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
2023-11-13 12:31:20 C 05 25 09.448 -09 13 18.80 X F51
2023-11-13 12:51:58 C 05 25 08.183 -09 14 11.95 X F51
2023-11-13 13:30:38 C 05 25 05.813 -09 15 51.62 X F51
2023-11-16 04:25:01 C 05 21 21.955 -11 59 04.81 V W68
2023-11-16 04:27:36 C 05 21 21.766 -11 59 11.69 V W68
2023-11-16 04:44:53 C 05 21 20.563 -11 59 56.94 V W68
2023-11-17 21:58:36 C 05 18 34.010 -13 47 57.55 V M22
2023-11-17 22:01:13 C 05 18 33.814 -13 48 04.57 V M22
2023-11-17 22:08:41 C 05 18 33.240 -13 48 24.16 V M22
2023-11-17 22:31:06 C 05 18 31.546 -13 49 23.05 V M22
2023-11-18 11:55:34 C 05 17 33.440 -14 24 55.53 X F51
2023-11-18 12:11:45 C 05 17 32.155 -14 25 37.88 X F51
2023-11-18 12:29:24 C 05 17 30.751 -14 26 24.16 X F51
2023-11-18 12:47:00 C 05 17 29.357 -14 27 10.21 X F51
2023-11-18 22:04:55 C 05 16 49.649 -14 51 41.04 o M52
2023-11-18 22:32:13 C 05 16 47.484 -14 52 53.04 o M52
2023-11-19 03:51:12 C 05 16 23.938 -15 06 18.65 V W68
2023-11-19 03:54:34 C 05 16 23.669 -15 06 27.50 V W68
2023-11-19 03:58:29 C 05 16 23.352 -15 06 37.76 V W68
2023-11-19 04:06:23 C 05 16 22.718 -15 06 58.75 V W68
2023-11-20 06:15:31 C 05 14 21.602 -16 15 24.70 V W68
2023-11-20 06:20:14 C 05 14 21.202 -16 15 37.04 V W68
2023-11-20 07:02:48 C 05 14 17.585 -16 17 28.03 V W68
2023-11-20 07:43:48 C 05 14 14.107 -16 19 14.74 V W68
2023-11-20 10:47:48 C 05 14 00.610 -16 27 36.68 X F51
2023-11-20 11:03:33 C 05 13 59.262 -16 28 17.64 X F51
2023-11-20 11:19:21 C 05 13 57.896 -16 28 59.10 X F51
2023-11-21 09:54:37 C 05 12 07.693 -17 27 51.34 V 703
2023-11-21 10:01:21 C 05 12 07.121 -17 28 08.62 V 703
2023-11-21 10:08:06 C 05 12 06.505 -17 28 26.22 V 703
2023-11-21 10:14:50 C 05 12 05.940 -17 28 43.50 V 703
2023-11-23 06:10:32 C 05 08 21.283 -19 21 39.31 V W68
2023-11-23 06:15:11 C 05 08 20.842 -19 21 51.16 V W68
2023-11-23 06:25:04 C 05 08 20.954 -19 22 40.30 V 703
2023-11-23 06:32:38 C 05 08 20.238 -19 22 59.66 V 703
2023-11-23 06:40:14 C 05 08 19.518 -19 23 19.90 V 703
2023-11-23 06:47:49 C 05 08 18.794 -19 23 39.98 V 703
2023-11-23 07:02:26 C 05 08 16.354 -19 23 51.90 V W68
2023-11-23 07:43:47 C 05 08 12.434 -19 25 37.16 V W68
2023-11-23 22:18:39 C 05 06 55.404 -20 02 49.42 V M22
2023-11-23 22:21:15 C 05 06 55.154 -20 02 55.75 V M22
2023-11-23 22:40:26 C 05 06 53.297 -20 03 44.71 V M22
2023-11-23 23:05:44 C 05 06 50.846 -20 04 49.51 V M22
2023-11-24 23:27:25 C 05 04 36.010 -21 06 25.27 V M22
2023-11-24 23:31:32 C 05 04 35.597 -21 06 35.53 V M22
2023-11-25 00:22:34 C 05 04 30.475 -21 08 43.76 V M22
2023-11-25 00:29:59 C 05 04 29.724 -21 09 02.16 V M22
2023-11-26 19:06:06 C 05 00 25.018 -22 54 41.51 X L68
2023-11-26 19:07:58 C 05 00 24.874 -22 54 45.97 X L68
2023-11-26 19:09:52 C 05 00 24.655 -22 54 49.79 X L68