143947 (2003 YQ117)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6543186556 ± 3.88e-09
Semi-major axis (a)2.1819666391 AU ± 8.08e-10
Inclination (i)21.02942583° ± 1.87e-07
Long. of Asc. Node (Ω)217.48876804° ± 7.24e-07
Arg. of Perihelion (ω)135.71577595° ± 6.55e-07
Mean Anomaly (M)348.18414502° ± 6.82e-07
Mean Motion (n)0.3058018559°/day ± 1.70e-10
Perihelion dist (q)0.75426516 AU ± 8.46e-09
Aphelion dist (Q)3.60966812 AU ± 8.56e-09
Orbital Period3.22308797 yr ± 1.79e-09
Physical Parameters
H (abs. magnitude)15.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.030″
Uncertainty0
Orbit TypeApollo
MOID0.103711 AU
Observations Used1871
Gaia Obs Used138
Oppositions10
Arc Total2002-2017
First Observation Used2002-03-15
Last Observation Used2025-06-18
Observations (2011)
Date Type RA Dec Mag Band Observatory
2010-01-08 17:29:00 C 00 28 17.31 -12 49 15.3 17.1 u C20
2010-01-16 01:21:31 C 01 12 49.96 -11 05 30.8 u 448
2010-01-16 01:25:57 C 01 12 50.99 -11 05 28.0 u 448
2010-01-16 01:29:40 C 01 12 51.88 -11 05 25.6 u 448
2010-01-16 01:33:04 C 01 12 52.65 -11 05 23.5 u 448
2010-01-18 17:52:01 C 01 27 42.01 -10 24 01.6 17.9 u C20
2010-01-18 17:54:08 C 01 27 42.51 -10 24 00.1 17.6 u C20
2010-01-20 11:10:54 C 01 36 49.40 -09 56 44.6 r E12
2010-01-20 11:16:16 C 01 36 50.56 -09 56 41.1 r E12
2010-01-20 11:21:38 C 01 36 51.70 -09 56 37.2 r E12
2010-01-20 11:26:59 C 01 36 52.86 -09 56 33.7 r E12
2010-01-26 18:32:22 C 02 07 44.83 -08 16 31.8 17.9 u C20
2010-01-26 18:34:29 C 02 07 45.27 -08 16 30.1 17.8 u C20
2010-02-01 18:18:41 C 02 33 51.19 -06 42 31.2 17.9 u C20
2010-02-01 18:20:48 C 02 33 51.52 -06 42 29.6 18.0 u C20
2010-02-02 18:50:17 C 02 38 01.55 -06 26 48.5 17.5 u C20
2010-02-02 18:52:24 C 02 38 01.89 -06 26 47.5 17.8 u C20
2010-02-06 18:03:55 C 02 53 32.30 -05 27 03.7 18.0 u C20
2010-02-06 18:06:02 C 02 53 32.63 -05 27 01.9 18.2 u C20
2010-02-07 18:56:24 C 02 57 25.22 -05 11 47.5 18.1 u C20
2010-02-16 10:43:15 C 03 27 31.25 -03 10 41.9 r E12
2010-02-16 10:52:24 C 03 27 32.47 -03 10 36.9 r E12
2010-02-16 11:10:44 C 03 27 34.95 -03 10 26.9 r E12
2010-02-25 17:48:03 C 03 56 04.92 -01 15 17.1 19.0 u C20
2010-02-25 17:50:10 C 03 56 05.20 -01 15 16.3 18.8 u C20
2010-02-26 17:51:08 C 03 58 58.46 -01 03 45.2 19.4 u C20
2010-02-26 17:53:15 C 03 58 58.70 -01 03 44.0 19.3 u C20
2012-03-15 12:26:14 C 13 32 25.927 -20 21 42.92 L F51
2012-03-15 12:40:36 C 13 32 25.445 -20 21 39.86 L F51
2012-03-15 12:55:52 C 13 32 24.929 -20 21 36.54 L F51
2012-03-15 13:11:05 C 13 32 24.419 -20 21 33.49 L F51
2012-03-27 08:00:53 C 13 21 46.94 -19 06 46.4 r 703
2012-03-27 08:08:11 C 13 21 46.51 -19 06 43.7 r 703
2012-03-27 08:15:33 C 13 21 46.26 -19 06 43.5 r 703
2012-03-27 08:22:56 C 13 21 45.90 -19 06 38.5 r 703
2012-03-27 12:42:02 C 13 21 34.892 -19 05 15.11 L F51
2012-03-27 12:57:08 C 13 21 34.236 -19 05 10.43 L F51
2012-04-13 14:00:03 C 13 02 46.57 -16 25 07.0 r E12
2012-04-13 14:30:41 C 13 02 44.98 -16 24 53.0 r E12
2012-04-13 14:46:03 C 13 02 44.37 -16 24 46.6 r E12
2012-04-16 09:22:06 C 12 59 34.134 -15 54 20.57 L F51
2012-04-16 09:41:04 C 12 59 33.209 -15 54 11.78 L F51
2012-04-16 10:00:08 C 12 59 32.280 -15 54 02.87 L F51
2012-04-16 10:19:11 C 12 59 31.350 -15 53 54.05 L F51
2012-04-21 03:43:43 C 12 54 12.27 -15 00 05.2 L W91
2012-04-21 03:48:20 C 12 54 12.05 -15 00 02.9 L W91
2012-04-21 03:55:20 C 12 54 11.72 -14 59 59.5 L W91
2012-04-21 03:57:43 C 12 54 11.61 -14 59 58.4 L W91
2012-04-21 04:06:29 C 12 54 11.19 -14 59 54.1 L W91
2012-04-21 04:10:38 C 12 54 11.00 -14 59 52.1 L W91