363505 (2003 UC20)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3369206020 ± 2.00e+00
Semi-major axis (a)0.7812413289 AU ± 3.00e+00
Inclination (i)3.77598941° ± 4.00e+00
Long. of Asc. Node (Ω)187.92061629° ± 5.00e+00
Arg. of Perihelion (ω)60.17154525° ± 6.00e+00
Mean Anomaly (M)117.79838381° ± 4.25e-06
Mean Motion (n)1.4273630860°/day ± 8.22e+00
Perihelion dist (q)0.51802503 AU ± 2.53e+00
Aphelion dist (Q)1.04445763 AU ± 4.30e+00
Orbital Period0.69052247 yr ± 3.98e+00
NGA Modelr2
A2-3.65170224e-07 AU/d²
Physical Parameters
H (abs. magnitude)18.48
G (slope)0.15
Alternative Designations

1954 XA

Orbit Solution
SourceIAA
Solution Date2026-04-29
RMS Residual0.018″
Uncertainty0
Orbit TypeAten
MOID0.035536 AU
Observations Used801
Gaia Obs Used106
Oppositions28
Arc Total1954-2017
First Observation Used1954-12-05
Last Observation Used2025-12-19
Observations (1097)
Date Type RA Dec Mag Band Observatory
2014-11-26 01:59:00 C 22 57 31.74 -20 31 29.7 R G45
2014-11-26 02:13:04 C 22 57 34.56 -20 31 09.6 q 703
2014-11-26 02:23:55 C 22 57 36.57 -20 30 54.6 q 703
2014-11-26 02:31:26 S 22 57 38.388 -20 30 10.84 L C51
2014-11-26 02:34:47 C 22 57 38.62 -20 30 39.7 q 703
2014-11-26 02:45:38 C 22 57 40.58 -20 30 24.9 q 703
2014-11-26 05:40:51 S 22 58 15.617 -20 25 52.86 L C51
2014-11-26 11:59:19 S 22 59 29.357 -20 17 18.13 L C51
2014-11-26 18:17:59 S 23 00 42.338 -20 08 47.04 L C51
2014-11-26 21:27:24 S 23 01 18.552 -20 04 32.59 L C51
2014-11-27 00:36:38 S 23 01 54.516 -20 00 18.72 L C51
2014-11-27 06:55:17 S 23 03 05.911 -19 51 53.39 L C51
2014-11-27 10:04:31 S 23 03 41.297 -19 47 41.53 L C51
2014-11-27 10:04:42 S 23 03 41.345 -19 47 41.96 L C51
2014-11-27 16:23:21 S 23 04 51.590 -19 39 20.88 L C51
2014-11-27 19:32:36 S 23 05 26.414 -19 35 11.51 L C51
2014-11-27 22:42:01 S 23 06 01.099 -19 31 02.96 L C51
2014-12-15 00:50:36 S 00 03 05.50 -11 59 30.3 L C51
2014-12-15 03:59:50 S 00 03 26.27 -11 56 33.7 L C51
2014-12-15 04:00:02 S 00 03 26.29 -11 56 34.0 L C51
2014-12-15 07:09:15 S 00 03 47.01 -11 53 37.9 L C51
2014-12-15 10:18:30 S 00 04 07.66 -11 50 42.0 L C51
2014-12-15 13:27:44 S 00 04 28.26 -11 47 46.5 L C51
2014-12-15 16:36:58 S 00 04 48.81 -11 44 51.4 L C51
2014-12-15 16:37:09 S 00 04 48.84 -11 44 51.6 L C51
2014-12-15 19:46:23 S 00 05 09.341 -11 41 56.80 L C51
2014-12-15 22:55:37 S 00 05 29.78 -11 39 02.3 L C51
2014-12-16 02:04:51 S 00 05 50.18 -11 36 08.2 L C51
2014-12-16 05:14:16 S 00 06 10.55 -11 33 14.6 L C51
2014-12-16 06:48:54 S 00 06 20.71 -11 31 48.1 L C51
2014-12-16 08:23:30 S 00 06 30.84 -11 30 21.3 L C51
2014-12-16 09:58:07 S 00 06 40.96 -11 28 54.7 L C51
2014-12-16 11:32:44 S 00 06 51.08 -11 27 28.3 L C51
2014-12-16 13:07:21 S 00 07 01.18 -11 26 01.9 L C51
2014-12-16 14:41:59 S 00 07 11.27 -11 24 35.6 L C51
2014-12-16 16:16:35 S 00 07 21.36 -11 23 09.4 L C51
2014-12-16 17:51:24 S 00 07 31.44 -11 21 43.6 L C51
2014-12-16 19:26:00 S 00 07 41.49 -11 20 17.5 L C51
2014-12-16 21:00:38 S 00 07 51.535 -11 18 51.70 L C51
2014-12-16 22:35:15 S 00 08 01.55 -11 17 25.7 L C51
2014-12-17 00:09:51 S 00 08 11.58 -11 15 59.9 L C51
2014-12-17 01:44:29 S 00 08 21.57 -11 14 34.3 L C51
2014-12-17 04:53:43 S 00 08 41.55 -11 11 43.1 L C51
2014-12-17 08:03:08 S 00 09 01.50 -11 08 52.5 L C51
2014-12-17 11:12:22 S 00 09 21.39 -11 06 02.0 L C51
2014-12-17 14:21:36 S 00 09 41.22 -11 03 11.9 L C51
2014-12-17 17:30:50 S 00 10 01.00 -11 00 22.2 L C51
2014-12-17 20:40:15 S 00 10 20.758 -10 57 32.83 L C51
2014-12-17 23:49:29 S 00 10 40.450 -10 54 43.74 L C51
2014-12-18 02:58:43 S 00 11 00.10 -10 51 54.9 L C51
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2003-10-28 11:12:00 65823.59 3 Hz 2380 -1 -1
2003-10-28 11:22:00 65526.86 1 Hz 2380 -1 -1
2003-10-30 09:41:00 69173.033 0.5 Hz 2380 -1 -1
2003-10-30 10:32:00 141742138.9 8 us 2380 -1 -1
2003-10-30 10:32:00 67625.2096 0.5 Hz 2380 -1 -1
2023-10-20 15:00:00 70129418.56 1.5 us 8560 -14 -14
2023-10-25 15:50:00 50837172.074 0.5 us 8560 -14 -14
2023-11-02 17:07:00 1169.735 0.46 Hz 7159.45 -47 -43
Station codes
-47 DSS-47 ATCA (W196) -43 DSS-43 Tidbinbilla (70-m) -14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)