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
2010-02-26 00:19:16 C 14 52 30.98 +67 21 36.3 16.9 u C20
2010-02-26 09:17:40 C 14 53 26.93 +67 30 48.0 16.8 c 704
2010-02-26 09:34:56 C 14 53 28.21 +67 31 06.2 17.1 c 704
2010-02-26 09:52:04 C 14 53 29.56 +67 31 24.3 17.1 c 704
2010-02-26 10:09:12 C 14 53 30.94 +67 31 41.8 17.4 c 704
2010-02-26 10:26:23 C 14 53 32.15 +67 32 00.2 17.5 c 704
2010-03-01 23:56:49 C 14 59 57.08 +68 39 37.0 u A74
2010-03-02 00:59:20 C 14 59 59.77 +68 40 20.4 u A74
2010-03-02 02:01:52 C 15 00 02.26 +68 41 02.7 u A74
2010-03-02 03:04:23 C 15 00 04.57 +68 41 43.5 u A74
2010-03-02 04:06:55 C 15 00 06.82 +68 42 22.6 u A74
2010-03-02 04:38:09 C 15 00 07.94 +68 42 41.6 u A74
2010-03-04 12:16:29 C 15 02 27.31 +69 12 54.5 o F65
2010-03-04 12:17:51 C 15 02 27.38 +69 12 55.2 o F65
2010-03-04 12:19:24 C 15 02 27.42 +69 12 56.6 o F65
2010-03-09 23:55:01 C 15 03 36.00 +69 57 30.9 u J28
2010-03-10 00:15:21 C 15 03 35.71 +69 57 37.0 u J28
2010-03-15 00:46:09 C 15 00 41.40 +70 15 29.6 u B88
2010-03-15 01:06:25 C 15 00 40.59 +70 15 32.0 u B88
2010-03-15 01:26:42 C 15 00 39.59 +70 15 34.3 u B88
2010-03-24 00:23:15 C 14 49 40.74 +70 05 42.6 18.9 u C20
2010-03-24 00:27:30 C 14 49 40.46 +70 05 41.8 18.8 u C20
2010-03-30 09:38:31 C 14 39 35.48 +69 30 32.8 o H21
2010-03-30 09:46:18 C 14 39 34.95 +69 30 31.0 o H21
2010-03-30 09:54:04 C 14 39 34.33 +69 30 28.9 o H21
2010-04-06 22:23:51 C 14 27 21.01 +68 22 00.2 c B11
2010-04-06 22:38:17 C 14 27 19.92 +68 21 53.9 c B11
2012-08-12 09:12:46 C 22 25 44.46 -17 05 03.3 o 291
2012-08-12 09:39:24 C 22 25 43.40 -17 05 18.9 o 291
2012-08-13 11:21:37 C 22 24 42.081 -17 19 37.05 t 568
2012-08-13 11:24:07 C 22 24 41.982 -17 19 38.51 t 568
2012-08-13 11:26:37 C 22 24 41.874 -17 19 39.93 t 568
2016-08-26 10:46:14 C 01 47 14.32 -27 55 46.5 o 291
2016-08-26 10:51:42 C 01 47 14.36 -27 55 53.0 o 291
2016-08-26 10:57:12 C 01 47 14.36 -27 56 00.5 o 291
2016-08-29 11:02:10 C 01 48 26.03 -29 18 17.3 o 291
2016-08-29 11:08:27 C 01 48 26.14 -29 18 25.0 o 291
2016-08-29 11:14:47 C 01 48 26.17 -29 18 32.0 o 291
2016-09-07 12:21:22 C 01 50 24.337 -33 42 35.33 L F51
2016-09-07 12:35:15 C 01 50 24.327 -33 42 53.04 L F51
2016-09-07 12:49:07 C 01 50 24.342 -33 43 10.36 L F51
2017-02-21 03:01:09 C 03 08 21.17 -10 34 28.2 o 691
2017-02-21 03:13:01 C 03 08 22.74 -10 33 51.8 o 691
2017-02-21 03:24:14 C 03 08 24.24 -10 33 17.6 o 691
2017-02-25 02:38:04 C 03 21 31.01 -05 31 17.8 o 691
2017-02-25 02:54:08 C 03 21 33.25 -05 30 24.5 o 691
2017-02-25 03:10:10 C 03 21 35.48 -05 29 31.5 o 691
2017-03-08 02:38:07 C 04 01 22.69 +10 02 11.5 o 691
2017-03-08 02:40:45 C 04 01 23.13 +10 02 21.4 o 691
2017-03-08 02:43:23 C 04 01 23.54 +10 02 30.9 o 691
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)