393908 (2005 UH3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5458491386 ± 2.30e-08
Semi-major axis (a)1.7266366434 AU ± 1.97e-09
Inclination (i)44.77547314° ± 6.22e-06
Long. of Asc. Node (Ω)53.31368126° ± 1.73e-06
Arg. of Perihelion (ω)309.17907268° ± 3.75e-06
Mean Anomaly (M)319.46217970° ± 3.50e-06
Mean Motion (n)0.4344210350°/day ± 7.43e-10
Perihelion dist (q)0.78415352 AU ± 3.97e-08
Aphelion dist (Q)2.66911977 AU ± 3.98e-08
Orbital Period2.26882725 yr ± 3.88e-09
Physical Parameters
H (abs. magnitude)17.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.241″
Uncertainty0
Orbit TypeApollo
MOID0.080930 AU
Observations Used239
Radar Obs Used5
Oppositions5
Arc Total2005-2014
First Observation Used2005-10-25
Last Observation Used2025-05-30
Observations (282)
Date Type RA Dec Mag Band Observatory
2021-09-09 12:12:49 C 07 46 16.94 +20 13 35.9 U I41
2021-09-09 12:16:29 C 07 46 17.44 +20 13 42.3 U I41
2021-10-11 11:36:28 C 09 44 15.31 +38 04 42.4 V 703
2021-10-11 11:44:19 C 09 44 16.65 +38 04 49.5 V 703
2021-10-11 12:00:01 C 09 44 19.23 +38 05 06.7 V 703
2021-11-05 12:12:45 C 11 23 18.73 +46 30 34.6 V 703
2021-11-05 12:20:00 C 11 23 19.87 +46 30 39.3 V 703
2021-11-05 12:27:16 C 11 23 20.94 +46 30 45.0 V 703
2021-11-05 12:34:32 C 11 23 22.25 +46 30 50.0 V 703
2021-11-12 12:02:03 C 11 49 41.93 +48 20 27.7 V 703
2021-11-12 12:17:42 C 11 49 44.26 +48 20 37.5 V 703
2021-11-12 12:25:31 C 11 49 45.45 +48 20 42.3 V 703
2022-02-14 13:55:14 C 14 27 22.012 +74 32 27.35 U F52
2022-02-14 14:09:04 C 14 27 20.265 +74 32 36.72 U F52
2022-02-14 14:22:54 C 14 27 18.672 +74 32 45.98 U F52
2022-02-21 15:05:10 C 14 02 42.079 +76 12 32.12 U F52
2022-02-21 15:16:09 C 14 02 40.109 +76 12 37.63 U F52
2022-02-21 15:27:05 C 14 02 38.036 +76 12 43.14 U F52
2022-02-21 15:38:05 C 14 02 36.063 +76 12 48.70 U F52
2023-03-18 13:51:51 C 16 10 07.119 +00 27 46.74 U F52
2023-03-18 14:13:20 C 16 10 06.949 +00 27 46.40 U F52
2023-03-18 14:34:40 C 16 10 06.768 +00 27 46.04 U F52
2023-03-18 14:55:57 C 16 10 06.606 +00 27 45.72 U F52
2023-04-18 09:30:02 C 15 44 30.124 -00 06 20.05 V G96
2023-04-18 09:37:29 C 15 44 29.609 -00 06 20.84 V G96
2023-04-18 09:44:57 C 15 44 29.116 -00 06 21.82 V G96
2023-04-18 09:52:26 C 15 44 28.583 -00 06 22.50 V G96
2023-04-21 18:21:13 C 15 38 48.30 -00 16 55.5 V D29
2023-04-21 18:41:35 C 15 38 46.79 -00 16 58.2 V D29
2023-04-29 07:52:48 C 15 23 54.575 -00 49 43.79 V G96
2023-04-29 08:00:11 C 15 23 53.923 -00 49 45.44 V G96
2023-04-29 08:07:35 C 15 23 53.243 -00 49 46.96 V G96
2023-04-29 08:15:00 C 15 23 52.562 -00 49 48.79 V G96
2023-05-01 16:35:25 C 15 18 42.44 -01 02 52.1 V D29
2023-05-01 16:57:57 C 15 18 40.29 -01 02 57.8 V D29
2023-05-10 08:09:24 C 14 57 54.882 -02 03 47.84 V G96
2023-05-10 08:15:33 C 14 57 54.220 -02 03 50.08 V G96
2023-05-10 08:21:39 C 14 57 53.572 -02 03 52.16 V G96
2023-05-10 08:27:47 C 14 57 52.895 -02 03 54.54 V G96
2023-05-11 06:42:10 C 14 55 31.800 -02 11 39.26 V G96
2023-05-11 06:48:58 C 14 55 31.213 -02 11 41.60 V G96
2023-05-11 06:55:46 C 14 55 30.500 -02 11 44.12 V G96
2023-05-11 07:02:34 C 14 55 29.737 -02 11 46.54 V G96
2023-05-12 17:27:03 C 14 51 49.20 -02 24 13.1 V D29
2023-05-12 17:47:25 C 14 51 46.96 -02 24 21.3 V D29
2023-05-13 08:42:36 C 14 50 11.237 -02 29 54.11 X F52
2023-05-13 09:00:14 C 14 50 09.306 -02 30 00.87 X F52
2023-05-13 09:17:53 C 14 50 07.366 -02 30 07.41 X F52
2023-05-13 09:35:32 C 14 50 05.427 -02 30 14.16 X F52
2023-05-16 20:59:54 C 14 41 03.61 -03 03 22.2 X C95
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-11-27 18:45:00 -284332.0264 0.1 Hz 2380 -1 -1
2014-11-27 19:12:00 145236611.83 4 us 2380 -1 -1
2014-11-27 19:20:00 145294260.3 1 us 2380 -1 -1
2014-11-28 20:13:00 156672491.36 1 us 2380 -1 -1
2014-11-28 20:16:00 -316782.5502 0.025 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)