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
2015-01-18 03:17:16 C 02 21 23.54 +15 29 20.3 R G45
2015-01-18 03:25:25 C 02 21 22.91 +15 29 16.5 R G45
2015-01-18 03:31:29 C 02 21 22.46 +15 29 14.8 R G45
2015-01-18 03:37:35 C 02 21 21.98 +15 29 12.7 R G45
2015-01-18 03:51:48 C 02 21 20.82 +15 29 08.6 R G45
2015-01-18 05:21:14 C 02 21 13.80 +15 28 35.4 R G45
2015-01-18 05:27:17 C 02 21 13.31 +15 28 33.1 R G45
2015-01-18 19:50:23 C 02 20 11.38 +15 23 39.8 o B67
2015-01-18 20:06:42 C 02 20 10.09 +15 23 34.5 o B67
2015-01-18 20:23:01 C 02 20 08.84 +15 23 28.4 o B67
2015-01-19 02:27:42 C 02 19 43.19 +15 21 34.6 q G96
2015-01-19 02:36:44 C 02 19 42.47 +15 21 31.5 q G96
2015-01-19 02:46:26 C 02 19 41.69 +15 21 28.3 q G96
2015-01-19 02:56:02 C 02 19 40.95 +15 21 25.1 q G96
2015-05-05 08:20:31 C 20 17 35.63 -20 20 58.9 u 807
2015-05-05 08:28:45 C 20 17 35.30 -20 21 00.4 u 807
2015-05-13 06:50:39 C 20 07 36.86 -20 59 04.0 u 807
2015-05-13 06:57:14 C 20 07 36.43 -20 59 04.8 u 807
2015-05-13 07:04:03 C 20 07 35.95 -20 59 06.8 u 807
2015-05-18 07:22:05 C 19 59 29.76 -21 26 35.5 u 807
2015-05-18 07:28:37 C 19 59 29.26 -21 26 37.2 u 807
2015-05-18 07:35:05 C 19 59 28.75 -21 26 38.5 u 807
2015-05-19 12:38:45 C 19 57 18.415 -21 33 53.37 L F51
2015-05-19 12:55:07 C 19 57 17.068 -21 33 57.67 L F51
2015-05-19 13:11:26 C 19 57 15.704 -21 34 01.61 L F51
2015-05-19 13:27:47 C 19 57 14.386 -21 34 05.77 L F51
2015-06-13 11:37:34 C 18 58 57.589 -23 44 32.33 L F51
2015-06-13 11:54:36 C 18 58 55.679 -23 44 34.74 L F51
2015-06-13 12:11:24 C 18 58 53.833 -23 44 37.22 L F51
2015-06-13 12:28:15 C 18 58 51.957 -23 44 39.89 L F51
2019-11-19 07:20:21 C 03 09 31.37 +18 04 48.5 V G96
2019-11-19 07:28:25 C 03 09 30.67 +18 04 45.9 V G96
2019-11-19 07:36:30 C 03 09 29.95 +18 04 43.5 V G96
2019-11-19 07:44:34 C 03 09 29.30 +18 04 40.7 V G96
2019-11-28 09:46:25 C 02 50 33.278 +16 49 01.29 U F51
2019-11-28 10:05:59 C 02 50 31.496 +16 48 54.02 U F51
2019-11-28 10:25:38 C 02 50 29.718 +16 48 46.53 U F51
2019-11-28 10:45:21 C 02 50 27.926 +16 48 39.31 U F51
2020-05-04 19:13:08 C 07 36 32.47 +18 24 50.9 V 160
2020-05-04 19:14:17 C 07 36 34.59 +18 24 43.0 V 160
2020-05-04 19:15:26 C 07 36 36.66 +18 24 34.5 V 160
2020-05-04 19:16:36 C 07 36 38.70 +18 24 27.6 V 160
2020-05-05 20:21:52 C 08 28 58.77 +14 56 10.2 V K85
2020-05-05 20:35:07 C 08 29 29.73 +14 53 45.6 V K85
2020-05-05 21:46:44 C 08 32 20.00 +14 40 33.9 V Z80
2020-05-05 21:51:44 C 08 32 31.96 +14 39 37.6 V Z80
2020-05-05 21:56:44 C 08 32 43.85 +14 38 42.3 V Z80
2020-05-05 22:01:44 C 08 32 55.80 +14 37 44.9 V Z80
2020-05-06 06:02:41 C 08 53 03.61 +13 05 17.4 V T05
2020-05-06 06:11:56 C 08 53 26.76 +13 03 17.3 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)