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
2024-10-14 08:04:54 C 02 32 05.446 +22 15 49.18 V 703
2024-10-14 08:08:09 C 02 32 05.219 +22 15 44.24 V 703
2024-10-15 11:51:41 C 02 29 26.520 +21 18 44.82 V T05
2024-10-15 11:52:20 C 02 29 26.479 +21 18 43.45 V T05
2024-10-15 11:56:15 C 02 29 26.076 +21 18 35.24 V T05
2024-10-15 11:56:54 C 02 29 26.016 +21 18 33.98 V T05
2024-10-15 12:04:04 C 02 29 25.229 +21 18 18.29 V T05
2024-10-15 12:04:43 C 02 29 25.205 +21 18 17.71 V T05
2024-10-15 12:19:24 C 02 29 23.683 +21 17 46.72 V T05
2024-10-15 12:20:42 C 02 29 23.566 +21 17 44.09 V T05
2024-10-16 03:28:47 C 02 27 56.959 +20 46 11.57 V W68
2024-10-16 03:31:26 C 02 27 56.678 +20 46 05.92 V W68
2024-10-16 03:36:01 C 02 27 56.215 +20 45 56.05 V W68
2024-10-16 03:43:53 C 02 27 55.387 +20 45 39.85 V W68
2024-10-20 11:56:15 C 02 17 29.410 +16 54 51.84 V T08
2024-10-20 12:00:57 C 02 17 28.908 +16 54 41.18 V T08
2024-10-20 12:09:34 C 02 17 27.972 +16 54 21.28 V T08
2024-10-20 12:53:46 C 02 17 23.186 +16 52 39.25 V T08
2024-10-21 09:13:35 C 02 15 18.706 +16 05 40.45 V 703
2024-10-21 09:17:26 C 02 15 18.292 +16 05 31.56 V 703
2024-10-21 09:21:18 C 02 15 17.878 +16 05 22.67 V 703
2024-10-21 09:25:13 C 02 15 17.446 +16 05 13.34 V 703
2024-10-22 06:12:12 C 02 13 10.709 +15 16 46.67 Z U76
2024-10-22 06:25:45 C 02 13 09.242 +15 16 14.99 Z U76
2024-10-22 06:37:59 C 02 13 07.918 +15 15 46.37 Z U76
2024-10-22 07:52:46 C 02 12 59.605 +15 12 52.74 V 703
2024-10-22 07:56:04 C 02 12 59.242 +15 12 44.78 V 703
2024-10-22 07:59:21 C 02 12 58.882 +15 12 37.01 V 703
2024-10-22 08:02:39 C 02 12 58.518 +15 12 29.34 V 703
2024-10-22 11:17:59 C 02 12 38.326 +15 04 56.28 V T05
2024-10-22 11:23:32 C 02 12 37.716 +15 04 43.25 V T05
2024-10-22 11:31:21 C 02 12 36.862 +15 04 24.92 V T05
2024-10-22 11:46:17 C 02 12 35.222 +15 03 49.72 V T05
2024-10-22 12:13:30 C 02 12 32.249 +15 02 45.51 X F52
2024-10-22 12:49:49 C 02 12 28.299 +15 01 19.93 X F52
2024-10-22 13:11:30 C 02 12 25.943 +15 00 28.65 X F52
2024-10-22 19:31:10 C 02 11 46.81 +14 45 30.8 V D29
2024-10-22 19:51:32 C 02 11 44.63 +14 44 42.5 V D29
2024-10-22 20:11:54 C 02 11 42.47 +14 43 54.2 V D29
2024-10-23 06:37:07 C 02 10 39.659 +14 19 22.87 V G96
2024-10-23 06:45:09 C 02 10 38.798 +14 19 04.04 V G96
2024-10-23 06:53:11 C 02 10 37.909 +14 18 44.93 V G96
2024-10-23 07:01:14 C 02 10 37.034 +14 18 26.03 V G96
2024-10-23 09:10:45 C 02 10 22.915 +14 13 19.49 V 703
2024-10-23 09:14:01 C 02 10 22.555 +14 13 11.89 V 703
2024-10-23 09:17:17 C 02 10 22.206 +14 13 04.19 V 703
2024-10-23 09:20:33 C 02 10 21.842 +14 12 56.48 V 703
2024-10-24 04:59:03 C 02 08 21.161 +13 26 49.13 V W68
2024-10-24 05:04:17 C 02 08 20.585 +13 26 36.71 V W68
2024-10-24 05:40:29 C 02 08 16.642 +13 25 10.45 V W68