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
2010-01-25 06:28:36 C 02 04 06.08 -86 24 57.4 o 844
2010-09-09 02:18:25 C 04 01 32.45 +31 37 08.0 r J75
2010-09-09 02:36:41 C 04 01 33.52 +31 37 00.2 r J75
2010-09-09 02:54:57 C 04 01 34.51 +31 36 52.8 r J75
2010-09-10 09:58:51 C 04 03 21.70 +31 23 32.7 18.6 c 704
2010-09-10 10:15:48 C 04 03 22.56 +31 23 25.0 18.7 c 704
2010-09-10 10:33:01 C 04 03 23.51 +31 23 17.0 19.0 c 704
2010-09-10 10:49:58 C 04 03 24.38 +31 23 09.8 19.0 c 704
2010-09-10 11:06:55 C 04 03 25.31 +31 23 02.3 18.8 c 704
2010-09-13 03:10:39 C 04 06 53.76 +30 52 48.0 u 160
2010-09-13 03:14:34 C 04 06 53.75 +30 52 47.1 u 160
2010-09-16 10:00:07 C 04 10 46.20 +30 10 42.5 18.3 c 704
2010-09-16 10:17:50 C 04 10 46.88 +30 10 33.0 18.9 c 704
2010-09-16 10:35:24 C 04 10 47.72 +30 10 22.5 18.5 c 704
2010-09-16 10:53:05 C 04 10 48.45 +30 10 12.4 18.7 c 704
2010-09-16 11:10:39 C 04 10 49.14 +30 10 01.9 18.7 c 704
2010-09-20 03:32:23 C 04 14 34.97 +29 15 32.1 u 160
2010-09-20 03:34:37 C 04 14 35.07 +29 15 30.3 u 160
2010-09-21 01:39:30 C 04 15 25.94 +29 00 36.4 u 160
2010-09-21 01:43:29 C 04 15 26.08 +29 00 33.8 u 160
2010-09-21 01:47:26 C 04 15 26.18 +29 00 31.1 u 160
2010-10-08 08:36:36 C 04 22 13.26 +22 23 47.8 17.7 c 704
2010-10-08 08:55:41 C 04 22 13.07 +22 23 23.7 18.2 c 704
2010-10-08 09:14:52 C 04 22 12.87 +22 22 59.2 18.0 c 704
2010-10-08 09:53:19 C 04 22 12.37 +22 22 10.3 17.8 c 704
2010-10-09 10:08:20 C 04 21 58.69 +21 50 39.5 17.4 c 704
2010-10-09 10:27:46 C 04 21 58.35 +21 50 14.1 17.9 c 704
2010-10-09 10:47:14 C 04 21 58.05 +21 49 48.3 17.8 c 704
2010-10-09 11:06:58 C 04 21 57.73 +21 49 21.6 18.2 c 704
2010-10-09 11:26:38 C 04 21 57.40 +21 48 55.5 17.9 c 704
2010-10-10 10:10:28 C 04 21 40.54 +21 18 21.8 17.3 c 704
2010-10-10 10:29:50 C 04 21 40.16 +21 17 55.3 17.7 c 704
2010-10-10 10:49:33 C 04 21 39.79 +21 17 28.3 17.6 c 704
2010-10-10 11:08:57 C 04 21 39.40 +21 17 01.5 17.8 c 704
2010-10-10 11:29:14 C 04 21 39.04 +21 16 33.5 17.7 c 704
2010-10-11 10:17:54 C 04 21 17.65 +20 44 51.2 17.4 c 704
2010-10-11 10:38:03 C 04 21 17.19 +20 44 22.8 17.4 c 704
2010-10-11 10:58:14 C 04 21 16.75 +20 43 54.1 17.4 c 704
2010-10-11 11:18:20 C 04 21 16.30 +20 43 25.7 17.4 c 704
2010-10-11 11:38:40 C 04 21 15.84 +20 42 56.8 17.4 c 704
2010-10-14 08:42:57 C 04 19 44.14 +19 00 39.2 17.2 c 704
2010-10-14 09:02:37 C 04 19 43.51 +19 00 09.1 17.4 c 704
2010-10-14 09:22:18 C 04 19 42.89 +18 59 38.6 17.4 c 704
2010-10-14 09:41:59 C 04 19 42.23 +18 59 08.2 17.4 c 704
2010-10-14 10:01:43 C 04 19 41.60 +18 58 37.4 17.6 c 704
2010-10-15 09:36:56 C 04 19 00.42 +18 21 28.6 o H47
2010-10-15 09:44:11 C 04 19 00.19 +18 21 16.6 o H47
2010-10-15 09:50:55 C 04 18 59.93 +18 21 05.5 o H47
2010-10-15 09:59:17 C 04 18 59.93 +18 20 52.6 17.0 c 704
2010-10-15 10:19:27 C 04 18 59.24 +18 20 20.7 17.3 c 704