MPEC 2006-T35 : 2005 PR21, 2005 PT21, 2005 PU21, 2005 TN74
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M.P.E.C. 2006-T35 Issued 2006 Oct. 5, 21:40 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2005 PR21, 2005 PT21, 2005 PU21, 2005 TN74
Revision to MPEC 2005-T100, 2005-U97
Additional Observations:
K05P21R C2006 08 21.18518 22 35 46.64 -08 54 31.2 20.5 R ET035807
K05P21R C2006 08 21.27601 22 35 46.24 -08 54 33.6 ET035807
K05P21R C2006 08 22.18022 22 35 42.09 -08 54 57.3 ET035807
K05P21R C2006 09 24.18326 22 33 13.29 -09 09 24.3 22.2 R ET035688
K05P21R C2006 09 24.27712 22 33 12.92 -09 09 26.6 ET035688
K05P21T C2006 08 22.22873 22 51 32.78 -04 58 16.1 22.2 R ET035807
K05P21T C2006 08 23.15560 22 51 28.94 -04 58 41.0 ET035807
K05P21T C2006 08 23.22281 22 51 28.63 -04 58 43.0 ET035807
K05P21U C2006 08 22.23316 22 57 22.98 -03 23 43.9 21.2 R ET035807
K05P21U C2006 08 23.15943 22 57 19.33 -03 24 06.5 ET035807
K05P21U C2006 08 23.22656 22 57 19.06 -03 24 08.1 ET035807
K05T74N C2006 08 21.23514 00 38 10.66 +03 41 54.7 21.3 R ET035807
K05T74N C2006 08 21.30780 00 38 10.38 +03 41 52.8 ET035807
K05T74N C2006 08 22.21439 00 38 07.05 +03 41 30.3 ET035807
Observer details:
688 Lowell Observatory, Anderson Mesa Station. Observer L. H. Wasserman.
1.8-m Perkins telescope + CCD.
807 Cerro Tololo. Observer L. H. Wasserman. Measurers L. H. Wasserman,
M. W. Buie. 4.0-m f/2.9 reflector + CCD.
Orbital elements:
2005 PR21
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 40.46970 (2000.0) P Q
n 0.00335852 Peri. 308.70698 +0.30624758 +0.95191542
a 44.1608493 Node 339.12168 -0.86597942 +0.27494337
e 0.1069274 Incl. 1.33999 -0.39533791 +0.13514132
P 293 H 5.9 G 0.15 U 5
Residuals in seconds of arc
K0589 807 0.1- 0.1+ K05B3 695 0.1- 0.0 K068M 807 0.1- 0.3+
K058A 807 0.0 0.1+ K05CN 568 0.1+ 0.0 K069O 688 0.2- 0.1+
K058A 807 0.0 0.1+ K05CN 568 0.1- 0.1- K069O 688 0.2+ 0.0
K05B2 695 0.1+ 0.2- K068L 807 0.1- 0.2-
K05B2 695 0.0 0.1- K068L 807 0.2+ 0.2-
2005 PT21
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 18.44873 (2000.0) P Q
n 0.00162880 Peri. 109.52122 +0.28695511 +0.95791916
a 71.5414796 Node 177.12760 -0.92242862 +0.27825299
e 0.4885722 Incl. 7.91713 -0.25842252 +0.07047094
P 605 H 7.4 G 0.15 U 5
Residuals in seconds of arc
K0589 807 0.1+ 0.1+ K05AS 568 0.2+ 0.1+ K068M 807 0.0 0.0
K058A 807 0.1- 0.1- K05B2 695 0.1+ 0.0 K068N 807 0.2+ 0.1+
K058A 807 0.0 0.1- K05B3 695 0.1+ 0.1- K068N 807 0.2- 0.1-
K05AS 568 0.1- 0.1- K05B3 695 0.2- 0.1+
2005 PU21
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 354.65506 (2000.0) P Q
n 0.00043117 Peri. 227.97864 +0.49461056 -0.86880481
a 173.5273707 Node 192.43868 +0.82584764 +0.47814008
e 0.8315274 Incl. 6.18535 +0.27080632 +0.12868673
P 2290 H 6.2 G 0.15 U 5
Residuals in seconds of arc
K0589 807 0.1- 0.1+ K05AS 568 0.1- 0.1+ K068M 807 0.1- 0.3-
K058A 807 0.1+ 0.1- K05B2 695 0.1- 0.2+ K068N 807 0.1+ 0.1+
K058A 807 0.1+ 0.1- K05B3 695 0.1+ 0.0 K068N 807 0.1+ 0.2+
K05AS 568 0.1- 0.0 K05B3 695 0.1+ 0.2-
2005 TN74
Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 MPC
M 341.00210 (2000.0) P Q
n 0.00360721 Peri. 220.68670 +0.76698245 -0.64166787
a 42.1070959 Node 179.22905 +0.59813169 +0.71465499
e 0.2306769 Incl. 2.17716 +0.23232822 +0.27844315
P 273 H 7.2 G 0.15 U 7
Residuals in seconds of arc
K05A8 304 0.0 0.4+ K05B3 304 0.2- 0.1- K05BS 304 0.1- 0.2-
K05A8 304 0.1- 0.4+ K05B3 304 0.5+ 0.6+ K05BU 304 0.0 0.3+
K05A8 304 0.3- 0.2+ K05B4 304 0.5+ 0.3+ K068L 807 0.1+ 0.1+
K05AP 304 0.6+ 1.1- K05B4 304 0.7- 0.4- K068L 807 0.1- 0.0
K05AP 304 0.1- 0.4- K05BS 304 0.2+ 0.0 K068M 807 0.1+ 0.1+
Ephemerides:
2005 PR21 a,e,i = 44.16, 0.11, 1 q = 39.439
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 10 02 22 32.71 -09 12.4 39.961 40.811 147.8 0.7 22.1
2006 10 12 22 32.13 -09 15.7 40.069 40.814 137.8 0.9 22.1
2006 10 22 22 31.66 -09 18.4 40.199 40.816 127.8 1.1 22.1
2006 11 01 22 31.31 -09 20.4 40.347 40.818 117.7 1.2 22.2
2006 11 11 22 31.12 -09 21.4 40.509 40.820 107.6 1.3 22.2
2006 11 21 22 31.07 -09 21.6 40.681 40.822 97.5 1.4 22.2
2006 12 01 22 31.19 -09 20.9 40.856 40.824 87.5 1.4 22.2
2006 12 11 22 31.46 -09 19.2 41.030 40.826 77.4 1.3 22.2
2006 12 21 22 31.89 -09 16.6 41.198 40.828 67.3 1.3 22.2
2006 12 31 22 32.46 -09 13.2 41.354 40.831 57.3 1.2 22.2
2007 01 10 22 33.16 -09 09.0 41.493 40.833 47.3 1.0 22.2
2007 01 20 22 33.97 -09 04.2 41.613 40.835 37.3 0.8 22.2
2005 PT21 a,e,i = 71.54, 0.49, 8 q = 36.588
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 10 02 22 48.75 -05 17.2 41.738 42.632 152.9 0.6 23.8
2006 10 12 22 48.18 -05 21.3 41.841 42.641 142.9 0.8 23.8
2006 10 22 22 47.70 -05 24.9 41.967 42.651 132.9 1.0 23.8
2006 11 01 22 47.35 -05 27.9 42.114 42.660 122.8 1.1 23.8
2006 11 11 22 47.12 -05 30.1 42.277 42.669 112.7 1.2 23.9
2006 11 21 22 47.03 -05 31.5 42.452 42.679 102.6 1.3 23.9
2006 12 01 22 47.10 -05 32.0 42.633 42.688 92.5 1.3 23.9
2006 12 11 22 47.31 -05 31.6 42.816 42.698 82.4 1.3 23.9
2006 12 21 22 47.67 -05 30.2 42.995 42.707 72.4 1.3 23.9
2006 12 31 22 48.17 -05 28.0 43.164 42.716 62.3 1.2 23.9
2007 01 10 22 48.80 -05 24.9 43.320 42.726 52.3 1.0 23.9
2007 01 20 22 49.54 -05 21.1 43.458 42.735 42.3 0.9 23.9
2007 01 30 22 50.38 -05 16.6 43.573 42.745 32.4 0.7 23.9
2005 PU21 a,e,i = 173.53, 0.83, 6 q = 29.235
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 10 02 22 54.68 -03 41.7 43.923 44.830 154.8 0.5 22.8
2006 10 12 22 54.12 -03 45.8 43.992 44.811 144.8 0.7 22.8
2006 10 22 22 53.64 -03 49.5 44.085 44.792 134.8 0.9 22.8
2006 11 01 22 53.27 -03 52.6 44.200 44.773 124.8 1.0 22.8
2006 11 11 22 53.02 -03 55.0 44.332 44.754 114.7 1.2 22.9
2006 11 21 22 52.91 -03 56.6 44.476 44.735 104.6 1.2 22.9
2006 12 01 22 52.93 -03 57.4 44.629 44.716 94.5 1.3 22.9
2006 12 11 22 53.10 -03 57.4 44.783 44.697 84.4 1.3 22.9
2006 12 21 22 53.41 -03 56.4 44.935 44.678 74.3 1.2 22.9
2006 12 31 22 53.86 -03 54.5 45.078 44.659 64.2 1.1 22.9
2007 01 10 22 54.43 -03 51.8 45.208 44.640 54.2 1.0 22.9
2007 01 20 22 55.11 -03 48.4 45.321 44.621 44.2 0.9 22.9
2007 01 30 22 55.88 -03 44.2 45.413 44.602 34.3 0.7 22.9
2005 TN74 a,e,i = 42.11, 0.23, 2 q = 32.394
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2006 10 02 00 34.82 +03 19.7 32.263 33.263 179.2 0.0 22.4
2006 10 12 00 33.92 +03 13.8 32.275 33.260 170.6 0.3 22.4
2006 10 22 00 33.05 +03 08.1 32.317 33.257 160.5 0.6 22.5
2006 11 01 00 32.25 +03 02.9 32.388 33.254 150.3 0.8 22.5
2006 11 11 00 31.55 +02 58.3 32.486 33.251 140.1 1.1 22.5
2006 11 21 00 30.97 +02 54.6 32.606 33.248 129.8 1.3 22.6
2006 12 01 00 30.55 +02 51.8 32.746 33.244 119.6 1.5 22.6
2006 12 11 00 30.31 +02 50.3 32.901 33.241 109.4 1.6 22.6
2006 12 21 00 30.25 +02 49.8 33.067 33.238 99.2 1.7 22.6
2006 12 31 00 30.38 +02 50.7 33.237 33.235 89.0 1.7 22.6
2007 01 10 00 30.70 +02 52.8 33.407 33.232 78.9 1.7 22.6
2007 01 20 00 31.20 +02 56.0 33.570 33.229 68.9 1.6 22.6
2007 01 30 00 31.88 +03 00.4 33.724 33.226 58.9 1.5 22.6
2007 02 09 00 32.72 +03 05.7 33.861 33.222 49.0 1.3 22.6
2007 02 19 00 33.69 +03 11.9 33.980 33.219 39.1 1.1 22.6
The 3:5 Neptune librator 2005 TN74 remains more than 16 AU from Neptune
over a 14 000-year period. (The words "from Neptune" were accidentally
omitted from the last sentence of MPEC 2006-T34.)
Brian G. Marsden (C) Copyright 2006 MPC M.P.E.C. 2006-T35
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