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
2020-05-29 08:55:00 C 15 36 34.60 -20 57 23.0 V T05
2020-05-29 09:31:46 C 15 36 36.53 -20 57 27.9 V T05
2020-05-29 09:55:50 C 15 36 37.80 -20 57 31.0 V T05
2020-06-01 09:40:57 C 15 40 59.93 -21 05 38.8 V T05
2020-06-01 09:46:15 C 15 41 00.17 -21 05 38.8 V T05
2020-06-01 10:31:56 C 15 41 02.06 -21 05 43.5 V T05
2020-06-01 10:39:20 C 15 41 02.39 -21 05 44.1 V T05
2020-06-10 13:42:44 C 15 50 52.86 -21 22 48.6 q D29
2020-06-10 14:03:06 C 15 50 53.48 -21 22 50.1 q D29
2020-06-10 14:23:28 C 15 50 54.07 -21 22 51.3 q D29
2020-06-11 05:41:47 C 15 51 28.90 -21 23 50.1 V G96
2020-06-11 05:48:40 C 15 51 29.11 -21 23 50.6 V G96
2020-06-11 05:55:32 C 15 51 29.31 -21 23 51.0 V G96
2020-06-11 06:02:23 C 15 51 29.51 -21 23 51.5 V G96
2020-06-11 10:02:39 C 15 51 38.01 -21 24 01.7 V T08
2020-06-11 10:07:17 C 15 51 38.11 -21 24 01.7 V T08
2020-06-11 10:15:56 C 15 51 38.38 -21 24 02.5 V T08
2020-06-11 10:30:38 C 15 51 38.81 -21 24 02.7 V T08
2020-06-13 07:03:06 C 15 53 19.340 -21 26 49.56 U F51
2020-06-13 07:20:28 C 15 53 19.841 -21 26 51.00 U F51
2020-06-13 07:37:49 C 15 53 20.328 -21 26 52.34 U F51
2020-06-13 07:55:10 C 15 53 20.825 -21 26 53.61 U F51
2020-06-14 08:49:43 C 15 54 14.462 -21 28 25.40 U F51
2020-06-14 08:51:36 C 15 54 14.514 -21 28 25.50 U F51
2020-06-14 09:05:36 C 15 54 14.901 -21 28 26.34 U F51
2020-06-17 07:54:37 C 15 56 46.726 -21 32 44.58 U F52
2020-06-17 08:11:41 C 15 56 47.203 -21 32 45.72 U F52
2020-06-17 08:28:48 C 15 56 47.679 -21 32 46.86 U F52
2020-06-17 08:45:55 C 15 56 48.158 -21 32 47.89 U F52
2020-06-17 08:54:46 C 15 56 48.39 -21 32 48.4 V T05
2020-06-17 09:00:02 C 15 56 48.48 -21 32 49.0 V T05
2020-06-17 09:09:15 C 15 56 48.83 -21 32 49.4 V T05
2020-06-17 09:58:31 C 15 56 50.17 -21 32 50.7 V T05
2020-06-24 08:03:39 C 16 02 45.726 -21 43 19.00 U F51
2020-06-24 08:20:04 C 16 02 46.224 -21 43 20.14 U F51
2020-06-24 08:36:29 C 16 02 46.717 -21 43 21.13 U F51
2020-06-24 08:52:57 C 16 02 47.208 -21 43 22.14 U F51
2020-07-12 07:16:05 C 16 19 57.391 -22 15 15.02 U F52
2020-07-12 07:28:24 C 16 19 57.872 -22 15 15.85 U F52
2020-07-12 07:40:42 C 16 19 58.373 -22 15 16.76 U F52
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)