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
2005-10-25 11:43:48 C 09 58 26.62 +14 01 23.5 c 691
2005-10-25 12:01:45 C 09 58 28.85 +14 03 00.8 c 691
2005-10-25 12:19:41 C 09 58 31.07 +14 04 37.5 c 691
2005-10-26 08:51:40 C 10 01 12.07 +15 55 19.9 r 734
2005-10-26 08:56:09 C 10 01 12.61 +15 55 44.2 r 734
2005-10-26 09:00:38 C 10 01 13.16 +15 56 08.3 r 734
2005-10-26 10:49:01 C 10 01 27.62 +16 05 57.4 c 691
2005-10-26 11:23:05 C 10 01 32.06 +16 09 01.4 c 691
2005-10-26 11:45:15 C 10 01 34.91 +16 11 00.4 c 691
2005-10-29 11:01:40 C 10 11 38.32 +22 33 06.9 r 703
2005-10-29 11:07:14 C 10 11 39.12 +22 33 37.3 r 703
2005-10-29 11:12:46 C 10 11 39.87 +22 34 06.6 r 703
2005-10-29 11:18:18 C 10 11 40.70 +22 34 35.5 r 703
2005-11-02 11:26:46 C 10 26 59.90 +30 51 33.3 o 754
2005-11-02 11:29:38 C 10 27 00.32 +30 51 47.1 o 754
2005-11-02 11:32:54 C 10 27 01.00 +30 52 05.6 o 754
2005-11-02 11:37:56 C 10 27 01.63 +30 52 27.4 o 754
2005-11-06 10:49:18 C 10 44 12.66 +38 27 14.1 r 448
2005-11-06 10:56:47 C 10 44 14.04 +38 27 48.1 r 448
2005-11-06 11:04:04 C 10 44 15.42 +38 28 21.9 r 448
2005-11-12 10:53:41 C 11 13 57.41 +48 21 34.9 18.1 c 704
2005-11-12 11:12:21 C 11 14 01.48 +48 22 44.2 18.2 c 704
2005-11-12 11:30:53 C 11 14 05.53 +48 23 54.5 18.3 c 704
2005-11-12 11:49:50 C 11 14 09.61 +48 25 05.3 18.2 c 704
2005-11-12 12:08:31 C 11 14 13.63 +48 26 15.1 18.2 c 704
2005-11-19 02:34:15 C 11 52 04.98 +56 59 34.7 o J95
2005-11-19 02:40:45 C 11 52 06.60 +56 59 53.0 o J95
2005-11-19 02:47:02 C 11 52 08.20 +57 00 10.9 o J95
2006-03-01 21:27:37 C 04 27 03.78 +84 14 21.3 o J95
2006-03-01 21:43:24 C 04 27 11.08 +84 14 11.5 o J95
2006-03-01 22:02:14 C 04 27 19.86 +84 14 00.3 o J95
2007-03-11 11:50:33 C 15 46 11.07 +09 52 55.2 o 291
2007-03-11 11:58:37 C 15 46 10.96 +09 52 56.4 o 291
2007-03-11 12:06:40 C 15 46 10.89 +09 52 58.0 o 291
2007-04-21 06:14:06 C 15 03 52.37 +12 25 56.6 21.8 o H55
2007-04-21 06:22:03 C 15 03 51.75 +12 25 56.6 21.5 o H55
2007-04-21 06:29:36 C 15 03 51.18 +12 25 56.4 21.7 o H55
2009-03-17 07:37:38 C 14 59 12.01 +29 45 19.7 o H55
2009-03-17 08:01:03 C 14 59 11.06 +29 45 29.3 o H55
2009-03-17 08:23:09 C 14 59 10.14 +29 45 38.2 o H55
2012-05-11 10:14:59 C 00 11 45.36 -44 47 51.1 o 807
2012-05-11 10:20:34 C 00 11 47.29 -44 47 46.4 o 807
2012-05-11 10:26:40 C 00 11 49.43 -44 47 41.3 o 807
2012-05-23 10:05:31 C 01 43 21.54 -38 30 16.5 o 807
2012-05-23 10:10:24 C 01 43 22.91 -38 30 08.5 o 807
2012-05-23 10:15:18 C 01 43 24.26 -38 30 00.0 o 807
2012-05-23 10:20:12 C 01 43 25.65 -38 29 52.1 o 807
2012-05-28 09:51:42 C 02 14 54.24 -34 54 57.1 o 807
2012-05-28 09:58:19 C 02 14 55.84 -34 54 45.0 o 807
2014-04-24 08:12:51 C 16 05 29.82 -10 38 04.3 o 691
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)