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
2024-10-24 06:21:07 C 02 08 12.228 +13 23 33.76 V W68
2024-10-24 11:26:52 C 02 07 40.944 +13 11 07.30 V T08
2024-10-24 11:31:07 C 02 07 40.481 +13 10 57.14 V T08
2024-10-24 12:22:06 C 02 07 34.918 +13 08 55.28 V T08
2024-10-24 12:34:25 C 02 07 33.583 +13 08 25.98 V T08
2024-10-25 01:55:56 B 02 06 13.02 +12 36 46.3 Z X33
2024-10-25 01:59:00 B 02 06 12.64 +12 36 40.4 Z X33
2024-10-25 02:02:03 B 02 06 12.29 +12 36 32.8 Z X33
2024-10-25 03:01:21 C 02 06 06.614 +12 33 54.58 V V57
2024-10-25 03:02:20 C 02 06 06.528 +12 33 52.49 V V57
2024-10-25 03:03:22 C 02 06 06.406 +12 33 49.97 V V57
2024-10-25 05:59:42 C 02 05 47.390 +12 26 51.04 V V57
2024-10-25 06:00:44 C 02 05 47.285 +12 26 48.77 V V57
2024-10-25 06:01:43 C 02 05 47.160 +12 26 46.36 V V57
2024-10-25 09:19:42 C 02 05 27.091 +12 18 59.04 V T05
2024-10-25 09:22:19 C 02 05 26.798 +12 18 52.74 V T05
2024-10-25 09:26:17 C 02 05 26.374 +12 18 43.81 V T05
2024-10-25 09:28:00 C 02 05 26.189 +12 18 38.66 V T05
2024-10-25 09:30:37 C 02 05 25.901 +12 18 32.36 V T05
2024-10-25 09:53:35 C 02 05 23.398 +12 17 37.57 V T05
2024-10-25 10:34:19 C 02 05 18.950 +12 16 00.30 V T05
2024-10-25 14:13:39 C 02 04 57.23 +12 07 11.2 V D29
2024-10-25 14:34:01 C 02 04 55.01 +12 06 22.1 V D29
2024-10-25 14:54:23 C 02 04 52.83 +12 05 34.2 V D29
2024-10-25 21:36:58 C 02 04 11.597 +11 49 58.76 V M22
2024-10-25 21:39:35 C 02 04 11.314 +11 49 52.64 V M22
2024-10-25 21:44:10 C 02 04 10.819 +11 49 41.70 V M22
2024-10-25 21:53:20 C 02 04 09.826 +11 49 19.67 V M22
2024-10-25 21:57:18 C 02 04 09.410 +11 49 10.42 V M22
2024-10-25 21:57:56 C 02 04 09.331 +11 49 08.65 V M22
2024-10-25 22:27:19 C 02 04 06.151 +11 47 58.42 V M22
2024-10-25 22:47:58 C 02 04 03.910 +11 47 09.02 V M22
2024-10-26 02:09:42 B 02 03 44.563 +11 38 39.23 Z W05
2024-10-26 02:45:17 C 02 03 41.011 +11 37 14.84 V V57
2024-10-26 02:46:19 C 02 03 40.884 +11 37 12.14 V V57
2024-10-26 02:47:19 C 02 03 40.812 +11 37 10.09 V V57
2024-10-26 04:19:05 B 02 03 30.766 +11 33 31.68 Z W05
2024-10-26 06:03:48 C 02 03 19.735 +11 29 22.34 V V57
2024-10-26 06:04:48 C 02 03 19.661 +11 29 20.22 V V57
2024-10-26 06:05:49 C 02 03 19.510 +11 29 17.27 V V57
2024-10-26 06:17:59 B 02 03 17.921 +11 28 47.71 Z W05
2024-10-26 06:47:07 C 02 03 15.322 +11 27 38.41 V 703
2024-10-26 06:50:28 C 02 03 14.962 +11 27 30.35 V 703
2024-10-26 06:53:49 C 02 03 14.598 +11 27 22.46 V 703
2024-10-26 06:57:10 C 02 03 14.234 +11 27 14.47 V 703
2024-10-26 07:37:04 C 02 03 09.643 +11 25 39.07 V V57
2024-10-26 07:38:04 C 02 03 09.521 +11 25 36.73 V V57
2024-10-26 07:39:06 C 02 03 09.413 +11 25 34.32 V V57
2024-10-26 08:50:43 C 02 03 01.735 +11 22 42.38 V V57
2024-10-26 08:51:44 C 02 03 01.644 +11 22 40.26 V V57