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
2024-11-26 06:37:01 C 01 13 29.399 -10 40 58.19 V 703
2024-11-26 06:40:16 C 01 13 29.320 -10 41 01.36 V 703
2024-11-26 07:35:37 C 01 13 28.651 -10 41 51.07 V T05
2024-11-26 07:40:13 C 01 13 28.538 -10 41 55.18 V T05
2024-11-26 07:56:15 C 01 13 28.123 -10 42 10.37 V T05
2024-11-26 08:04:44 C 01 13 27.883 -10 42 18.47 V T05
2024-11-29 02:32:01 C 01 12 17.105 -11 40 18.26 V W68
2024-11-29 02:37:14 C 01 12 17.016 -11 40 22.40 V W68
2024-11-29 02:45:10 C 01 12 16.865 -11 40 29.06 V W68
2024-11-29 03:10:08 C 01 12 16.416 -11 40 49.04 V W68
2024-11-30 19:53:00 C 01 11 48.593 -12 12 14.80 V M22
2024-11-30 19:58:14 C 01 11 48.545 -12 12 18.29 V M22
2024-11-30 20:07:33 C 01 11 48.418 -12 12 25.42 V M22
2024-11-30 20:23:12 C 01 11 48.216 -12 12 36.76 V M22
2024-12-02 04:16:57 C 01 11 34.220 -12 35 25.04 V G96
2024-12-02 04:25:07 C 01 11 34.134 -12 35 30.55 V G96
2024-12-02 04:33:17 C 01 11 34.055 -12 35 36.13 V G96
2024-12-03 02:13:21 C 01 11 28.128 -12 49 34.10 V W68
2024-12-03 02:17:58 C 01 11 28.054 -12 49 37.67 V W68
2024-12-03 02:26:25 C 01 11 28.020 -12 49 42.60 V W68
2024-12-03 03:03:08 C 01 11 27.739 -12 50 05.86 V W68
2024-12-04 19:22:58 C 01 11 25.358 -13 14 31.20 V M22
2024-12-04 19:27:30 C 01 11 25.322 -13 14 33.83 V M22
2024-12-04 19:37:18 C 01 11 25.289 -13 14 39.55 V M22
2024-12-06 01:47:09 C 01 11 29.741 -13 31 15.10 V W68
2024-12-06 01:51:42 C 01 11 29.753 -13 31 17.18 V W68
2024-12-06 02:00:12 C 01 11 29.722 -13 31 21.79 V W68
2024-12-06 02:20:32 C 01 11 29.724 -13 31 32.27 V W68
2024-12-06 19:38:44 C 01 11 34.951 -13 40 24.89 V M22
2024-12-06 19:43:17 C 01 11 34.963 -13 40 27.05 V M22
2024-12-06 20:19:55 C 01 11 35.050 -13 40 45.12 V M22
2024-12-06 20:27:50 C 01 11 35.038 -13 40 49.26 V M22
2024-12-07 19:39:41 C 01 11 44.851 -13 52 01.20 V M22
2024-12-07 19:44:19 C 01 11 44.878 -13 52 03.32 V M22
2024-12-07 20:05:26 C 01 11 44.947 -13 52 13.48 V M22
2024-12-07 20:29:48 C 01 11 45.074 -13 52 24.38 V M22
2024-12-08 19:19:11 C 01 11 57.895 -14 02 39.77 V M22
2024-12-08 19:24:24 C 01 11 57.953 -14 02 42.00 V M22
2024-12-08 19:32:58 C 01 11 57.984 -14 02 46.07 V M22
2024-12-08 19:50:36 C 01 11 58.087 -14 02 53.66 V M22
2024-12-10 20:24:17 C 01 12 34.270 -14 22 23.09 V M22
2024-12-10 20:42:41 C 01 12 34.543 -14 22 29.93 V M22
2024-12-10 20:50:04 C 01 12 34.567 -14 22 32.30 V M22
2024-12-10 21:11:11 C 01 12 34.786 -14 22 40.48 V M22
2024-12-14 02:49:21 C 01 13 58.577 -14 47 47.47 V W68
2024-12-14 02:54:36 C 01 13 58.663 -14 47 48.95 V W68
2024-12-14 03:04:01 C 01 13 58.860 -14 47 51.79 V W68
2024-12-14 03:23:59 C 01 13 59.227 -14 47 57.01 V W68
2024-12-14 20:44:03 C 01 14 22.068 -14 52 35.94 V M22
2024-12-14 20:48:05 C 01 14 22.188 -14 52 38.57 V M22