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
2025-09-29 20:18:25 B 22 30 29.102 +32 29 26.48 V 160
2025-09-30 02:10:13 B 22 30 20.372 +32 13 12.60 X H89
2025-09-30 03:54:01 B 22 30 17.238 +32 08 25.26 X H89
2025-09-30 04:53:42 C 22 30 16.319 +32 05 45.85 V 703
2025-09-30 04:57:19 C 22 30 16.196 +32 05 36.10 V 703
2025-09-30 05:00:56 C 22 30 16.088 +32 05 26.09 V 703
2025-09-30 05:04:40 C 22 30 15.973 +32 05 15.68 V 703
2025-09-30 05:16:30 B 22 30 14.809 +32 04 35.69 X H89
2025-09-30 06:20:26 C 22 30 14.980 +32 01 49.29 X F51
2025-09-30 06:37:07 C 22 30 14.468 +32 01 03.51 X F51
2025-09-30 06:53:48 C 22 30 13.952 +32 00 17.67 X F51
2025-09-30 07:10:28 C 22 30 13.433 +31 59 31.86 X F51
2025-09-30 08:38:59 C 22 30 10.661 +31 55 27.37 V T05
2025-09-30 08:49:10 C 22 30 10.334 +31 54 59.29 V T05
2025-09-30 08:53:44 C 22 30 10.205 +31 54 46.55 V T05
2025-09-30 09:10:14 C 22 30 09.682 +31 54 00.65 V T05
2025-09-30 18:15:33 C 22 29 58.618 +31 28 36.23 Z C23
2025-09-30 20:01:02 C 22 29 55.834 +31 23 46.00 Z C23
2025-09-30 20:27:48 B 22 29 55.810 +31 22 39.90 X J51
2025-09-30 20:38:09 B 22 29 55.529 +31 22 11.64 X J51
2025-09-30 20:47:32 B 22 29 55.274 +31 21 46.08 X J51
2025-09-30 21:02:38 B 22 29 54.322 +31 20 58.02 Z R68
2025-09-30 21:06:02 B 22 29 54.228 +31 20 48.52 Z R68
2025-09-30 21:08:26 B 22 29 54.170 +31 20 41.89 Z R68
2025-09-30 23:22:06 B 22 29 50.570 +31 14 30.95 q Y84
2025-09-30 23:28:00 B 22 29 50.422 +31 14 14.57 q Y84
2025-09-30 23:32:09 B 22 29 50.306 +31 14 03.08 q Y84
2025-10-01 04:50:16 C 22 29 44.185 +30 59 29.72 V 703
2025-10-01 04:53:36 C 22 29 44.167 +30 59 20.65 V 703
2025-10-01 04:56:55 C 22 29 44.092 +30 59 11.22 V 703
2025-10-01 05:00:14 C 22 29 44.020 +30 59 02.44 V 703
2025-10-01 08:48:47 C 22 29 38.969 +30 48 34.74 V T05
2025-10-01 08:53:24 C 22 29 38.846 +30 48 21.96 V T05
2025-10-01 09:01:20 C 22 29 38.621 +30 48 00.00 V T05
2025-10-01 09:17:17 C 22 29 38.174 +30 47 15.54 V T05
2025-10-01 18:48:35 B 22 29 28.282 +30 20 44.48 V 160
2025-10-01 18:52:20 B 22 29 28.210 +30 20 33.83 V 160
2025-10-01 18:56:01 B 22 29 28.145 +30 20 23.60 V 160
2025-10-01 20:28:01 B 22 29 25.913 +30 16 08.36 Z K35
2025-10-01 20:29:49 B 22 29 25.867 +30 16 03.32 Z K35
2025-10-01 20:31:37 B 22 29 25.836 +30 15 58.43 Z K35
2025-10-01 20:33:25 B 22 29 25.800 +30 15 53.46 Z K35
2025-10-01 21:15:21 B 22 29 25.471 +30 14 05.71 X J51
2025-10-01 21:27:23 B 22 29 25.176 +30 13 32.88 X J51
2025-10-01 21:39:23 B 22 29 24.900 +30 12 59.76 X J51
2025-10-02 04:52:37 C 22 29 16.645 +29 53 02.08 V 703
2025-10-02 04:56:21 C 22 29 16.577 +29 52 51.42 V 703
2025-10-02 05:00:06 C 22 29 16.472 +29 52 41.12 V 703
2025-10-02 05:03:54 C 22 29 16.375 +29 52 30.54 V 703
2025-10-02 17:20:44 C 22 29 04.63 +29 18 30.8 X C40