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
2025-10-26 04:17:58 C 22 36 57.690 +07 21 26.50 V 703
2025-10-26 11:41:13 C 22 37 15.298 +07 08 52.30 V P07
2025-10-26 12:13:50 C 22 37 16.426 +07 07 56.17 V P07
2025-10-26 12:45:09 C 22 37 17.448 +07 07 02.10 V P07
2025-10-26 13:13:49 C 22 37 18.442 +07 06 12.42 V P07
2025-10-26 21:25:06 B 22 37 37.613 +06 51 49.64 V R61
2025-10-26 21:31:20 B 22 37 37.836 +06 51 39.06 V R61
2025-10-26 21:36:38 B 22 37 38.035 +06 51 29.84 V R61
2025-10-27 19:46:29 C 22 38 31.649 +06 14 35.12 V M22
2025-10-27 19:50:24 C 22 38 31.788 +06 14 28.50 V M22
2025-10-27 19:59:31 C 22 38 32.146 +06 14 13.70 V M22
2025-10-27 20:16:29 C 22 38 32.755 +06 13 45.34 V M22
2025-10-28 02:28:57 C 22 38 48.804 +06 03 11.66 V 703
2025-10-28 02:32:17 C 22 38 48.937 +06 03 06.66 V 703
2025-10-28 02:35:36 C 22 38 49.038 +06 03 01.15 V 703
2025-10-28 02:38:56 C 22 38 49.139 +06 02 55.14 V 703
2025-10-28 21:12:02 C 22 39 35.455 +05 32 47.18 Z C23
2025-10-28 21:13:45 C 22 39 35.551 +05 32 44.45 Z C23
2025-10-28 21:45:57 C 22 39 36.792 +05 31 52.82 Z C23
2025-10-29 02:47:38 C 22 39 50.256 +05 23 57.26 V G96
2025-10-29 02:55:57 C 22 39 50.576 +05 23 44.09 V G96
2025-10-29 03:04:16 C 22 39 50.897 +05 23 30.91 V G96
2025-10-29 03:12:35 C 22 39 51.217 +05 23 17.74 V G96
2025-10-30 02:44:08 C 22 40 53.000 +04 46 36.12 V 703
2025-10-30 02:47:29 C 22 40 53.137 +04 46 31.08 V 703
2025-10-30 02:50:50 C 22 40 53.310 +04 46 25.57 V 703
2025-10-30 02:54:11 C 22 40 53.414 +04 46 20.68 V 703
2025-11-03 15:56:08 C 22 46 03.485 +02 11 49.81 W O18
2025-11-03 17:20:12 C 22 46 07.500 +02 10 00.18 W O18
2025-11-03 19:37:18 B 22 46 15.247 +02 07 02.39 X R63
2025-11-03 20:10:14 C 22 46 16.58 +02 06 18.5 X G17
2025-11-03 20:14:17 B 22 46 16.978 +02 06 14.94 X R63
2025-11-03 20:20:58 C 22 46 17.12 +02 06 04.5 X G17
2025-11-03 20:31:43 C 22 46 17.60 +02 05 50.7 X G17
2025-11-03 20:49:24 B 22 46 18.619 +02 05 29.62 X R63
2025-11-04 15:12:38 C 22 47 14.834 +01 42 01.59 W O18
2025-11-04 16:05:33 C 22 47 17.383 +01 40 55.23 W O18
2025-11-06 13:27:49 C 22 49 41.009 +00 46 12.50 V P07
2025-11-06 14:15:27 C 22 49 43.370 +00 45 16.60 V P07
2025-11-06 14:48:27 C 22 49 44.976 +00 44 36.71 V P07
2025-11-06 14:51:30 C 22 49 45.130 +00 44 34.51 V P07
2025-11-06 15:06:25 C 22 49 45.943 +00 44 16.66 V P07
2025-11-06 15:09:11 C 22 49 46.102 +00 44 14.32 V P07
2025-11-06 15:36:08 C 22 49 47.434 +00 43 42.49 V P07
2025-11-06 16:16:10 C 22 49 49.517 +00 42 56.16 V P07
2025-11-07 07:50:16 C 22 50 40.594 +00 24 51.70 V T08
2025-11-07 07:55:33 C 22 50 40.838 +00 24 45.32 V T08
2025-11-07 08:06:20 C 22 50 41.410 +00 24 33.37 V T08
2025-11-07 08:10:56 C 22 50 41.635 +00 24 27.58 V T08
2025-11-08 01:46:35 C 22 51 39.835 +00 05 01.57 V W68