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
1997-10-19 07:36:54 C 02 08 30.250 +18 17 21.08 l G91
1997-10-30 04:10:44 C 01 42 25.52 +07 57 54.5 19.0 b 704
1997-10-30 04:35:39 C 01 42 23.07 +07 56 55.7 b 704
1997-10-30 05:00:29 C 01 42 20.61 +07 55 59.9 b 704
1997-10-30 05:25:30 C 01 42 18.13 +07 54 58.9 b 704
1997-10-30 05:56:04 C 01 42 15.05 +07 53 47.5 b 704
1997-10-30 07:03:45 C 01 42 08.55 +07 51 04.8 19.0 b 704
1997-10-30 07:04:36 C 01 42 08.23 +07 51 02.5 b 704
1997-10-30 07:33:34 C 01 42 05.61 +07 49 54.2 b 704
1997-10-30 07:34:26 C 01 42 05.30 +07 49 52.1 b 704
1997-10-30 08:03:42 C 01 42 02.61 +07 48 43.3 b 704
1997-10-30 08:04:34 C 01 42 02.30 +07 48 41.8 b 704
1997-10-30 08:33:23 C 01 41 59.67 +07 47 33.5 b 704
1997-10-30 08:34:14 C 01 41 59.37 +07 47 31.7 b 704
1997-10-30 09:03:09 C 01 41 56.82 +07 46 23.9 b 704
1997-10-30 09:04:01 C 01 41 56.44 +07 46 21.0 b 704
1997-10-31 04:26:08 C 01 40 10.93 +07 01 15.9 673
1997-10-31 04:30:33 C 01 40 10.54 +07 01 06.2 673
1997-10-31 04:34:47 C 01 40 10.12 +07 00 56.7 673
1997-10-31 18:11:45 C 01 38 55.84 +06 29 23.8 046
1997-10-31 18:14:42 C 01 38 55.57 +06 29 16.8 046
1997-10-31 18:16:44 C 01 38 55.38 +06 29 12.3 046
1997-10-31 18:18:49 C 01 38 55.19 +06 29 07.5 046
1997-10-31 20:22:16 C 01 38 43.60 +06 24 24.2 557
1997-10-31 20:28:19 C 01 38 43.03 +06 24 10.4 557
1997-10-31 20:30:20 C 01 38 42.84 +06 24 05.8 557
1997-10-31 20:32:21 C 01 38 42.65 +06 24 01.1 557
1997-10-31 22:47:28 C 01 38 30.07 +06 18 53.3 620
1997-10-31 23:19:48 C 01 38 26.95 +06 17 39.8 620
1997-10-31 23:48:19 C 01 38 24.32 +06 16 35.3 620
1997-11-01 00:03:09 C 01 38 22.88 +06 16 01.1 620
1997-11-01 05:40:04 C 01 37 53.59 +06 03 10.7 673
1997-11-01 05:43:14 C 01 37 53.25 +06 03 03.4 673
1997-11-01 05:44:03 C 01 37 52.83 +06 03 01.7 b 704
1997-11-01 05:46:07 C 01 37 52.63 +06 02 56.8 b 704
1997-11-01 05:46:19 C 01 37 52.96 +06 02 56.3 673
1997-11-01 05:48:02 C 01 37 52.43 +06 02 52.8 b 704
1997-11-01 05:50:07 C 01 37 52.29 +06 02 47.8 b 704
1997-11-01 05:52:02 C 01 37 52.03 +06 02 43.8 b 704
1997-11-01 05:54:07 C 01 37 51.96 +06 02 38.5 b 704
1997-11-01 05:56:02 C 01 37 51.62 +06 02 34.6 b 704
1997-11-01 05:58:07 C 01 37 51.59 +06 02 29.4 b 704
1997-11-01 06:00:02 C 01 37 51.27 +06 02 25.3 b 704
1997-11-01 06:02:16 C 01 37 51.09 +06 02 20.1 b 704
1997-11-01 10:29:39 C 01 37 28.09 +05 52 36.4 z 422
1997-11-01 10:31:57 C 01 37 27.90 +05 52 32.1 z 422
1997-11-01 10:33:45 C 01 37 27.75 +05 52 27.8 z 422
1997-11-01 12:59:49 C 01 37 14.32 +05 46 55.2 426
1997-11-01 13:18:29 C 01 37 12.52 +05 46 13.0 426
1997-11-01 13:34:33 C 01 37 10.99 +05 45 35.6 426