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
2025-10-16 20:32:27 B 22 30 15.540 +14 50 22.67 V 160
2025-10-17 01:06:32 B 22 30 21.696 +14 40 05.09 Z W36
2025-10-17 01:08:58 B 22 30 21.725 +14 39 59.29 Z W36
2025-10-17 01:11:09 B 22 30 21.749 +14 39 54.22 Z W36
2025-10-17 02:07:35 B 22 30 22.466 +14 38 11.47 X X24
2025-10-17 02:21:44 B 22 30 22.692 +14 37 39.90 X X24
2025-10-17 02:34:50 B 22 30 22.942 +14 37 10.31 X X24
2025-10-17 04:04:35 C 22 30 25.240 +14 33 27.90 V 703
2025-10-17 04:07:57 C 22 30 25.279 +14 33 20.02 V 703
2025-10-17 04:11:19 C 22 30 25.312 +14 33 12.92 V 703
2025-10-17 04:14:40 C 22 30 25.384 +14 33 05.36 V 703
2025-10-17 19:06:27 B 22 30 45.343 +13 59 53.63 V 160
2025-10-17 19:09:18 B 22 30 45.398 +13 59 47.33 V 160
2025-10-17 19:12:08 B 22 30 45.454 +13 59 40.99 V 160
2025-10-17 22:08:49 B 22 30 48.814 +13 53 08.20 W R92
2025-10-17 22:19:56 B 22 30 49.010 +13 52 42.85 W R92
2025-10-17 22:31:22 B 22 30 49.241 +13 52 18.12 W R92
2025-10-18 04:33:43 C 22 30 58.061 +13 39 09.25 V 703
2025-10-18 04:37:04 C 22 30 58.194 +13 39 00.07 V 703
2025-10-18 04:40:25 C 22 30 58.252 +13 38 53.09 V 703
2025-10-18 04:43:46 C 22 30 58.255 +13 38 45.89 V 703
2025-10-18 17:58:57 B 22 31 18.137 +13 09 49.50 W R92
2025-10-18 18:05:12 B 22 31 18.250 +13 09 36.00 W R92
2025-10-18 18:11:05 B 22 31 18.384 +13 09 23.58 W R92
2025-10-18 19:27:54 C 22 31 19.805 +13 07 06.24 V M22
2025-10-18 19:31:49 C 22 31 19.896 +13 06 58.25 V M22
2025-10-18 19:38:59 C 22 31 20.028 +13 06 42.41 V M22
2025-10-18 19:55:32 C 22 31 20.354 +13 06 06.66 V M22
2025-10-19 04:25:41 C 22 31 33.323 +12 47 30.48 V 703
2025-10-19 04:28:56 C 22 31 33.388 +12 47 23.78 V 703
2025-10-19 04:32:12 C 22 31 33.463 +12 47 16.30 V 703
2025-10-19 04:35:27 C 22 31 33.535 +12 47 09.46 V 703
2025-10-19 11:40:36 C 22 31 45.142 +12 32 22.42 V P07
2025-10-19 12:46:50 C 22 31 46.526 +12 30 02.34 V P07
2025-10-19 13:23:54 C 22 31 47.294 +12 28 44.15 V P07
2025-10-19 13:51:11 C 22 31 47.846 +12 27 46.15 V P07
2025-10-19 14:13:18 C 22 31 48.302 +12 26 59.06 V P07
2025-10-19 21:14:38 C 22 32 00.113 +12 11 54.78 V R17
2025-10-19 21:40:26 C 22 32 00.677 +12 11 00.78 V R17
2025-10-19 21:59:57 C 22 32 01.097 +12 10 19.70 V R17
2025-10-19 22:19:27 C 22 32 01.529 +12 09 38.77 V R17
2025-10-20 04:06:09 C 22 32 11.141 +11 57 32.80 V 703
2025-10-20 04:09:30 C 22 32 11.231 +11 57 26.24 V 703
2025-10-20 04:16:12 C 22 32 11.386 +11 57 12.20 V 703
2025-10-20 04:16:56 C 22 32 11.382 +11 57 10.98 V 703
2025-10-20 04:20:15 C 22 32 11.447 +11 57 03.49 V 703
2025-10-20 04:23:34 C 22 32 11.540 +11 56 57.26 V 703
2025-10-20 04:26:54 C 22 32 11.616 +11 56 50.06 V 703
2025-10-20 05:33:05 C 22 32 14.088 +11 54 36.48 X F52
2025-10-20 05:48:56 C 22 32 14.435 +11 54 02.91 X F52