484976 (2009 UN3)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5756108250 ± 1.16e-08
Semi-major axis (a)2.3278381630 AU ± 1.07e-08
Inclination (i)37.43433742° ± 5.37e-06
Long. of Asc. Node (Ω)141.94641784° ± 5.51e-07
Arg. of Perihelion (ω)338.77682710° ± 1.00e-05
Mean Anomaly (M)165.91211717° ± 1.18e-05
Mean Motion (n)0.2775128518°/day ± 1.91e-09
Perihelion dist (q)0.98790932 AU ± 2.73e-08
Aphelion dist (Q)3.66776701 AU ± 3.18e-08
Orbital Period3.55164194 yr ± 2.44e-08
Physical Parameters
H (abs. magnitude)18.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.391″
Uncertainty0
Orbit TypeApollo
MOID0.025447 AU
Observations Used356
Radar Obs Used7
Oppositions5
Arc Total2003-2017
First Observation Used2003-03-07
Last Observation Used2017-04-21
Observations (365)
Date Type RA Dec Mag Band Observatory
2010-01-31 12:25:49 S 08 48 02.66 -72 33 11.1 L C51
2010-01-31 12:26:00 S 08 48 03.05 -72 33 10.8 L C51
2010-01-31 14:01:09 S 08 49 28.97 -72 29 06.3 L C51
2010-01-31 16:21:01 C 08 51 31.13 -72 23 51.6 r D96
2010-01-31 16:35:57 C 08 51 43.92 -72 23 10.3 r D96
2010-02-02 02:54:39 C 09 25 16.45 -70 22 45.4 r I19
2010-02-02 02:58:48 C 09 25 20.45 -70 22 27.5 r I19
2010-02-02 03:00:44 C 09 25 22.32 -70 22 19.1 r I19
2010-02-05 03:57:44 C 10 44 51.81 -60 16 37.9 r I32
2010-02-05 03:59:36 C 10 44 53.72 -60 16 12.0 r I32
2010-02-05 04:01:27 C 10 44 55.71 -60 15 46.3 r I32
2010-02-05 17:30:59 C 10 59 42.35 -56 43 28.8 r D96
2010-02-05 17:34:29 C 10 59 45.98 -56 42 27.3 r D96
2010-02-05 17:37:55 C 10 59 49.54 -56 41 26.4 r D96
2010-02-05 17:54:29 C 11 00 06.75 -56 36 32.2 r D96
2010-02-05 17:57:50 C 11 00 10.24 -56 35 32.5 r D96
2010-02-06 11:56:54 C 11 20 01.05 -50 23 30.0 r D96
2010-02-06 12:00:03 C 11 20 04.36 -50 22 16.8 r D96
2010-02-06 12:03:24 C 11 20 07.91 -50 20 57.7 r D96
2010-02-06 13:37:02 C 11 21 44.80 -49 43 50.4 r D96
2010-02-06 13:45:52 C 11 21 53.90 -49 40 16.4 r D96
2010-02-08 17:01:53 C 12 12 38.66 -18 35 36.7 r D96
2010-02-08 17:03:14 C 12 12 39.83 -18 34 32.3 r D96
2010-02-08 17:04:40 C 12 12 41.04 -18 33 24.7 r D96
2010-02-08 17:06:03 C 12 12 42.21 -18 32 18.3 r D96
2010-02-08 17:15:37 C 12 12 50.35 -18 24 42.8 r D96
2010-02-08 17:18:20 C 12 12 52.64 -18 22 33.7 r D96
2010-02-08 17:19:46 C 12 12 53.88 -18 21 25.3 r D96
2010-02-08 17:29:31 C 12 13 02.16 -18 13 40.8 r D96
2010-02-08 17:30:53 C 12 13 03.34 -18 12 35.2 r D96
2010-02-09 10:43:33 C 12 28 08.24 -04 12 36.4 o 691
2010-02-09 11:08:54 C 12 28 28.24 -03 51 44.9 o 691
2010-02-09 11:34:16 C 12 28 48.13 -03 30 55.7 o 691
2010-02-09 12:52:50 C 12 30 09.40 -02 22 07.5 E20
2010-02-09 12:54:34 C 12 30 10.81 -02 20 43.6 r E20
2010-02-09 12:56:18 C 12 30 12.19 -02 19 19.1 r E20
2010-02-09 12:57:27 C 12 30 13.13 -02 18 22.5 r E20
2010-02-09 12:58:32 C 12 30 13.98 -02 17 28.0 r E20
2010-02-09 17:20:34 C 12 33 41.54 +01 15 05.4 r D96
2010-02-09 17:23:56 C 12 33 44.13 +01 17 48.0 r D96
2010-02-09 17:25:34 C 12 33 45.35 +01 19 06.2 r D96
2010-02-09 17:27:40 C 12 33 46.98 +01 20 48.5 r D96
2010-02-09 17:29:34 C 12 33 48.42 +01 22 19.5 r D96
2010-02-09 17:31:10 C 12 33 49.64 +01 23 36.4 r D96
2010-02-10 00:05:12 C 12 39 14.55 +06 28 51.2 u J95
2010-02-10 00:08:31 C 12 39 17.10 +06 31 24.5 u J95
2010-02-10 00:10:30 C 12 39 18.64 +06 32 56.9 u J95
2010-02-10 00:28:04 C 12 39 32.15 +06 46 28.3 w J93
2010-02-10 00:29:17 C 12 39 33.06 +06 47 23.9 w J93
2010-02-10 00:30:29 C 12 39 33.97 +06 48 18.6 w J93
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2010-02-08 11:50:00 335682.757 3 Hz 8560 -14 -14
2010-02-08 12:00:00 331984.755 2 Hz 8560 -14 -14
2010-02-08 12:40:00 37798568.82 10 us 8560 -14 -14
2010-02-08 13:10:00 37733011.96 3 us 8560 -14 -14
2010-02-08 13:30:00 37690579.32 1 us 8560 -14 -14
2010-02-09 12:50:00 -136802.112 2 Hz 8560 -14 -14
2010-02-09 13:20:00 36778858.4 4 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)