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
2003-03-07 11:36:06 C 17 05 14.68 +27 51 37.4 n 645
2003-03-07 11:37:18 C 17 05 14.74 +27 51 38.8 n 645
2003-03-07 11:40:53 C 17 05 14.92 +27 51 42.9 n 645
2009-10-19 14:21:55 C 04 33 10.71 -54 18 52.9 r E12
2009-10-19 14:44:51 C 04 33 11.85 -54 19 23.2 r E12
2009-10-19 16:35:10 C 04 33 17.26 -54 21 47.9 r E12
2009-10-19 17:38:34 C 04 33 20.28 -54 23 10.6 r E12
2009-10-19 17:43:51 C 04 33 20.47 -54 23 17.4 r E12
2009-10-19 18:18:05 C 04 33 22.13 -54 24 01.9 r E12
2009-10-20 12:19:56 C 04 34 19.41 -54 47 21.5 r E12
2009-10-20 12:26:38 C 04 34 19.74 -54 47 30.3 r E12
2009-10-20 16:45:43 C 04 34 32.10 -54 53 08.8 r E12
2009-10-20 16:52:25 C 04 34 32.47 -54 53 17.6 r E12
2009-10-20 18:11:20 C 04 34 36.18 -54 54 58.6 r E12
2009-10-21 16:45:22 C 04 35 45.38 -55 23 55.9 r E12
2009-10-21 16:58:45 C 04 35 45.99 -55 24 13.0 r E12
2009-10-22 14:08:45 C 04 36 50.20 -55 51 04.2 r E12
2009-10-23 16:35:17 C 04 38 07.65 -56 24 18.1 r E12
2009-10-24 17:04:47 C 04 39 18.40 -56 54 40.1 r E12
2009-10-24 17:11:32 C 04 39 18.70 -56 54 48.4 r E12
2009-10-30 14:33:34 C 04 45 41.55 -59 42 22.2 r E12
2009-10-30 17:00:30 C 04 45 47.06 -59 45 09.7 r E12
2009-11-09 14:42:32 C 04 54 37.19 -63 53 48.2 r E12
2009-11-09 14:49:16 C 04 54 37.37 -63 53 54.4 r E12
2009-12-08 17:06:12 C 05 08 39.78 -71 45 46.3 r E12
2009-12-17 10:54:51 C 05 12 43.14 -73 00 19.9 r E12
2009-12-17 10:58:09 C 05 12 43.14 -73 00 21.4 r E12
2009-12-22 14:25:20 C 05 16 09.05 -73 33 09.0 o 474
2009-12-22 14:30:00 C 05 16 09.15 -73 33 10.0 o 474
2009-12-22 14:35:09 C 05 16 09.29 -73 33 11.1 o 474
2010-01-03 12:10:45 C 05 30 47.17 -74 28 00.5 r E12
2010-01-08 03:44:02 C 05 40 20.00 -74 44 30.6 r I20
2010-01-08 03:56:13 C 05 40 20.99 -74 44 32.1 r I20
2010-01-08 04:02:27 C 05 40 21.47 -74 44 32.8 r I20
2010-01-08 11:45:48 C 05 41 10.43 -74 45 37.2 r E18
2010-01-08 12:00:18 C 05 41 11.74 -74 45 40.0 r E18
2010-01-08 12:13:31 C 05 41 12.81 -74 45 41.2 r E18
2010-01-18 12:44:39 C 06 17 54.35 -75 13 17.9 r E12
2010-01-18 12:47:57 C 06 17 55.00 -75 13 18.3 r E12
2010-01-22 13:35:30 C 06 44 29.41 -75 15 42.6 r E12
2010-01-22 13:39:53 C 06 44 30.72 -75 15 42.2 r E12
2010-01-24 11:59:24 C 07 01 48.445 -75 10 55.55 r E12
2010-01-24 12:02:43 C 07 01 49.705 -75 10 55.10 r E12
2010-01-27 11:53:16 C 07 37 10.566 -74 45 11.94 r E12
2010-01-27 11:56:35 C 07 37 12.385 -74 45 10.21 r E12
2010-01-28 12:49:11 C 07 52 32.656 -74 26 46.55 r E12
2010-01-31 04:29:36 S 08 41 00.80 -72 52 13.5 L C51
2010-01-31 06:04:58 S 08 42 24.39 -72 48 35.1 L C51
2010-01-31 07:40:08 S 08 43 48.08 -72 44 52.3 L C51
2010-01-31 09:15:28 S 08 45 12.72 -72 41 03.8 L C51
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)