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
2023-10-07 08:43:42 C 05 23 28.855 +18 37 06.46 V W68
2023-10-08 13:17:07 C 05 24 46.466 +18 03 53.24 V T05
2023-10-08 13:19:44 C 05 24 46.577 +18 03 50.22 V T05
2023-10-08 13:23:51 C 05 24 46.738 +18 03 45.47 V T05
2023-10-08 13:31:39 C 05 24 47.052 +18 03 36.07 V T05
2023-10-10 12:34:24 C 05 26 46.512 +17 06 41.22 V T05
2023-10-10 12:37:40 C 05 26 46.632 +17 06 37.55 V T05
2023-10-10 12:41:35 C 05 26 46.831 +17 06 32.51 V T05
2023-10-10 12:43:32 C 05 26 46.841 +17 06 30.24 V T05
2023-10-10 13:03:10 C 05 26 47.561 +17 06 05.47 V T05
2023-10-11 02:20:57 B 05 27 19.20 +16 49 19.8 X K19
2023-10-11 02:26:16 B 05 27 19.43 +16 49 12.8 X K19
2023-10-11 02:31:39 B 05 27 19.63 +16 49 05.4 X K19
2023-10-11 09:27:30 C 05 27 36.068 +16 40 20.68 V G96
2023-10-11 09:34:54 C 05 27 36.349 +16 40 11.86 V G96
2023-10-11 09:42:18 C 05 27 36.583 +16 40 01.92 V G96
2023-10-11 09:49:42 C 05 27 36.911 +16 39 53.21 V G96
2023-10-13 07:01:20 C 05 29 16.738 +15 40 59.63 V W68
2023-10-13 07:03:56 C 05 29 16.793 +15 40 55.92 V W68
2023-10-13 07:08:30 C 05 29 16.949 +15 40 49.87 V W68
2023-10-13 07:16:19 C 05 29 17.203 +15 40 38.96 V W68
2023-10-14 07:34:21 C 05 30 06.528 +15 07 32.99 V W68
2023-10-14 07:36:58 C 05 30 06.581 +15 07 29.53 V W68
2023-10-14 07:41:31 C 05 30 06.725 +15 07 23.27 V W68
2023-10-14 07:49:21 C 05 30 06.950 +15 07 12.22 V W68
2023-10-18 11:01:43 C 05 32 55.273 +12 41 49.78 V 703
2023-10-18 11:10:42 C 05 32 55.511 +12 41 36.24 V 703
2023-10-18 11:19:41 C 05 32 55.738 +12 41 22.31 V 703
2023-10-22 11:16:19 C 05 34 44.896 +10 05 00.45 V U68
2023-10-22 11:21:08 C 05 34 44.939 +10 04 52.15 V U68
2023-10-22 11:47:48 C 05 34 45.201 +10 04 06.46 V U68
2023-10-22 11:52:37 C 05 34 45.280 +10 03 57.87 V U68
2023-10-23 07:14:52 C 05 35 00.746 +09 30 43.27 V W68
2023-10-23 07:48:31 C 05 35 00.986 +09 29 44.56 V W68
2023-10-23 07:59:17 C 05 35 01.068 +09 29 25.76 V W68
2023-10-25 06:59:01 C 05 35 27.842 +08 05 02.62 V W68
2023-10-25 07:01:38 C 05 35 27.818 +08 04 57.79 V W68
2023-10-25 07:06:51 C 05 35 27.814 +08 04 47.89 V W68
2023-10-25 07:35:33 C 05 35 27.890 +08 03 55.44 V W68
2023-10-26 14:08:26 C 05 35 36.942 +07 06 34.17 X F51
2023-10-26 14:24:52 C 05 35 36.912 +07 06 02.94 X F51
2023-10-26 14:39:59 C 05 35 36.884 +07 05 34.21 X F51
2023-10-26 14:55:06 C 05 35 36.858 +07 05 05.49 X F51
2023-10-30 16:51:16 C 05 35 23.676 +03 50 17.70 V P07
2023-10-30 18:13:58 C 05 35 22.526 +03 47 25.73 V P07
2023-10-30 18:42:52 C 05 35 22.174 +03 46 24.96 V P07
2023-10-30 19:08:57 C 05 35 21.792 +03 45 30.38 V P07
2023-11-03 12:01:36 C 05 34 04.814 +00 32 18.28 V 703
2023-11-03 12:09:31 C 05 34 04.613 +00 32 00.42 V 703
2023-11-03 12:17:27 C 05 34 04.422 +00 31 42.71 V 703