438908 (2009 XO)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5433820901 ± 3.71e-09
Semi-major axis (a)1.8591254654 AU ± 2.64e-10
Inclination (i)0.34850554° ± 5.67e-07
Long. of Asc. Node (Ω)27.93296520° ± 4.48e-05
Arg. of Perihelion (ω)140.52573880° ± 4.48e-05
Mean Anomaly (M)83.10089395° ± 2.39e-07
Mean Motion (n)0.3888205647°/day ± 8.27e-11
Perihelion dist (q)0.84890998 AU ± 6.91e-09
Aphelion dist (Q)2.86934095 AU ± 6.92e-09
Orbital Period2.53491295 yr ± 5.39e-10
Physical Parameters
H (abs. magnitude)20.63
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.249″
Uncertainty0
Orbit TypeApollo
MOID0.001829 AU
Observations Used803
Radar Obs Used4
Oppositions7
Arc Total2009-2020
First Observation Used2009-12-09
Last Observation Used2020-07-12
Observations (840)
Date Type RA Dec Mag Band Observatory
2010-01-12 12:12:23 C 13 56 07.73 -07 34 43.3 18.1 c 704
2010-01-12 12:37:47 C 13 56 28.08 -07 36 45.9 o 291
2010-01-12 12:43:14 C 13 56 32.36 -07 37 13.0 o 291
2010-01-12 12:48:42 C 13 56 36.66 -07 37 40.2 o 291
2010-01-12 13:14:46 C 13 56 56.98 -07 39 47.4 c 926
2010-01-12 13:17:00 C 13 56 58.70 -07 39 58.1 c 926
2010-01-12 13:19:13 C 13 57 00.42 -07 40 08.9 c 926
2010-01-13 07:32:50 C 14 11 22.20 -09 04 07.5 u I20
2010-01-13 07:47:16 C 14 11 33.00 -09 05 13.4 u I20
2010-01-13 07:58:15 C 14 11 41.21 -09 06 03.1 u I20
2010-01-13 11:18:17 C 14 14 11.09 -09 22 54.1 o H21
2010-01-13 11:21:30 C 14 14 13.46 -09 23 08.5 o H21
2010-01-13 11:24:40 C 14 14 15.78 -09 23 22.5 o H21
2010-01-13 11:28:02 C 14 14 18.26 -09 23 37.6 o H21
2010-01-14 11:14:21 C 14 31 41.37 -11 02 53.3 c 926
2010-01-14 11:16:45 C 14 31 42.96 -11 03 01.7 c 926
2010-01-14 11:19:08 C 14 31 44.65 -11 03 11.4 c 926
2010-01-16 12:13:19 C 15 03 22.59 -13 52 03.8 o H01
2010-01-16 12:33:37 C 15 03 34.27 -13 53 05.2 o H01
2010-01-16 12:48:31 C 15 03 42.83 -13 53 50.5 o H01
2010-01-16 13:05:03 C 15 03 52.29 -13 54 40.0 o H01
2010-04-04 14:50:05 C 20 04 05.032 -20 37 17.68 o 568
2010-05-08 10:29:40 C 20 42 20.85 -18 46 41.7 o H01
2010-05-08 10:55:42 C 20 42 21.15 -18 46 40.9 o H01
2010-05-08 11:05:53 C 20 42 21.26 -18 46 40.8 o H01
2010-05-09 10:51:13 C 20 42 39.97 -18 46 00.3 o H01
2010-05-09 11:02:05 C 20 42 40.06 -18 46 00.0 o H01
2010-05-09 11:13:43 C 20 42 40.17 -18 45 59.9 o H01
2014-09-30 14:09:44 C 04 38 26.774 +22 15 38.30 t 568
2014-09-30 14:26:23 C 04 38 27.342 +22 15 39.74 t 568
2014-10-03 14:32:07 C 04 40 59.389 +22 21 18.58 t 568
2014-10-03 14:48:41 C 04 40 59.913 +22 21 19.90 t 568
2014-11-22 09:21:55 C 04 33 08.90 +22 31 43.3 q G96
2014-11-22 09:31:37 C 04 33 08.23 +22 31 42.2 q G96
2014-11-22 09:41:19 C 04 33 07.56 +22 31 41.3 q G96
2014-11-22 09:51:01 C 04 33 06.89 +22 31 40.1 q G96
2014-11-27 12:05:32 C 04 24 14.195 +22 16 56.88 L F51
2014-11-27 12:07:27 C 04 24 14.041 +22 16 56.59 L F51
2014-11-27 12:24:40 C 04 24 12.584 +22 16 53.92 L F51
2014-11-27 12:26:35 C 04 24 12.423 +22 16 53.68 L F51
2014-11-27 12:43:43 C 04 24 10.976 +22 16 50.86 L F51
2014-11-27 12:45:38 C 04 24 10.742 +22 16 49.55 L F51
2014-11-27 13:02:47 C 04 24 09.412 +22 16 48.44 L F51
2014-11-27 13:04:41 C 04 24 09.209 +22 16 47.61 L F51
2014-11-30 07:48:12 C 04 18 34.50 +22 06 14.4 q G96
2014-11-30 07:57:02 C 04 18 33.66 +22 06 12.9 q G96
2014-11-30 08:05:48 C 04 18 32.88 +22 06 11.4 q G96
2014-11-30 08:14:47 C 04 18 32.04 +22 06 09.7 q G96
2014-12-08 10:04:59 C 03 59 43.159 +21 24 33.81 L F51
2014-12-08 10:40:55 C 03 59 39.163 +21 24 23.96 L F51
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-05-03 19:40:00 157212.9187 0.04 Hz 2380 -1 -1
2020-05-03 20:27:00 35122568.63 4 us 2380 -1 -1
2020-05-03 21:35:00 34858545.6 0.5 us 2380 -1 -1
2020-05-07 23:53:00 22876321.67 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)