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
2023-11-27 23:28:13 C 04 57 32.398 -24 03 32.54 V M22
2023-11-27 23:32:58 C 04 57 31.877 -24 03 43.74 V M22
2023-11-27 23:44:30 C 04 57 30.619 -24 04 11.42 V M22
2023-11-28 00:29:11 C 04 57 25.750 -24 05 58.27 V M22
2023-11-29 18:40:57 C 04 53 02.906 -25 45 20.52 X L68
2023-11-29 18:46:18 C 04 53 02.318 -25 45 32.90 X L68
2023-11-29 18:51:31 C 04 53 01.752 -25 45 45.18 X L68
2023-11-30 22:38:38 C 04 50 00.264 -26 49 17.08 V M22
2023-11-30 23:34:57 C 04 49 53.690 -26 51 23.76 V M22
2023-11-30 23:37:34 C 04 49 53.386 -26 51 29.77 V M22
2023-11-30 23:38:51 C 04 49 53.215 -26 51 32.76 V M22
2023-11-30 23:42:10 C 04 49 52.855 -26 51 40.00 V M22
2023-11-30 23:43:28 C 04 49 52.687 -26 51 42.98 V M22
2023-12-01 00:19:21 C 04 49 48.528 -26 53 03.19 V M22
2023-12-01 00:20:39 C 04 49 48.353 -26 53 06.14 V M22
2023-12-01 00:26:52 C 04 49 47.647 -26 53 19.86 V M22
2023-12-01 00:31:45 C 04 49 47.098 -26 53 30.84 V M22
2023-12-02 03:57:16 C 04 46 45.787 -27 54 19.15 V W68
2023-12-02 04:01:13 C 04 46 45.317 -27 54 27.83 V W68
2023-12-02 04:07:10 C 04 46 44.599 -27 54 40.86 V W68
2023-12-03 21:32:48 C 04 42 02.182 -29 22 57.29 V M22
2023-12-03 21:36:03 C 04 42 01.776 -29 23 04.06 V M22
2023-12-03 21:39:58 C 04 42 01.306 -29 23 12.26 V M22
2023-12-03 22:18:33 C 04 41 56.573 -29 24 32.62 V M22
2023-12-06 22:06:06 C 04 33 30.715 -31 46 35.80 V M22
2023-12-06 22:10:13 C 04 33 30.204 -31 46 43.57 V M22
2023-12-06 22:29:19 C 04 33 27.778 -31 47 19.21 V M22
2023-12-06 22:37:12 C 04 33 26.786 -31 47 34.08 V M22
2023-12-07 09:23:42 C 04 32 09.977 -32 07 57.94 X F52
2023-12-07 09:37:39 C 04 32 08.193 -32 08 23.76 X F52
2023-12-07 09:51:35 C 04 32 06.412 -32 08 49.45 X F52
2023-12-07 10:07:49 C 04 32 04.332 -32 09 19.48 X F52
2023-12-08 02:47:56 C 04 30 04.980 -32 39 19.48 V W68
2023-12-08 02:53:52 C 04 30 04.219 -32 39 30.24 V W68
2023-12-08 02:59:49 C 04 30 03.463 -32 39 40.97 V W68
2023-12-11 04:44:17 C 04 21 06.730 -34 44 05.24 V W68
2023-12-11 04:50:29 C 04 21 05.935 -34 44 14.93 V W68
2023-12-11 05:04:02 C 04 21 04.183 -34 44 36.10 V W68
2023-12-11 22:04:11 C 04 19 00.638 -35 10 59.02 V M22
2023-12-11 22:11:36 C 04 18 59.674 -35 11 10.18 V M22
2023-12-11 22:16:12 C 04 18 59.076 -35 11 17.56 V M22
2023-12-11 22:31:15 C 04 18 57.144 -35 11 40.24 V M22
2023-12-12 02:52:33 C 04 18 26.210 -35 18 17.93 V W68
2023-12-12 02:58:46 C 04 18 25.418 -35 18 27.43 V W68
2023-12-12 03:04:42 C 04 18 24.648 -35 18 36.36 V W68
2023-12-13 22:04:38 C 04 13 11.659 -36 20 53.92 V M22
2023-12-13 22:09:14 C 04 13 11.074 -36 21 00.18 V M22
2023-12-13 22:17:06 C 04 13 10.063 -36 21 11.05 V M22
2023-12-13 22:31:24 C 04 13 08.234 -36 21 30.60 V M22
2023-12-15 03:55:52 C 04 09 36.415 -37 01 00.84 V W68