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
2024-11-01 03:48:18 C 01 49 21.290 +05 55 12.07 V W68
2024-11-01 03:52:53 C 01 49 20.832 +05 55 01.31 V W68
2024-11-01 04:36:15 C 01 49 16.488 +05 53 21.70 V W68
2024-11-01 04:45:24 C 01 49 15.586 +05 53 00.78 V W68
2024-11-01 19:00:38 C 01 47 56.77 +05 19 51.6 X G02
2024-11-01 19:07:58 C 01 47 56.07 +05 19 34.8 X G02
2024-11-01 19:15:02 C 01 47 55.39 +05 19 18.8 X G02
2024-11-01 20:26:41 B 01 47 48.74 +05 16 37.3 X K19
2024-11-01 20:31:55 B 01 47 48.23 +05 16 25.5 X K19
2024-11-01 20:37:15 B 01 47 47.72 +05 16 13.2 X K19
2024-11-02 10:06:55 C 01 46 32.297 +04 45 46.15 V T05
2024-11-02 10:11:29 C 01 46 31.850 +04 45 35.96 V T05
2024-11-02 10:19:18 C 01 46 31.085 +04 45 18.22 V T05
2024-11-02 11:08:26 C 01 46 26.287 +04 43 27.19 V T05
2024-11-02 19:16:02 C 01 45 42.98 +04 24 57.2 V M31
2024-11-02 19:17:06 C 01 45 42.85 +04 24 54.8 V M31
2024-11-02 19:18:10 C 01 45 42.78 +04 24 52.4 V M31
2024-11-02 19:19:16 C 01 45 42.68 +04 24 50.0 V M31
2024-11-02 19:20:20 C 01 45 42.57 +04 24 47.4 V M31
2024-11-02 19:21:24 C 01 45 42.47 +04 24 45.0 V M31
2024-11-02 19:22:28 C 01 45 42.37 +04 24 42.7 V M31
2024-11-02 19:23:33 C 01 45 42.27 +04 24 40.2 V M31
2024-11-02 19:24:37 C 01 45 42.19 +04 24 37.8 V M31
2024-11-02 19:25:40 C 01 45 42.07 +04 24 35.4 V M31
2024-11-02 19:26:45 C 01 45 41.97 +04 24 33.1 V M31
2024-11-02 20:46:08 B 01 45 34.819 +04 21 37.22 V L65
2024-11-02 20:49:48 B 01 45 34.464 +04 21 28.94 V L65
2024-11-02 20:53:28 B 01 45 34.126 +04 21 20.70 V L65
2024-11-03 13:48:01 C 01 44 03.324 +03 44 10.72 V P07
2024-11-03 14:54:09 C 01 43 57.017 +03 41 44.59 V P07
2024-11-03 16:07:00 C 01 43 50.093 +03 39 03.71 V P07
2024-11-03 16:59:00 C 01 43 45.170 +03 37 08.22 V P07
2024-11-03 19:32:41 C 01 43 32.79 +03 31 02.5 X G02
2024-11-03 19:37:06 C 01 43 32.37 +03 30 52.7 X G02
2024-11-03 19:41:31 C 01 43 31.96 +03 30 43.2 X G02
2024-11-03 22:35:41 B 01 43 16.05 +03 24 19.3 Z M61
2024-11-03 22:56:56 B 01 43 14.09 +03 23 32.6 Z M61
2024-11-03 23:18:09 B 01 43 12.14 +03 22 46.0 Z M61
2024-11-04 09:19:59 C 01 42 19.678 +03 01 01.06 V T08
2024-11-04 09:24:39 C 01 42 19.246 +03 00 50.94 V T08
2024-11-04 09:33:25 C 01 42 18.432 +03 00 31.75 V T08
2024-11-04 10:24:39 C 01 42 13.639 +02 58 40.26 V T08
2024-11-04 18:56:55 C 01 41 30.49 +02 40 00.2 q L04
2024-11-04 19:00:47 C 01 41 30.14 +02 39 52.0 q L04
2024-11-04 19:04:29 C 01 41 29.81 +02 39 44.0 q L04
2024-11-05 03:35:26 C 01 40 45.492 +02 21 54.65 V W68
2024-11-05 03:40:41 C 01 40 45.012 +02 21 43.34 V W68
2024-11-05 03:49:52 C 01 40 44.177 +02 21 23.65 V W68
2024-11-05 19:16:50 C 01 39 26.83 +01 48 02.1 X G02
2024-11-05 19:21:55 C 01 39 26.40 +01 47 51.4 X G02