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
2020-05-06 06:32:29 C 08 54 18.36 +12 58 49.1 V T05
2020-05-06 17:54:32 C 09 25 02.65 +10 15 53.4 V C40
2020-05-06 18:14:24 C 09 25 56.82 +10 10 47.1 V C40
2020-05-06 18:14:44 C 09 25 57.73 +10 10 41.7 V C40
2020-05-06 18:52:50 C 09 27 42.09 +10 00 50.6 V C40
2020-05-06 18:55:04 C 09 27 48.23 +10 00 15.6 V C40
2020-05-06 18:57:38 C 09 27 55.27 +09 59 35.7 V C40
2020-05-06 18:58:17 C 09 27 57.06 +09 59 25.5 V C40
2020-05-06 20:31:57 C 09 32 24.06 +09 34 41.3 V K85
2020-05-06 20:51:41 C 09 33 18.65 +09 29 27.8 V K85
2020-05-06 20:51:47 n 09 33 20.45 +09 29 41.4 q Z43
2020-05-06 20:51:57 C 09 33 18.17 +09 29 33.7 q B69
2020-05-06 20:54:35 C 09 33 25.50 +09 28 50.4 q B69
2020-05-06 20:55:31 n 09 33 30.78 +09 28 42.1 q Z43
2020-05-06 21:00:27 n 09 33 44.40 +09 27 23.5 q Z43
2020-05-06 21:00:46 C 09 33 42.74 +09 27 11.5 q B69
2020-05-06 21:02:37 C 09 33 47.97 +09 26 42.4 q B69
2020-05-06 21:13:46 n 09 34 21.25 +09 23 51.7 q Z43
2020-05-06 21:34:53 C 09 35 20.10 +09 17 57.9 V Z80
2020-05-06 21:39:27 n 09 35 32.54 +09 17 00.5 q Z43
2020-05-06 21:39:53 C 09 35 34.07 +09 16 38.5 V Z80
2020-05-06 21:41:43 C 09 35 39.36 +09 16 09.5 V J95
2020-05-06 21:43:32 C 09 35 44.42 +09 15 39.7 V J95
2020-05-06 21:44:53 C 09 35 47.98 +09 15 17.5 V Z80
2020-05-06 21:45:20 C 09 35 49.45 +09 15 10.9 V J95
2020-05-06 21:47:11 C 09 35 54.58 +09 14 41.6 V J95
2020-05-06 21:49:52 C 09 36 01.91 +09 13 57.2 V Z80
2020-05-07 20:53:18 C 10 42 22.12 +02 38 18.7 V 204
2020-05-07 20:55:06 C 10 42 27.11 +02 37 46.6 V 204
2020-05-07 20:56:54 C 10 42 32.10 +02 37 14.9 V 204
2020-05-07 20:58:42 C 10 42 37.09 +02 36 43.1 V 204
2020-05-07 21:00:40 C 10 42 42.51 +02 36 08.5 V 204
2020-05-07 21:24:05 C 10 43 50.67 +02 28 49.4 V Z80
2020-05-07 21:27:26 C 10 43 59.90 +02 27 50.9 V Z80
2020-05-07 21:30:46 C 10 44 09.16 +02 26 52.5 V Z80
2020-05-07 21:34:06 C 10 44 18.37 +02 25 53.0 V Z80
2020-05-08 21:44:09 C 11 48 03.52 -04 11 33.4 V Z80
2020-05-08 21:46:39 C 11 48 09.35 -04 12 10.0 V Z80
2020-05-08 21:49:10 C 11 48 15.20 -04 12 46.8 V Z80
2020-05-08 21:51:40 C 11 48 21.04 -04 13 23.8 V Z80
2020-05-09 17:33:29 C 12 31 03.18 -08 26 34.7 V C40
2020-05-09 17:35:32 C 12 31 07.01 -08 26 57.7 V C40
2020-05-09 17:37:28 C 12 31 10.61 -08 27 19.0 V C40
2020-05-09 17:37:47 C 12 31 11.21 -08 27 22.6 V C40
2020-05-09 17:39:04 C 12 31 13.60 -08 27 36.8 V C40
2020-05-09 17:39:43 C 12 31 14.81 -08 27 43.9 V C40
2020-05-09 17:40:02 C 12 31 15.41 -08 27 47.4 V C40
2020-05-09 17:41:39 C 12 31 18.42 -08 28 05.3 V C40
2020-05-09 17:41:58 C 12 31 19.00 -08 28 08.9 V C40
2020-05-09 17:42:37 C 12 31 20.21 -08 28 16.2 V C40
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)