163899 (2003 SD220)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2094327850 ± 2.00e+00
Semi-major axis (a)0.8278931102 AU ± 3.00e+00
Inclination (i)8.54810646° ± 4.00e+00
Long. of Asc. Node (Ω)273.62717573° ± 5.00e+00
Arg. of Perihelion (ω)327.01925779° ± 6.00e+00
Mean Anomaly (M)291.89854679° ± 4.58e-06
Mean Motion (n)1.3084311461°/day ± 7.11e+00
Perihelion dist (q)0.65450515 AU ± 2.89e+00
Aphelion dist (Q)1.00128107 AU ± 3.99e+00
Orbital Period0.75328861 yr ± 4.09e+00
NGA Modelr2
A22.09664515e-06 AU/d²
Physical Parameters
H (abs. magnitude)17.56
G (slope)0.15
Alternative Designations

2000 AD229

Orbit Solution
SourceIAA
Solution Date2026-04-28
RMS Residual0.291″
Uncertainty0
Orbit TypeAten
MOID0.018230 AU
Observations Used1713
Oppositions8
Arc Total2000-2025
First Observation Used2000-01-07
Last Observation Used2025-01-27
Observations (1943)
Date Type RA Dec Mag Band Observatory
2006-11-19 11:22:38 C 10 47 26.04 +13 59 04.8 19.0 c 704
2006-11-19 11:40:39 C 10 47 28.74 +13 58 33.2 19.0 c 704
2006-11-22 10:33:24 C 10 58 28.41 +11 52 30.8 16.7 c 704
2006-11-22 10:51:29 C 10 58 31.15 +11 51 58.3 17.0 c 704
2006-11-22 11:09:34 C 10 58 33.93 +11 51 25.4 17.2 c 704
2006-11-22 11:27:38 C 10 58 36.66 +11 50 52.9 16.9 c 704
2006-11-22 11:45:42 C 10 58 39.42 +11 50 19.9 17.1 c 704
2006-11-24 12:00:34 C 11 06 17.10 +10 20 42.4 c 691
2006-11-24 12:18:29 C 11 06 19.88 +10 20 08.4 c 691
2006-11-24 12:36:23 C 11 06 22.62 +10 19 34.9 c 691
2006-11-26 11:39:31 C 11 13 56.84 +08 49 10.6 c 691
2006-11-26 11:57:26 C 11 13 59.65 +08 48 35.9 c 691
2006-11-26 12:15:21 C 11 14 02.45 +08 48 01.2 c 691
2006-12-21 06:16:48 C 13 05 09.48 -13 22 43.5 c 844
2006-12-21 06:20:23 C 13 05 10.18 -13 22 50.6 c 844
2006-12-21 06:24:12 C 13 05 11.11 -13 23 00.2 c 844
2006-12-21 06:29:13 C 13 05 12.06 -13 23 12.1 c 844
2006-12-21 06:37:52 C 13 05 14.05 -13 23 32.7 c 844
2006-12-28 06:23:26 C 13 43 30.75 -19 44 27.2 c 844
2006-12-28 06:27:14 C 13 43 31.41 -19 44 35.9 c 844
2006-12-28 06:36:08 C 13 43 33.62 -19 44 56.2 c 844
2006-12-28 06:39:41 C 13 43 34.37 -19 45 03.6 c 844
2006-12-28 06:42:35 C 13 43 35.12 -19 45 09.1 c 844
2006-12-28 06:50:59 C 13 43 37.17 -19 45 28.8 c 844
2006-12-28 06:54:57 C 13 43 37.95 -19 45 35.7 c 844
2006-12-28 07:02:16 C 13 43 39.69 -19 45 52.7 c 844
2009-09-11 11:06:46 C 07 16 12.14 +42 00 21.1 r 703
2009-09-11 11:14:01 C 07 16 12.75 +42 00 19.2 r 703
2009-09-11 11:21:13 C 07 16 13.33 +42 00 18.5 r 703
2009-09-11 11:28:25 C 07 16 14.05 +42 00 17.6 r 703
2009-10-16 02:08:17 C 08 50 42.44 +35 27 19.6 17.3 o C20
2009-10-16 02:12:23 C 08 50 42.92 +35 27 16.3 17.2 o C20
2009-10-17 02:19:57 C 08 53 44.23 +35 08 31.9 17.9 o C20
2009-10-17 02:24:03 C 08 53 44.71 +35 08 28.7 17.8 o C20
2009-10-18 10:19:43 C 08 57 46.16 +34 42 57.2 18.9 c 704
2009-10-18 10:38:47 C 08 57 48.42 +34 42 41.9 19.5 c 704
2009-10-18 10:57:50 C 08 57 50.82 +34 42 26.8 19.5 c 704
2009-10-18 11:17:12 C 08 57 53.22 +34 42 11.9 19.6 c 704
2009-10-18 11:36:16 C 08 57 55.37 +34 41 57.6 19.5 c 704
2009-10-28 22:15:15 C 09 29 58.58 +30 49 05.6 17.7 o C20
2009-10-28 22:21:36 C 09 29 59.30 +30 49 00.3 18.1 o C20
2009-10-31 09:52:08 C 09 37 45.84 +29 44 38.5 17.9 c 704
2009-10-31 10:11:09 C 09 37 48.27 +29 44 18.4 18.0 c 704
2009-10-31 10:30:12 C 09 37 50.70 +29 43 58.1 18.2 c 704
2009-10-31 10:49:13 C 09 37 53.10 +29 43 37.0 17.9 c 704
2009-10-31 11:08:15 C 09 37 55.49 +29 43 16.4 18.0 c 704
2009-11-05 22:24:51 C 09 55 23.13 +27 06 11.1 18.6 o C20
2009-11-05 22:31:11 C 09 55 23.98 +27 06 03.2 18.0 o C20
2009-11-23 00:15:21 C 10 53 44.65 +16 20 39.7 19.5 o C20
2009-11-23 00:17:34 C 10 53 44.99 +16 20 35.5 20.1 o C20
Radar Observations (25)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-11-29 10:46:00 85804.8994 0.1 Hz 2380 -1 -1
2015-11-29 11:30:00 126373337.75 4 us 2380 -1 -1
2015-12-05 09:40:00 108455005.78 4 us 8560 -14 -14
2015-12-05 11:04:00 108261765.32 1 us 2380 -1 -1
2015-12-14 11:10:00 84753323.82 2 us 2380 -1 -1
2015-12-19 10:40:00 144052.671 0.2 Hz 8560 -14 -14
2018-08-25 17:09:00 72876.4566 0.03 Hz 2380 -1 -1
2018-11-26 13:40:00 316057.557 0.1 Hz 8560 -14 -14
2018-11-26 14:40:00 89575535 4 us 8560 -14 -14
2018-12-09 09:30:00 48541869.19 1.25 us 8560 -14 -14
2018-12-12 11:20:00 38887792.7 1 us 8560 -14 -14
2018-12-15 12:30:00 29956646.53 0.4 us 8560 -14 -14
2018-12-17 11:20:00 24970431.7 2.5 us 8560 -14 -14
2021-11-22 07:30:00 86215626 1 us 8560 -14 -14
2021-11-30 12:30:00 64811312.27 1.5 us 8560 -14 -14
2021-12-16 07:10:00 28727.135 0.1 Hz 7159.45 -47 -43
2021-12-20 09:20:00 -72269.335 0.13 Hz 7159.45 -47 -36
2021-12-21 07:35:00 -85033.283 0.19 Hz 7159.45 -47 -43
2021-12-29 01:40:00 51121148 3 us 8560 -14 -14
2024-10-28 04:30:00 126490579.88 1.5 us 8560 -14 -14
2024-11-23 02:20:00 70891.529 0.1 Hz 8560 -14 -14
2024-11-23 02:40:00 91920286.66 4 us 8560 -14 -14
2024-12-06 05:30:00 88740443.05 2.5 us 8560 -14 -14
2024-12-09 04:00:00 90039540.33 2 us 8560 -14 -14
2024-12-30 02:20:00 114803979 1.5 us 8560 -14 -14
Station codes
-47 DSS-47 ATCA (W196) -43 DSS-43 Tidbinbilla (70-m) -36 DSS-36 Tidbinbilla (34-m) -14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)