(161998) 1988 PA
Orbital Elements
The following orbital elements are taken from MPO122912(161998) 1988 PA Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC M 44.88189 (2000.0) P Q n 0.31337824 Peri. 137.39977 +0.49665059 +0.86685550 a 2.1466282 Node 162.23913 -0.82984076 +0.48896154 e 0.4065262 Incl. 8.21472 -0.25436687 +0.09735578 P 3.15 H 17.4 G 0.15 U 2 From 60 observations at 3 oppositions, 1988-2007, mean residual 0".70.An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2009 10 26 12 07.87 +00 01.6 3.225 2.425 30.8 12.1 22.6 2010 02 23 15 41.80 -12 21.4 1.445 1.861 98.0 31.8 20.9 2010 02 28 15 50.99 -12 17.8 1.371 1.835 100.8 32.0 20.8 2010 03 05 16 00.10 -12 09.5 1.298 1.809 103.6 32.2 20.6 2010 03 10 16 09.13 -11 56.2 1.227 1.783 106.4 32.3 20.5 2010 03 15 16 18.02 -11 37.6 1.158 1.757 109.2 32.3 20.3 2010 03 20 16 26.77 -11 13.5 1.091 1.731 112.0 32.2 20.1 2010 03 25 16 35.33 -10 43.8 1.027 1.705 114.8 32.1 20.0 2010 03 30 16 43.68 -10 08.1 0.965 1.679 117.6 31.8 19.8 2010 04 04 16 51.80 -09 26.5 0.905 1.654 120.4 31.5 19.6 2010 04 09 16 59.64 -08 38.6 0.848 1.628 123.1 31.0 19.4 2010 04 14 17 07.14 -07 44.6 0.794 1.603 125.9 30.5 19.2 2010 04 19 17 14.28 -06 44.6 0.743 1.578 128.6 29.8 19.0 2010 04 24 17 21.01 -05 38.7 0.694 1.554 131.3 29.1 18.8 2010 04 29 17 27.31 -04 27.5 0.649 1.530 133.9 28.3 18.6 2010 05 04 17 33.13 -03 11.4 0.606 1.506 136.4 27.5 18.4 2010 05 09 17 38.44 -01 51.3 0.567 1.484 138.8 26.6 18.2 2010 05 14 17 43.19 -00 28.4 0.531 1.462 141.0 25.8 18.0 2010 05 19 17 47.37 +00 55.5 0.497 1.440 143.0 25.0 17.8 2010 05 24 17 51.00 +02 18.6 0.467 1.420 144.8 24.3 17.6 2010 05 29 17 54.11 +03 38.8 0.440 1.400 146.3 23.7 17.5 2010 06 03 17 56.72 +04 53.6 0.415 1.382 147.4 23.3 17.3 2010 06 08 17 58.88 +06 00.0 0.393 1.365 148.2 23.1 17.1 2010 06 13 18 00.70 +06 55.0 0.374 1.349 148.6 23.1 17.0 2010 06 18 18 02.31 +07 35.6 0.357 1.334 148.7 23.3 16.9 2010 06 23 18 03.91 +07 59.2 0.343 1.321 148.6 23.6 16.8 2010 06 28 18 05.68 +08 03.7 0.330 1.309 148.2 24.1 16.7 2010 07 03 18 07.79 +07 47.4 0.320 1.299 147.7 24.7 16.6 2010 07 08 18 10.42 +07 09.2 0.312 1.290 147.2 25.3 16.6 2010 07 13 18 13.77 +06 08.9 0.307 1.284 146.6 25.9 16.6 2010 07 18 18 18.03 +04 47.5 0.303 1.279 145.9 26.4 16.5 2010 07 23 18 23.35 +03 07.2 0.302 1.275 145.3 27.0 16.5 2010 07 28 18 29.77 +01 11.1 0.303 1.274 144.6 27.5 16.6 2010 08 02 18 37.32 -00 57.1 0.306 1.275 143.8 28.1 16.6 2010 08 07 18 45.96 -03 12.9 0.312 1.277 142.9 28.6 16.7 2010 08 12 18 55.67 -05 31.6 0.321 1.281 141.9 29.2 16.7 2010 08 17 19 06.36 -07 48.0 0.333 1.287 140.7 29.9 16.9 2010 08 22 19 17.91 -09 57.7 0.347 1.295 139.4 30.6 17.0 2010 08 27 19 30.13 -11 57.1 0.365 1.304 137.9 31.3 17.1 2010 09 01 19 42.85 -13 43.5 0.386 1.315 136.3 32.0 17.3 2010 09 06 19 55.93 -15 15.1 0.410 1.328 134.6 32.7 17.5 2010 09 11 20 09.22 -16 31.0 0.437 1.342 132.8 33.4 17.6 2010 09 16 20 22.62 -17 31.0 0.467 1.358 130.9 34.1 17.8 2010 09 21 20 36.00 -18 15.5 0.500 1.374 128.9 34.6 18.0 2010 09 26 20 49.26 -18 45.6 0.536 1.392 126.9 35.1 18.2 2010 10 01 21 02.32 -19 02.5 0.575 1.411 124.9 35.6 18.4 2010 10 06 21 15.14 -19 07.4 0.617 1.431 122.8 35.9 18.6 2010 10 11 21 27.70 -19 01.4 0.661 1.452 120.7 36.2 18.8 2010 10 16 21 40.00 -18 46.0 0.709 1.474 118.6 36.4 19.0 2010 10 21 21 52.03 -18 22.2 0.758 1.496 116.5 36.6 19.2 2010 10 26 22 03.76 -17 51.3 0.811 1.520 114.3 36.6 19.3 2010 10 31 22 15.22 -17 14.3 0.866 1.543 112.1 36.6 19.5 2010 11 05 22 26.43 -16 31.9 0.923 1.567 109.8 36.5 19.7 2010 11 10 22 37.40 -15 45.1 0.983 1.592 107.6 36.4 19.9 2010 11 15 22 48.16 -14 54.4 1.045 1.617 105.3 36.2 20.0 2010 11 20 22 58.71 -14 00.6 1.108 1.642 103.0 35.9 20.2 2010 11 25 23 09.07 -13 04.2 1.174 1.668 100.7 35.6 20.3 2010 11 30 23 19.26 -12 05.7 1.242 1.694 98.3 35.2 20.5
