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
2025-10-02 17:22:53 C 22 29 04.59 +29 18 25.0 X C40
2025-10-02 17:25:02 C 22 29 04.54 +29 18 19.2 X C40
2025-10-02 17:27:10 C 22 29 04.50 +29 18 13.1 X C40
2025-10-02 17:29:19 C 22 29 04.44 +29 18 07.4 X C40
2025-10-02 17:31:28 C 22 29 04.41 +29 18 01.4 X C40
2025-10-02 17:33:36 C 22 29 04.36 +29 17 55.6 X C40
2025-10-02 17:35:45 C 22 29 04.31 +29 17 49.7 X C40
2025-10-02 17:37:54 C 22 29 04.27 +29 17 43.9 X C40
2025-10-02 17:40:04 C 22 29 04.22 +29 17 38.0 X C40
2025-10-02 17:42:12 C 22 29 04.17 +29 17 32.0 X C40
2025-10-02 17:44:20 C 22 29 04.14 +29 17 26.1 X C40
2025-10-02 18:43:05 B 22 29 03.35 +29 14 42.9 q D71
2025-10-02 18:44:24 B 22 29 03.32 +29 14 39.0 q D71
2025-10-02 18:45:44 B 22 29 03.30 +29 14 35.7 q D71
2025-10-02 19:47:34 C 22 29 01.418 +29 11 47.54 X S89
2025-10-02 19:49:05 C 22 29 01.375 +29 11 43.58 X S89
2025-10-02 19:50:37 C 22 29 01.361 +29 11 39.05 X S89
2025-10-02 20:16:44 C 22 29 01.49 +29 10 26.9 V G17
2025-10-02 20:24:08 C 22 29 01.35 +29 10 07.0 V G17
2025-10-02 20:31:32 C 22 29 01.18 +29 09 46.6 V G17
2025-10-03 04:32:21 C 22 28 54.048 +28 47 46.64 V G96
2025-10-03 04:39:49 C 22 28 53.936 +28 47 26.34 V G96
2025-10-03 04:47:18 C 22 28 53.735 +28 47 05.53 V G96
2025-10-03 04:54:46 C 22 28 53.580 +28 46 44.98 V G96
2025-10-03 16:57:36 C 22 28 44.30 +28 13 31.5 X C40
2025-10-03 17:00:10 C 22 28 44.24 +28 13 24.6 X C40
2025-10-03 17:02:45 C 22 28 44.20 +28 13 17.6 X C40
2025-10-03 17:05:20 C 22 28 44.16 +28 13 10.5 X C40
2025-10-03 17:07:54 C 22 28 44.11 +28 13 03.7 X C40
2025-10-03 17:10:28 C 22 28 44.07 +28 12 56.6 X C40
2025-10-03 17:13:03 C 22 28 44.02 +28 12 49.6 X C40
2025-10-03 17:15:37 C 22 28 43.97 +28 12 42.5 X C40
2025-10-03 17:18:05 C 22 28 43.92 +28 12 35.9 X C40
2025-10-03 17:20:26 C 22 28 43.89 +28 12 29.4 X C40
2025-10-03 17:22:48 C 22 28 43.84 +28 12 22.9 X C40
2025-10-03 17:25:10 C 22 28 43.80 +28 12 16.5 X C40
2025-10-03 19:49:37 B 22 28 42.542 +28 05 45.31 X J51
2025-10-03 20:01:52 B 22 28 42.358 +28 05 11.54 X J51
2025-10-03 20:14:04 B 22 28 42.103 +28 04 38.50 X J51
2025-10-04 08:20:25 C 22 28 32.431 +27 31 34.50 V T08
2025-10-04 08:23:45 C 22 28 32.376 +27 31 25.39 V T08
2025-10-04 08:24:25 C 22 28 32.364 +27 31 23.70 V T08
2025-10-04 08:28:32 C 22 28 32.285 +27 31 12.32 V T08
2025-10-04 08:34:24 C 22 28 32.172 +27 30 56.12 V T08
2025-10-04 08:37:53 C 22 28 32.119 +27 30 46.58 V T08
2025-10-04 08:49:53 C 22 28 31.882 +27 30 13.75 V T08
2025-10-04 08:53:11 C 22 28 31.834 +27 30 04.61 V T08
2025-10-04 17:10:44 C 22 28 27.65 +27 07 14.3 X C40
2025-10-04 17:13:18 C 22 28 27.60 +27 07 07.5 X C40
2025-10-04 17:15:53 C 22 28 27.55 +27 07 00.2 X C40