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
2024-06-16 10:09:36 C 00 36 22.284 +32 02 05.60 V 703
2024-06-26 13:45:22 C 01 00 06.487 +34 16 58.80 V T08
2024-06-26 13:49:22 C 01 00 06.924 +34 17 01.18 V T08
2024-06-26 14:03:35 C 01 00 08.196 +34 17 09.56 V T08
2024-06-26 14:10:54 C 01 00 08.940 +34 17 12.84 V T08
2024-06-28 13:44:53 C 01 04 44.630 +34 40 45.44 V T05
2024-06-28 13:49:28 C 01 04 45.137 +34 40 47.71 V T05
2024-06-28 13:54:41 C 01 04 45.554 +34 40 50.95 V T05
2024-06-28 14:12:02 C 01 04 47.258 +34 40 58.94 V T05
2024-07-07 13:33:13 C 01 25 16.682 +36 16 41.84 V T05
2024-07-07 13:39:06 C 01 25 17.242 +36 16 44.44 V T05
2024-07-07 13:52:23 C 01 25 18.410 +36 16 50.12 V T05
2024-07-07 13:55:42 C 01 25 18.710 +36 16 52.00 V T05
2024-07-09 13:22:10 C 01 29 44.326 +36 35 32.53 V T08
2024-07-09 13:27:29 C 01 29 44.808 +36 35 33.90 V T08
2024-07-09 13:35:13 C 01 29 45.629 +36 35 37.90 V T08
2024-07-09 13:51:59 C 01 29 47.081 +36 35 44.74 V T08
2024-07-13 13:27:20 C 01 38 34.805 +37 10 45.19 V T08
2024-07-13 13:31:19 C 01 38 35.258 +37 10 46.45 V T08
2024-07-13 13:39:19 C 01 38 35.974 +37 10 48.40 V T08
2024-07-13 14:03:42 C 01 38 38.131 +37 10 58.30 V T08
2024-07-17 13:48:30 C 01 47 16.135 +37 42 29.66 V T08
2024-07-17 13:53:10 C 01 47 16.517 +37 42 31.90 V T08
2024-07-17 14:01:09 C 01 47 17.172 +37 42 34.09 V T08
2024-07-17 14:10:21 C 01 47 18.017 +37 42 36.40 V T08
2024-07-18 13:43:04 C 01 49 23.597 +37 49 49.12 V T05
2024-07-18 13:47:38 C 01 49 24.026 +37 49 50.84 V T05
2024-07-18 13:56:42 C 01 49 24.814 +37 49 53.54 V T05
2024-07-18 14:10:59 C 01 49 26.030 +37 49 58.04 V T05
2024-08-07 13:41:26 C 02 28 37.104 +39 29 10.79 V T08
2024-08-07 13:45:31 C 02 28 37.387 +39 29 11.18 V T08
2024-08-07 14:00:35 C 02 28 38.441 +39 29 13.13 V T08
2024-08-07 14:09:40 C 02 28 39.060 +39 29 14.17 V T08
2024-08-11 13:02:10 C 02 35 21.847 +39 37 06.67 V T08
2024-08-11 13:05:31 C 02 35 22.025 +39 37 07.79 V T08
2024-08-11 13:09:31 C 02 35 22.183 +39 37 08.58 V T08
2024-08-11 13:32:02 C 02 35 23.695 +39 37 09.44 V T08
2024-08-15 13:23:27 C 02 41 42.698 +39 40 39.61 V T08
2024-08-15 13:32:36 C 02 41 43.214 +39 40 39.40 V T08
2024-08-15 13:39:37 C 02 41 43.603 +39 40 39.86 V T08
2024-08-15 13:59:15 C 02 41 44.746 +39 40 40.26 V T08
2024-08-17 13:05:27 C 02 44 40.073 +39 40 38.03 V T05
2024-08-17 13:06:06 C 02 44 40.138 +39 40 37.56 V T05
2024-08-17 13:08:04 C 02 44 40.157 +39 40 37.63 V T05
2024-08-17 13:08:43 C 02 44 40.243 +39 40 37.70 V T05
2024-08-17 13:30:12 C 02 44 41.400 +39 40 38.21 V T05
2024-08-17 13:45:04 C 02 44 42.185 +39 40 38.21 V T05
2024-08-23 00:38:37 C 02 52 05.770 +39 34 02.42 V 088
2024-08-23 00:41:49 C 02 52 05.926 +39 34 02.17 V 088
2024-08-23 00:45:31 C 02 52 06.101 +39 34 02.39 V 088