 Incl. 1.80122 -0.32446511 -0.20922692
P 296 H 6.9 G 0.15 U 6
Residuals in seconds of arc
K064S 807 0.1- 0.0 K0652 695 0.1- 0.9- K074M 807 0.2+ 0.2+
K064S 807 0.0 0.2+ K068L 807 0.2+ 0.3+ K074M 807 0.2- 0.2-
K0651 695 0.1+ 0.3+ K068M 807 0.1- 0.0 K077C 304 0.0 0.1-
K0651 695 0.1+ 0.0 K068N 807 0.0 0.2+ K077C 304 0.0 0.1-
Ephemerides:
2005 PL21 a,e,i = 46.67, 0.14, 5 q = 40.067
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 07 09 21 38.54 -19 05.6 42.361 43.202 145.4 0.8 22.6
2007 07 19 21 37.90 -19 09.3 42.282 43.205 155.0 0.6 22.6
2007 07 29 21 37.19 -19 13.1 42.230 43.209 164.4 0.4 22.6
2007 08 08 21 36.43 -19 16.9 42.205 43.212 173.0 0.2 22.6
2007 08 18 21 35.65 -19 20.6 42.209 43.215 173.3 0.2 22.6
2007 08 28 21 34.88 -19 24.1 42.243 43.218 164.8 0.4 22.6
2007 09 07 21 34.15 -19 27.1 42.305 43.222 155.2 0.6 22.6
2007 09 17 21 33.48 -19 29.7 42.393 43.225 145.5 0.8 22.6
2007 09 27 21 32.90 -19 31.7 42.506 43.228 135.6 0.9 22.7
2007 10 07 21 32.43 -19 32.9 42.640 43.232 125.7 1.1 22.7
2007 10 17 21 32.09 -19 33.5 42.791 43.235 115.8 1.2 22.7
2007 10 27 21 31.89 -19 33.3 42.956 43.238 105.9 1.3 22.7
2007 11 06 21 31.85 -19 32.3 43.128 43.241 95.9 1.3 22.7
2007 11 16 21 31.96 -19 30.5 43.304 43.245 85.9 1.3 22.7
2007 11 26 21 32.24 -19 28.0 43.477 43.248 75.9 1.3 22.7
2007 12 06 21 32.67 -19 24.9 43.643 43.251 66.0 1.2 22.8
2007 12 16 21 33.24 -19 21.1 43.798 43.255 56.0 1.1 22.7
2007 12 26 21 33.94 -19 16.8 43.935 43.258 46.0 0.9 22.7
2008 01 05 21 34.76 -19 12.1 44.052 43.261 36.1 0.8 22.7
2005 PS21 a,e,i = 44.46, 0.08, 3 q = 41.023
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 07 09 22 43.60 -06 39.7 44.302 44.914 126.5 1.0 22.9
2007 07 19 22 43.18 -06 42.1 44.174 44.912 136.1 0.9 22.8
2007 07 29 22 42.66 -06 45.1 44.067 44.910 145.8 0.7 22.8
2007 08 08 22 42.06 -06 48.6 43.983 44.908 155.5 0.5 22.8
2007 08 18 22 41.40 -06 52.6 43.926 44.906 165.3 0.3 22.8
2007 08 28 22 40.71 -06 56.8 43.898 44.904 175.0 0.1 22.7
2007 09 07 22 40.01 -07 01.1 43.898 44.902 174.8 0.1 22.7
2007 09 17 22 39.32 -07 05.4 43.928 44.900 165.0 0.3 22.8
2007 09 27 22 38.66 -07 09.5 43.987 44.898 155.1 0.5 22.8
2007 10 07 22 38.08 -07 13.2 44.073 44.896 145.1 0.7 22.8
2007 10 17 22 37.57 -07 16.5 44.183 44.894 135.1 0.9 22.8
2007 10 27 22 37.18 -07 19.2 44.314 44.892 125.0 1.0 22.9
2007 11 06 22 36.90 -07 21.2 44.463 44.890 115.0 1.1 22.9
2007 11 16 22 36.76 -07 22.5 44.624 44.888 104.9 1.2 22.9
2007 11 26 22 36.76 -07 22.9 44.793 44.886 94.8 1.3 22.9
2007 12 06 22 36.90 -07 22.4 44.965 44.885 84.7 1.3 22.9
2007 12 16 22 37.19 -07 21.1 45.134 44.883 74.6 1.2 22.9
2007 12 26 22 37.61 -07 19.0 45.295 44.881 64.5 1.1 22.9
2008 01 05 22 38.16 -07 16.1 45.443 44.879 54.5 1.0 22.9
2008 01 15 22 38.82 -07 12.4 45.573 44.877 44.5 0.9 22.9
2008 01 25 22 39.57 -07 08.2 45.682 44.875 34.5 0.7 22.9
2006 HB123 a,e,i = 44.41, 0.10, 2 q = 40.136
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 07 09 15 18.43 -16 35.2 39.577 40.172 125.2 1.2 23.1
2007 07 19 15 18.09 -16 34.3 39.722 40.172 115.6 1.3 23.1
2007 07 29 15 17.90 -16 34.0 39.880 40.172 106.0 1.4 23.1
2007 08 08 15 17.87 -16 34.4 40.045 40.171 96.5 1.4 23.1
2007 08 18 15 18.01 -16 35.4 40.213 40.171 86.9 1.4 23.1
2007 08 28 15 18.31 -16 37.0 40.380 40.171 77.3 1.4 23.1
2007 09 07 15 18.77 -16 39.2 40.540 40.170 67.8 1.3 23.1
2007 09 17 15 19.38 -16 41.9 40.690 40.170 58.2 1.2 23.1
2007 09 27 15 20.13 -16 45.1 40.825 40.170 48.6 1.1 23.1
2007 10 07 15 20.99 -16 48.7 40.941 40.169 39.0 0.9 23.1
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-O08
Read MPEC 2007-O07
Read MPEC 2007-O09
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)