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
2023-05-16 21:35:31 C 14 40 59.65 -03 03 37.2 X C95
2023-05-23 07:27:37 C 14 24 20.527 -04 12 34.88 V G96
2023-05-23 07:35:09 C 14 24 19.714 -04 12 38.66 V G96
2023-05-23 07:42:44 C 14 24 18.889 -04 12 42.34 V G96
2023-05-23 07:50:18 C 14 24 18.065 -04 12 45.97 V G96
2023-05-24 07:25:55 C 14 21 47.914 -04 24 09.14 X F52
2023-05-24 07:42:29 C 14 21 46.125 -04 24 17.35 X F52
2023-05-24 07:59:08 C 14 21 44.324 -04 24 25.34 X F52
2023-05-24 08:15:46 C 14 21 42.524 -04 24 33.60 X F52
2023-05-25 07:15:45 C 14 19 16.493 -04 35 53.09 V 703
2023-05-25 07:23:27 C 14 19 15.683 -04 35 57.62 V 703
2023-05-25 07:38:51 C 14 19 14.243 -04 36 04.79 V 703
2023-05-27 12:48:17 C 14 13 43.04 -05 02 58.8 V D29
2023-05-27 13:08:39 C 14 13 40.90 -05 03 08.4 V D29
2023-05-27 13:29:00 C 14 13 38.76 -05 03 20.1 V D29
2023-06-10 06:19:43 C 13 43 23.822 -08 06 21.89 V G96
2023-06-10 06:27:09 C 13 43 23.196 -08 06 26.53 V G96
2023-06-10 06:34:35 C 13 43 22.609 -08 06 30.56 V G96
2023-06-10 06:42:00 C 13 43 22.004 -08 06 34.88 V G96
2023-12-06 19:19:03 C 21 12 26.333 -34 38 04.67 V M22
2023-12-06 19:23:42 C 21 12 27.538 -34 37 43.07 V M22
2023-12-06 19:32:34 C 21 12 29.796 -34 37 02.42 V M22
2023-12-06 20:01:42 C 21 12 37.274 -34 34 49.84 V M22
2023-12-29 05:29:24 C 22 52 00.218 +09 39 28.15 V T08
2023-12-29 05:33:24 C 22 52 00.794 +09 39 45.79 V T08
2023-12-29 05:58:12 C 22 52 04.020 +09 41 29.72 V T08
2023-12-29 06:06:31 C 22 52 05.177 +09 42 04.90 V T08
2024-01-01 02:13:06 C 23 01 06.150 +14 17 23.10 V 703
2024-01-01 02:16:21 C 23 01 06.719 +14 17 34.44 V 703
2024-01-01 02:19:37 C 23 01 07.144 +14 17 46.03 V 703
2024-01-01 02:22:52 C 23 01 07.608 +14 17 58.85 V 703
2024-01-01 05:07:54 C 23 01 28.886 +14 28 38.86 V T08
2024-01-01 05:12:33 C 23 01 29.477 +14 28 56.96 V T08
2024-01-01 05:20:01 C 23 01 30.386 +14 29 25.51 V T08
2024-01-01 05:34:10 C 23 01 32.206 +14 30 19.87 V T08
2024-01-04 05:33:15 C 23 10 38.170 +18 54 22.57 V T05
2024-01-04 05:37:49 C 23 10 38.724 +18 54 37.98 V T05
2024-01-04 05:45:37 C 23 10 39.624 +18 55 05.45 V T05
2024-01-04 06:03:52 C 23 10 41.897 +18 56 09.17 V T05
2024-01-05 06:30:09 C 23 13 42.463 +20 19 55.96 V T05
2024-01-05 06:34:43 C 23 13 43.015 +20 20 11.44 V T05
2024-01-05 06:45:54 C 23 13 44.390 +20 20 48.41 V T05
2024-01-05 07:04:32 C 23 13 46.656 +20 21 51.55 V T05
2024-01-07 05:41:14 C 23 19 26.122 +22 53 50.60 V T08
2024-01-07 05:48:10 C 23 19 26.974 +22 54 12.31 V T08
2024-01-07 05:57:29 C 23 19 28.049 +22 54 41.65 V T08
2024-01-07 06:12:48 C 23 19 29.827 +22 55 29.46 V T08
2024-01-11 05:29:24 C 23 30 47.136 +27 36 36.11 V T08
2024-01-11 05:32:04 C 23 30 47.506 +27 36 43.27 V T08
2024-01-11 05:37:23 C 23 30 48.113 +27 36 57.64 V T08
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)