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
2010-02-14 05:02:47 C 13 42 37.05 +50 03 24.1 o H26
2010-02-14 05:03:08 C 13 42 37.22 +50 03 28.6 o H26
2010-02-14 05:03:31 C 13 42 37.38 +50 03 33.1 o H26
2010-02-14 05:03:52 C 13 42 37.56 +50 03 37.2 o H26
2010-02-14 05:04:14 C 13 42 37.76 +50 03 41.4 o H26
2010-02-14 05:26:39 C 13 42 48.14 +50 08 03.2 o H26
2010-02-14 05:27:02 C 13 42 48.33 +50 08 07.6 o H26
2010-02-14 05:27:23 C 13 42 48.48 +50 08 11.8 o H26
2010-02-14 05:28:07 C 13 42 48.84 +50 08 20.2 o H26
2010-02-14 05:28:30 C 13 42 48.99 +50 08 24.6 o H26
2010-02-14 05:28:51 C 13 42 49.16 +50 08 28.7 o H26
2010-02-14 05:29:13 C 13 42 49.33 +50 08 33.3 o H26
2010-02-14 05:31:04 C 13 42 50.20 +50 08 54.6 o H26
2010-02-14 05:31:25 C 13 42 50.35 +50 08 58.8 o H26
2010-02-14 05:31:48 C 13 42 50.52 +50 09 03.0 o H26
2010-02-14 05:32:09 C 13 42 50.69 +50 09 07.3 o H26
2010-02-14 05:32:32 C 13 42 50.86 +50 09 11.5 o H26
2010-02-14 05:32:54 C 13 42 51.04 +50 09 15.8 o H26
2010-02-14 05:33:19 C 13 42 51.21 +50 09 20.6 o H26
2010-02-15 07:31:27 C 13 54 22.74 +54 20 16.5 u H45
2010-02-15 07:33:02 C 13 54 23.35 +54 20 29.6 u H45
2010-02-15 07:33:50 C 13 54 23.68 +54 20 36.4 u H45
2010-02-15 07:35:25 C 13 54 24.29 +54 20 49.8 u H45
2010-02-15 07:37:00 C 13 54 24.89 +54 21 02.9 u H45
2010-02-15 07:38:15 C 13 54 25.36 +54 21 13.5 u H45
2010-02-16 11:35:25 C 14 05 03.19 +57 35 50.9 u H45
2010-02-16 11:36:48 C 14 05 03.64 +57 35 59.0 u H45
2010-02-16 11:37:58 C 14 05 04.03 +57 36 06.0 u H45
2010-02-16 11:39:44 C 14 05 04.59 +57 36 16.2 u H45
2010-02-16 11:40:57 C 14 05 04.99 +57 36 23.3 u H45
2010-02-16 11:42:06 C 14 05 05.34 +57 36 29.9 u H45
2010-02-18 18:20:49 C 14 22 07.87 +61 45 07.7 u 379
2010-02-18 18:30:10 C 14 22 10.10 +61 45 40.4 u 379
2010-02-18 18:32:50 C 14 22 10.72 +61 45 50.0 u 379
2010-02-18 18:35:30 C 14 22 11.32 +61 45 59.6 u 379
2010-02-18 18:42:08 C 14 22 12.83 +61 46 22.4 u 379
2010-02-18 18:44:48 C 14 22 13.42 +61 46 31.8 u 379
2010-02-18 18:54:10 C 14 22 15.62 +61 47 04.5 u 379
2010-02-18 19:08:49 C 14 22 19.04 +61 47 55.6 u 379
2010-02-19 08:47:40 C 14 25 53.19 +62 32 17.7 u H45
2010-02-19 08:50:12 C 14 25 53.74 +62 32 25.9 u H45
2010-02-19 08:51:33 C 14 25 54.03 +62 32 30.1 u H45
2010-02-19 08:54:10 C 14 25 54.61 +62 32 38.4 u H45
2010-02-19 08:57:01 C 14 25 55.24 +62 32 47.6 u H45
2010-02-19 08:59:08 C 14 25 55.71 +62 32 54.2 u H45
2010-02-19 09:00:30 C 14 25 55.99 +62 32 58.3 u H45
2010-02-19 18:08:48 C 14 28 07.92 +63 00 01.0 u 379
2010-02-19 18:11:28 C 14 28 08.41 +63 00 08.6 u 379
2010-02-19 18:30:10 C 14 28 12.22 +63 01 03.2 u 379
2010-02-19 18:32:49 C 14 28 12.79 +63 01 10.6 u 379
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)