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
2013-01-10 05:26:28 C 00 24 10.524 -04 56 46.75 L F51
2013-01-10 05:34:03 C 00 24 11.246 -04 56 45.14 L F51
2013-01-10 05:41:39 C 00 24 11.977 -04 56 43.50 L F51
2013-01-10 05:49:14 C 00 24 12.691 -04 56 41.93 L F51
2013-02-03 05:27:38 C 01 21 04.702 -02 19 59.54 L F51
2013-02-03 05:39:00 C 01 21 05.840 -02 19 55.84 L F51
2013-02-03 05:44:41 C 01 21 06.401 -02 19 54.15 L F51
2013-08-14 02:04:16 C 14 13 02.32 +22 16 56.2 u H21
2013-08-14 02:08:15 C 14 13 03.25 +22 16 54.8 u H21
2013-08-14 02:12:20 C 14 13 04.20 +22 16 53.9 u H21
2013-08-14 02:16:05 C 14 13 05.06 +22 16 52.5 u H21
2013-08-14 02:19:29 C 14 13 05.84 +22 16 51.4 u H21
2013-08-14 02:23:14 C 14 13 06.73 +22 16 50.5 u H21
2013-08-16 19:42:58 C 14 28 16.01 +21 52 54.1 q 160
2013-08-16 19:47:00 C 14 28 16.91 +21 52 52.3 q 160
2013-08-16 19:51:00 C 14 28 17.81 +21 52 51.0 q 160
2013-09-05 20:15:45 C 16 14 51.87 +16 34 17.6 o 046
2013-09-05 20:17:06 C 16 14 52.02 +16 34 15.9 o 046
2013-09-05 20:18:28 C 16 14 52.28 +16 34 14.8 o 046
2013-09-05 20:21:13 C 16 14 52.91 +16 34 12.8 o 046
2013-09-16 02:42:49 C 17 05 12.21 +12 44 21.7 q 703
2013-09-16 02:47:43 C 17 05 13.13 +12 44 16.9 q 703
2013-09-16 02:52:25 C 17 05 14.05 +12 44 11.5 q 703
2013-09-16 02:57:14 C 17 05 14.93 +12 44 07.0 q 703
2013-11-14 01:03:07 C 20 54 53.40 -04 04 02.8 u H21
2013-11-14 01:08:16 C 20 54 54.09 -04 04 04.3 u H21
2013-11-14 01:13:25 C 20 54 54.73 -04 04 05.2 u H21
2013-12-25 05:17:07 C 22 55 17.790 -04 37 13.56 L F51
2013-12-25 05:23:04 C 22 55 18.446 -04 37 12.69 L F51
2013-12-25 05:29:03 C 22 55 19.120 -04 37 11.65 L F51
2013-12-25 05:35:04 C 22 55 19.786 -04 37 10.71 L F51
2013-12-31 02:06:53 C 23 11 04.89 -04 11 48.5 q G96
2013-12-31 02:13:01 C 23 11 05.59 -04 11 47.1 q G96
2013-12-31 02:19:09 C 23 11 06.22 -04 11 46.1 q G96
2013-12-31 02:25:17 C 23 11 06.92 -04 11 44.7 q G96
2020-10-07 12:19:09 C 09 16 30.93 +00 39 45.9 U I41
2020-10-07 12:25:57 C 09 16 31.97 +00 39 38.6 U I41
2020-10-07 12:39:30 C 09 16 34.07 +00 39 24.6 U I41
2020-10-07 12:46:16 C 09 16 35.12 +00 39 17.0 U I41
2020-10-15 12:26:17 C 09 47 11.06 -02 49 02.0 U I41
2020-10-15 12:33:04 C 09 47 12.16 -02 49 09.5 U I41
2020-10-15 12:39:52 C 09 47 13.26 -02 49 17.0 U I41
2020-10-15 12:46:37 C 09 47 14.35 -02 49 24.7 U I41
2020-11-14 12:54:45 C 11 56 54.31 -16 02 31.1 U I41
2020-11-14 13:01:36 C 11 56 55.67 -16 02 38.2 U I41
2020-11-14 13:08:25 C 11 56 57.04 -16 02 44.9 U I41
2020-11-14 13:15:16 C 11 56 58.42 -16 02 51.9 U I41
2021-07-15 11:23:28 C 03 55 48.90 +22 22 06.6 U I41
2021-07-16 11:15:19 C 03 58 41.62 +22 22 10.3 U I41
2021-07-16 11:26:09 C 03 58 42.95 +22 22 10.0 U I41