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
2024-12-14 20:57:21 C 01 14 22.260 -14 52 40.76 V M22
2024-12-14 21:34:10 C 01 14 23.074 -14 52 49.44 V M22
2024-12-17 03:04:57 C 01 15 42.202 -15 05 14.17 V W68
2024-12-17 03:07:01 C 01 15 42.367 -15 05 14.71 V W68
2024-12-17 03:14:49 C 01 15 42.456 -15 05 16.12 V W68
2024-12-17 03:22:19 C 01 15 42.674 -15 05 17.74 V W68
2024-12-17 03:30:07 C 01 15 42.811 -15 05 18.96 V W68
2024-12-19 01:40:14 C 01 17 01.586 -15 13 46.63 V W68
2024-12-19 01:44:49 C 01 17 01.714 -15 13 46.99 V W68
2024-12-19 01:54:43 C 01 17 01.980 -15 13 48.14 V W68
2024-12-19 02:26:59 C 01 17 02.856 -15 13 53.40 V W68
2024-12-20 07:37:25 C 01 17 57.192 -15 18 24.19 V T05
2024-12-20 07:41:58 C 01 17 57.331 -15 18 24.23 V T05
2024-12-20 07:50:32 C 01 17 57.569 -15 18 25.38 V T05
2024-12-20 08:09:37 C 01 17 58.147 -15 18 27.07 V T05
2024-12-21 02:16:59 C 01 18 33.670 -15 20 33.65 V W68
2024-12-21 02:21:40 C 01 18 33.845 -15 20 34.15 V W68
2024-12-21 02:29:36 C 01 18 34.073 -15 20 35.20 V W68
2024-12-21 02:56:00 C 01 18 34.891 -15 20 37.79 V W68
2024-12-22 06:42:06 C 01 19 32.227 -15 23 47.54 V T08
2024-12-22 06:46:44 C 01 19 32.362 -15 23 48.77 V T08
2024-12-22 07:18:20 C 01 19 33.360 -15 23 51.18 V T08
2024-12-22 07:28:13 C 01 19 33.696 -15 23 52.33 V T08
2024-12-23 00:57:32 C 01 20 11.359 -15 25 12.86 V W68
2024-12-23 01:03:29 C 01 20 11.551 -15 25 13.01 V W68
2024-12-23 01:12:00 C 01 20 11.815 -15 25 13.87 V W68
2024-12-23 01:32:18 C 01 20 12.514 -15 25 15.56 V W68
2024-12-24 18:59:25 C 01 21 46.157 -15 27 54.94 V M22
2024-12-24 19:04:38 C 01 21 46.387 -15 27 55.12 V M22
2024-12-24 19:12:28 C 01 21 46.610 -15 27 56.02 V M22
2024-12-24 19:33:21 C 01 21 47.340 -15 27 56.56 V M22
2024-12-26 02:23:09 C 01 23 00.946 -15 29 05.46 V W68
2024-12-26 02:27:20 C 01 23 01.121 -15 29 05.46 V W68
2024-12-26 02:34:53 C 01 23 01.406 -15 29 05.46 V W68
2024-12-26 02:49:03 C 01 23 01.956 -15 29 06.11 V W68
2024-12-26 19:52:07 C 01 23 44.386 -15 29 26.70 V M22
2024-12-26 19:56:43 C 01 23 44.542 -15 29 26.16 V M22
2024-12-26 20:05:26 C 01 23 44.870 -15 29 25.98 V M22
2024-12-26 20:20:12 C 01 23 45.413 -15 29 26.59 V M22
2024-12-27 19:52:54 C 01 24 45.590 -15 29 34.51 V M22
2024-12-27 19:57:31 C 01 24 45.778 -15 29 34.94 V M22
2024-12-27 20:23:44 C 01 24 46.882 -15 29 34.26 V M22
2024-12-27 20:47:57 C 01 24 47.839 -15 29 33.07 V M22
2024-12-28 02:06:15 C 01 25 02.291 -15 29 47.54 V G96
2024-12-28 02:13:41 C 01 25 02.600 -15 29 47.58 V G96
2024-12-28 02:21:06 C 01 25 02.896 -15 29 47.54 V G96
2024-12-28 02:28:32 C 01 25 03.191 -15 29 47.58 V G96
2024-12-29 01:44:31 C 01 26 04.505 -15 29 14.21 V W68
2024-12-29 01:49:07 C 01 26 04.745 -15 29 13.27 V W68
2024-12-29 01:57:07 C 01 26 05.083 -15 29 13.92 V W68