IAA RAS IAA Minor Planet Database

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
2020-05-22 17:54:50 C 15 21 50.00 -20 26 20.1 – Y 190
2020-05-22 17:55:49 C 15 21 50.10 -20 26 20.0 – Y 190
2020-05-22 17:56:47 C 15 21 50.21 -20 26 20.7 – Y 190
2020-05-23 09:29:00 C 15 23 45.415 -20 30 32.52 – U F51
2020-05-23 09:46:38 C 15 23 47.149 -20 30 37.32 – U F51
2020-05-23 10:04:14 C 15 23 48.882 -20 30 42.03 – U F51
2020-05-23 18:29:31 C 15 24 49.67 -20 32 57.5 – t M43
2020-05-23 18:34:43 C 15 24 50.19 -20 32 59.0 – t M43
2020-05-23 18:39:57 C 15 24 50.65 -20 33 00.5 – t M43
2020-05-23 18:45:10 C 15 24 51.15 -20 33 01.9 – t M43
2020-05-23 18:50:23 C 15 24 51.68 -20 33 03.7 – t M43
2020-05-23 20:34:48 C 15 25 00.72 -20 33 39.4 – Y 190
2020-05-23 20:35:51 C 15 25 00.80 -20 33 39.4 – Y 190
2020-05-23 20:39:01 C 15 25 01.14 -20 33 40.0 – Y 190
2020-05-23 20:41:08 C 15 25 01.31 -20 33 40.9 – Y 190
2020-05-23 20:42:12 C 15 25 01.38 -20 33 40.4 – Y 190
2020-05-23 20:44:18 C 15 25 01.62 -20 33 41.3 – Y 190
2020-05-23 20:46:25 C 15 25 01.78 -20 33 40.7 – Y 190
2020-05-23 20:49:35 C 15 25 02.11 -20 33 41.7 – Y 190
2020-05-23 20:51:42 C 15 25 02.32 -20 33 43.1 – Y 190
2020-05-23 20:54:52 C 15 25 02.61 -20 33 41.7 – Y 190
2020-05-23 20:55:55 C 15 25 02.80 -20 33 42.0 – Y 190
2020-05-23 20:56:58 C 15 25 02.84 -20 33 43.1 – Y 190
2020-05-23 20:58:01 C 15 25 03.00 -20 33 42.1 – Y 190
2020-05-23 21:01:11 C 15 25 03.23 -20 33 44.3 – Y 190
2020-05-23 21:07:31 C 15 25 03.92 -20 33 46.4 – Y 190
2020-05-23 21:13:52 C 15 25 04.50 -20 33 47.3 – Y 190
2020-05-24 11:03:34 C 15 26 36.24 -20 36 57.0 – V T05
2020-05-24 11:07:37 C 15 26 36.58 -20 36 57.8 – V T05
2020-05-24 11:08:56 C 15 26 36.65 -20 36 57.8 – V T05
2020-05-24 11:15:36 C 15 26 37.28 -20 36 59.5 – V T05
2020-05-24 11:30:11 C 15 26 38.58 -20 37 02.1 – V T05
2020-05-24 11:33:31 C 15 26 38.85 -20 37 02.5 – V T05
2020-05-26 07:46:32 C 15 30 55.36 -20 46 17.7 – V G96
2020-05-26 07:51:14 C 15 30 55.69 -20 46 18.6 – V 703
2020-05-26 07:54:10 C 15 30 55.92 -20 46 18.8 – V G96
2020-05-26 07:59:06 C 15 30 56.26 -20 46 19.6 – V 703
2020-05-26 08:01:46 C 15 30 56.48 -20 46 19.9 – V G96
2020-05-26 08:06:58 C 15 30 56.93 -20 46 20.0 – V 703
2020-05-26 08:09:24 C 15 30 57.03 -20 46 21.1 – V G96
2020-05-26 08:14:51 C 15 30 57.48 -20 46 21.8 – V 703
2020-05-26 09:37:46 C 15 31 06.15 -20 46 29.5 – V T08
2020-05-26 09:45:46 C 15 31 06.71 -20 46 30.8 – V T08
2020-05-26 09:52:25 C 15 31 07.17 -20 46 31.8 – V T08
2020-05-26 10:11:44 C 15 31 08.51 -20 46 35.1 – V T08
2020-05-28 10:11:24 C 15 34 57.67 -20 54 17.2 – V T05
2020-05-28 10:16:01 C 15 34 57.92 -20 54 17.9 – V T05
2020-05-28 10:23:58 C 15 34 58.40 -20 54 18.8 – V T05
2020-05-28 10:38:37 C 15 34 59.23 -20 54 20.8 – V T05
2020-05-29 08:49:22 C 15 36 34.30 -20 57 22.1 – V T05
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)