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
2022-12-01 11:51:26 C 09 22 02.910 -29 06 45.43 V 703
2022-12-01 12:06:18 C 09 22 04.948 -29 07 21.79 V 703
2022-12-02 00:28:05 C 09 23 49.322 -29 37 06.82 V M22
2022-12-02 00:32:39 C 09 23 49.987 -29 37 18.01 V M22
2022-12-02 00:40:30 C 09 23 51.026 -29 37 37.49 V M22
2022-12-02 00:54:42 C 09 23 52.961 -29 38 12.34 V M22
2022-12-02 14:40:05 C 09 25 48.971 -30 11 58.05 U F52
2022-12-02 14:53:43 C 09 25 50.829 -30 12 31.31 U F52
2022-12-02 15:21:03 C 09 25 54.558 -30 13 37.97 U F52
2022-12-04 06:23:04 C 09 31 33.756 -31 48 37.62 V W68
2022-12-04 06:27:37 C 09 31 34.380 -31 48 48.74 V W68
2022-12-04 06:56:06 C 09 31 38.462 -31 49 59.16 V W68
2022-12-04 07:12:39 C 09 31 40.807 -31 50 40.02 V W68
2022-12-05 06:55:16 C 09 35 12.144 -32 48 37.37 V W68
2022-12-05 06:59:49 C 09 35 12.833 -32 48 48.82 V W68
2022-12-05 07:08:55 C 09 35 14.155 -32 49 11.39 V W68
2022-12-05 07:30:36 C 09 35 17.318 -32 50 04.67 V W68
2022-12-06 01:27:56 C 09 38 00.418 -33 33 59.26 V M22
2022-12-06 01:31:54 C 09 38 01.015 -33 34 09.05 V M22
2022-12-06 01:48:04 C 09 38 03.420 -33 34 48.68 V M22
2022-12-06 01:53:56 C 09 38 04.282 -33 35 03.05 V M22
2022-12-07 00:20:00 C 09 41 32.537 -34 29 52.76 V M22
2022-12-07 00:24:32 C 09 41 33.197 -34 30 03.85 V M22
2022-12-07 00:33:43 C 09 41 34.618 -34 30 26.96 V M22
2022-12-07 00:54:24 C 09 41 37.716 -34 31 17.65 V M22
2022-12-08 07:47:07 C 09 46 31.291 -35 46 44.58 V W68
2022-12-08 07:51:20 C 09 46 31.922 -35 46 55.13 V W68
2022-12-08 07:59:50 C 09 46 33.245 -35 47 15.90 V W68
2022-12-08 08:13:21 C 09 46 35.330 -35 47 49.09 V W68
2022-12-09 08:57:14 S 09 50 36.427 -36 47 57.30 L C51
2022-12-09 15:12:35 S 09 51 38.674 -37 03 10.80 L C51
2022-12-10 01:19:55 C 09 53 21.473 -37 27 54.00 V M22
2022-12-10 01:24:36 C 09 53 22.241 -37 28 05.38 V M22
2022-12-10 01:39:10 C 09 53 24.610 -37 28 41.27 V M22
2022-12-10 01:52:31 C 09 53 26.796 -37 29 13.67 V M22
2022-12-11 00:02:51 S 09 57 12.25 -38 22 52.1 L C51
2022-12-11 01:36:34 S 09 57 28.378 -38 26 38.15 L C51
2022-12-11 01:36:45 S 09 57 28.423 -38 26 38.11 L C51
2022-12-11 03:10:27 S 09 57 44.67 -38 30 25.5 L C51
2022-12-11 06:18:02 S 09 58 17.16 -38 37 58.8 L C51
2022-12-11 06:18:13 S 09 58 17.15 -38 37 59.4 L C51
2022-12-11 09:25:48 S 09 58 49.97 -38 45 31.1 L C51
2022-12-11 15:40:58 S 09 59 55.35 -39 00 38.5 L C51
2022-12-11 18:48:44 S 10 00 28.320 -39 08 11.29 L C51
2022-12-15 06:29:10 C 10 15 58.327 -42 27 56.48 V W68
2022-12-15 06:31:45 C 10 15 58.805 -42 28 02.28 V W68
2022-12-15 06:40:45 C 10 16 00.506 -42 28 24.42 V W68
2022-12-15 06:50:34 C 10 16 02.388 -42 28 47.39 V W68
2022-12-19 03:30:27 C 10 35 11.225 -46 02 32.17 V W68
2022-12-19 04:07:04 C 10 35 19.219 -46 03 56.81 V W68