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
2023-11-03 12:25:23 C 05 34 04.235 +00 31 24.53 V 703
2023-11-03 13:58:08 C 05 34 02.749 +00 27 59.65 X F51
2023-11-03 14:15:10 C 05 34 02.306 +00 27 21.26 X F51
2023-11-03 14:32:11 C 05 34 01.864 +00 26 42.89 X F51
2023-11-03 14:49:12 C 05 34 01.423 +00 26 04.48 X F51
2023-11-04 06:27:06 C 05 33 42.055 -00 09 06.01 V W68
2023-11-04 07:02:00 C 05 33 41.071 -00 10 25.46 V W68
2023-11-04 07:13:54 C 05 33 40.747 -00 10 52.64 V W68
2023-11-04 07:32:06 C 05 33 40.241 -00 11 34.04 V W68
2023-11-04 08:47:48 C 05 33 38.112 -00 14 26.84 V W68
2023-11-04 11:17:15 C 05 33 34.693 -00 20 31.56 V 703
2023-11-04 11:24:17 C 05 33 34.484 -00 20 47.87 V 703
2023-11-04 11:31:18 C 05 33 34.297 -00 21 03.89 V 703
2023-11-04 11:38:20 C 05 33 34.110 -00 21 19.87 V 703
2023-11-06 11:07:40 C 05 32 18.344 -02 12 05.62 V 703
2023-11-06 11:16:16 C 05 32 18.056 -02 12 26.03 V 703
2023-11-06 11:24:52 C 05 32 17.750 -02 12 46.33 V 703
2023-11-06 11:33:28 C 05 32 17.452 -02 13 06.71 V 703
2023-11-07 04:36:59 C 05 31 46.829 -02 53 24.90 V W68
2023-11-07 04:41:33 C 05 31 46.661 -02 53 35.88 V W68
2023-11-07 05:32:41 C 05 31 44.762 -02 55 38.64 V W68
2023-11-07 10:28:32 C 05 31 34.270 -03 07 52.93 V 703
2023-11-07 10:36:38 C 05 31 33.967 -03 08 12.62 V 703
2023-11-07 10:44:44 C 05 31 33.640 -03 08 32.06 V 703
2023-11-07 10:52:52 C 05 31 33.215 -03 08 50.64 V 703
2023-11-08 10:13:04 C 05 30 44.532 -04 05 27.74 V G96
2023-11-08 10:20:31 C 05 30 44.212 -04 05 45.92 V G96
2023-11-08 10:27:59 C 05 30 43.895 -04 06 04.28 V G96
2023-11-08 10:35:26 C 05 30 43.585 -04 06 22.43 V G96
2023-11-08 12:59:23 C 05 30 38.472 -04 12 10.23 X F52
2023-11-08 13:16:17 C 05 30 37.744 -04 12 51.59 X F52
2023-11-08 13:33:13 C 05 30 37.009 -04 13 32.94 X F52
2023-11-08 13:50:07 C 05 30 36.282 -04 14 14.25 X F52
2023-11-09 10:59:00 C 05 29 47.069 -05 06 22.28 V 703
2023-11-09 11:06:35 C 05 29 46.734 -05 06 40.93 V 703
2023-11-09 11:14:10 C 05 29 46.370 -05 06 59.58 V 703
2023-11-09 11:21:45 C 05 29 46.036 -05 07 18.59 V 703
2023-11-10 10:27:49 C 05 28 48.025 -06 04 52.10 V 703
2023-11-10 10:35:43 C 05 28 47.662 -06 05 11.47 V 703
2023-11-10 10:43:37 C 05 28 47.244 -06 05 31.67 V 703
2023-11-10 10:51:31 C 05 28 46.866 -06 05 51.29 V 703
2023-11-12 01:37:58 C 05 26 58.373 -07 43 28.42 V M22
2023-11-12 01:50:31 C 05 26 57.679 -07 44 00.53 V M22
2023-11-12 02:05:06 C 05 26 56.878 -07 44 37.46 V M22
2023-11-12 02:09:41 C 05 26 56.621 -07 44 49.27 V M22
2023-11-13 05:51:37 C 05 25 31.490 -08 55 48.18 V W68
2023-11-13 05:54:13 C 05 25 31.346 -08 55 54.84 V W68
2023-11-13 05:58:47 C 05 25 31.056 -08 56 06.54 V W68
2023-11-13 06:33:05 C 05 25 29.018 -08 57 34.88 V W68
2023-11-13 08:37:04 C 05 25 21.607 -09 02 54.06 V W68