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
2024-10-26 08:52:46 C 02 03 01.519 +11 22 37.63 V V57
2024-10-26 09:53:09 C 02 02 55.121 +11 20 12.48 V V57
2024-10-26 09:54:11 C 02 02 54.991 +11 20 09.74 V V57
2024-10-26 09:55:11 C 02 02 54.900 +11 20 07.58 V V57
2024-10-26 10:19:19 C 02 02 52.325 +11 19 08.94 V V57
2024-10-26 10:20:21 C 02 02 52.243 +11 19 07.14 V V57
2024-10-26 10:21:21 C 02 02 52.126 +11 19 04.58 V V57
2024-10-27 02:16:40 C 02 01 17.650 +10 41 01.93 V V57
2024-10-27 02:17:40 C 02 01 17.542 +10 40 59.77 V V57
2024-10-27 02:18:42 C 02 01 17.455 +10 40 57.29 V V57
2024-10-27 03:01:59 B 02 01 12.679 +10 39 14.40 Z W05
2024-10-27 03:31:20 C 02 01 09.785 +10 38 04.52 V V57
2024-10-27 03:32:21 C 02 01 09.684 +10 38 02.18 V V57
2024-10-27 03:33:21 C 02 01 09.588 +10 37 59.92 V V57
2024-10-27 04:58:31 B 02 01 00.250 +10 34 36.48 Z W05
2024-10-27 05:24:27 C 02 00 57.725 +10 33 35.17 V V57
2024-10-27 05:25:28 C 02 00 57.593 +10 33 32.94 V V57
2024-10-27 05:26:30 C 02 00 57.516 +10 33 30.64 V V57
2024-10-27 06:24:59 C 02 00 51.505 +10 31 10.45 V 703
2024-10-27 06:28:17 C 02 00 51.152 +10 31 02.60 V 703
2024-10-27 06:31:36 C 02 00 50.807 +10 30 54.72 V 703
2024-10-27 06:34:55 C 02 00 50.443 +10 30 46.94 V 703
2024-10-27 07:10:50 C 02 00 46.327 +10 29 21.52 V V57
2024-10-27 07:11:51 C 02 00 46.214 +10 29 18.92 V V57
2024-10-27 07:12:13 B 02 00 45.914 +10 29 17.30 Z W05
2024-10-27 07:12:51 C 02 00 46.090 +10 29 16.69 V V57
2024-10-27 08:29:06 C 02 00 37.958 +10 26 14.10 V V57
2024-10-27 08:30:08 C 02 00 37.867 +10 26 11.80 V V57
2024-10-27 08:31:07 C 02 00 37.745 +10 26 09.10 V V57
2024-10-27 09:42:01 C 02 00 30.269 +10 23 19.32 V V57
2024-10-27 09:43:01 C 02 00 30.130 +10 23 16.62 V V57
2024-10-28 02:33:57 C 01 58 50.767 +09 43 05.95 V V57
2024-10-28 02:34:59 C 01 58 50.606 +09 43 03.07 V V57
2024-10-28 02:35:58 C 01 58 50.530 +09 43 00.44 V V57
2024-10-28 03:31:30 C 01 58 44.083 +09 41 15.00 V W68
2024-10-28 03:35:27 C 01 58 43.656 +09 41 05.57 V W68
2024-10-28 03:40:39 C 01 58 43.109 +09 40 53.22 V W68
2024-10-28 03:47:59 C 01 58 42.334 +09 40 35.76 V W68
2024-10-28 06:44:30 C 01 58 24.557 +09 33 10.19 V 703
2024-10-28 06:47:49 C 01 58 24.200 +09 33 02.16 V 703
2024-10-28 06:51:09 C 01 58 23.848 +09 32 54.24 V 703
2024-10-28 06:54:29 C 01 58 23.495 +09 32 46.36 V 703
2024-10-29 02:16:34 C 01 56 28.994 +08 46 44.83 V V57
2024-10-29 02:17:33 C 01 56 28.922 +08 46 42.35 V V57
2024-10-29 02:18:35 C 01 56 28.812 +08 46 39.90 V V57
2024-10-29 02:42:49 B 01 56 25.53 +08 45 58.2 Z X33
2024-10-29 02:45:14 C 01 56 26.081 +08 45 37.12 V V57
2024-10-29 02:46:14 C 01 56 25.930 +08 45 34.38 V V57
2024-10-29 02:46:24 B 01 56 25.15 +08 45 49.7 Z X33
2024-10-29 02:47:15 C 01 56 25.858 +08 45 32.36 V V57