219071 (1997 US9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2820711429 ± 6.63e-09
Semi-major axis (a)1.0527884824 AU ± 1.46e-10
Inclination (i)20.01820269° ± 6.53e-07
Long. of Asc. Node (Ω)212.18222472° ± 1.22e-06
Arg. of Perihelion (ω)357.39208828° ± 1.90e-06
Mean Anomaly (M)182.27746302° ± 1.78e-06
Mean Motion (n)0.9124321690°/day ± 1.90e-10
Perihelion dist (q)0.75582723 AU ± 6.98e-09
Aphelion dist (Q)1.34974973 AU ± 6.98e-09
Orbital Period1.08021869 yr ± 2.25e-10
Physical Parameters
H (abs. magnitude)17.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.078″
Uncertainty0
Orbit TypeApollo
MOID0.249406 AU
Observations Used2715
Gaia Obs Used144
Oppositions1
Arc Total1997-2015
First Observation Used1997-10-19
Last Observation Used2025-12-13
Observations (2988)
Date Type RA Dec Mag Band Observatory
2010-10-15 10:39:25 C 04 18 58.50 +18 19 48.2 17.1 c 704
2010-10-15 10:59:21 C 04 18 57.79 +18 19 16.2 17.2 c 704
2010-10-15 11:19:19 C 04 18 57.06 +18 18 44.1 17.6 c 704
2010-10-16 16:40:20 C 04 17 59.86 +17 30 48.8 o 300
2010-10-16 16:44:55 C 04 17 59.68 +17 30 41.3 o 300
2010-10-16 16:47:12 C 04 17 59.57 +17 30 37.7 o 300
2010-10-17 08:55:53 C 04 17 24.53 +17 03 32.7 17.4 c 704
2010-10-17 09:15:37 C 04 17 23.69 +17 02 59.0 17.8 c 704
2010-10-17 09:35:30 C 04 17 22.84 +17 02 25.4 17.9 c 704
2010-10-17 09:56:03 C 04 17 21.92 +17 01 51.5 17.7 c 704
2010-10-17 10:15:53 C 04 17 21.13 +17 01 16.8 17.7 c 704
2010-10-19 08:42:53 C 04 15 27.36 +15 40 11.3 o H47
2010-10-19 08:50:42 C 04 15 26.99 +15 39 57.5 o H47
2010-10-19 09:00:07 C 04 15 26.51 +15 39 39.8 o H47
2010-10-19 09:55:09 C 04 15 24.19 +15 38 01.2 r 703
2010-10-19 10:02:47 C 04 15 23.79 +15 37 47.3 r 703
2010-10-19 10:07:43 C 04 15 23.58 +15 37 38.9 r 703
2010-10-19 10:12:38 C 04 15 23.29 +15 37 29.3 r 703
2010-10-21 00:31:01 C 04 13 35.27 +14 27 06.2 u 160
2010-10-21 00:34:02 C 04 13 35.10 +14 27 00.5 u 160
2010-10-21 00:37:16 C 04 13 34.95 +14 26 54.3 u 160
2010-10-22 00:14:09 C 04 12 21.83 +13 42 03.2 u 160
2010-10-22 00:17:15 C 04 12 21.64 +13 41 57.0 u 160
2010-10-22 00:20:20 C 04 12 21.48 +13 41 51.3 u 160
2010-10-29 10:54:46 C 04 00 32.47 +07 28 20.6 r 703
2010-10-29 11:06:24 C 04 00 31.53 +07 27 54.8 r 703
2010-10-29 11:18:05 C 04 00 30.56 +07 27 28.5 r 703
2010-10-29 11:29:43 C 04 00 29.59 +07 27 02.1 r 703
2010-11-04 23:14:44 C 03 46 49.22 +01 23 45.2 u A13
2010-11-04 23:35:55 C 03 46 47.07 +01 22 54.6 u A13
2010-11-05 01:51:57 C 03 46 33.18 +01 17 30.1 u 160
2010-11-05 01:53:03 C 03 46 33.07 +01 17 27.6 u 160
2010-11-05 01:54:09 C 03 46 32.95 +01 17 24.8 u 160
2010-11-05 01:55:17 C 03 46 32.83 +01 17 22.1 u 160
2010-11-07 09:28:28 C 03 41 02.40 -00 55 35.5 r 703
2010-11-07 09:38:20 C 03 41 01.35 -00 55 59.0 r 703
2010-11-07 09:54:39 C 03 40 59.59 -00 56 37.9 r 703
2010-11-07 10:04:34 C 03 40 58.54 -00 57 01.8 r 703
2010-11-09 07:45:10 C 03 36 16.90 -02 46 00.5 16.6 c 704
2010-11-09 08:03:38 C 03 36 14.83 -02 46 44.5 16.7 c 704
2010-11-09 08:22:02 C 03 36 12.79 -02 47 28.2 16.9 c 704
2010-11-09 08:40:26 C 03 36 10.80 -02 48 12.2 17.1 c 704
2010-11-09 08:58:54 C 03 36 08.73 -02 48 55.4 17.2 c 704
2010-11-10 06:20:23 C 03 33 54.98 -03 39 27.7 16.5 c 704
2010-11-10 06:38:40 C 03 33 52.93 -03 40 10.8 16.5 c 704
2010-11-10 06:57:04 C 03 33 50.89 -03 40 54.3 16.4 c 704
2010-11-10 07:15:23 C 03 33 48.84 -03 41 37.3 16.6 c 704
2010-11-10 07:33:42 C 03 33 46.80 -03 42 20.7 16.5 c 704
2010-11-12 20:47:50 C 03 27 15.18 -06 04 46.7 r J37
2010-11-12 21:16:52 C 03 27 11.94 -06 05 54.0 r J37