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
2025-09-11 10:43:59 C 22 55 15.898 +50 43 34.28 V T08
2025-09-11 10:47:58 C 22 55 15.516 +50 43 26.15 V T08
2025-09-11 10:51:16 C 22 55 15.206 +50 43 19.67 V T08
2025-09-11 10:51:56 C 22 55 15.149 +50 43 18.19 V T08
2025-09-11 11:43:36 C 22 55 10.207 +50 41 34.19 V T08
2025-09-11 12:25:37 C 22 55 06.230 +50 40 08.69 V T08
2025-09-12 01:16:00 B 22 54 04.06 +50 14 08.9 Z W37
2025-09-12 02:06:42 B 22 53 59.52 +50 12 28.6 Z W37
2025-09-12 02:56:49 B 22 53 54.92 +50 10 48.4 Z W37
2025-09-12 09:47:24 C 22 53 19.903 +49 57 00.83 V T08
2025-09-12 09:51:26 C 22 53 19.541 +49 56 52.80 V T08
2025-09-12 10:38:43 C 22 53 15.132 +49 55 15.53 V T08
2025-09-12 10:45:21 C 22 53 14.498 +49 55 01.42 V T08
2025-09-12 10:46:40 C 22 53 14.374 +49 54 58.86 V T08
2025-09-12 10:49:19 C 22 53 14.126 +49 54 53.57 V T08
2025-09-12 10:57:15 C 22 53 13.385 +49 54 37.22 V T08
2025-09-12 11:48:19 C 22 53 08.650 +49 52 50.38 V T08
2025-09-13 02:40:16 C 22 51 55.733 +49 21 54.07 V R17
2025-09-13 03:02:31 C 22 51 53.748 +49 21 06.44 V R17
2025-09-13 03:24:32 C 22 51 51.814 +49 20 19.10 V R17
2025-09-13 03:45:14 C 22 51 49.997 +49 19 34.68 V R17
2025-09-14 09:51:19 C 22 49 29.078 +48 15 16.67 V T05
2025-09-14 09:55:55 C 22 49 28.666 +48 15 06.44 V T05
2025-09-14 10:05:50 C 22 49 27.809 +48 14 44.77 V T05
2025-09-14 10:19:40 C 22 49 26.606 +48 14 14.32 V T05
2025-09-14 19:48:20 B 22 48 45.089 +47 53 12.84 V R61
2025-09-14 19:53:48 B 22 48 44.659 +47 53 00.96 V R61
2025-09-14 19:58:47 B 22 48 44.302 +47 52 49.91 V R61
2025-09-14 21:15:31 B 22 48 36.70 +47 50 03.0 X L76
2025-09-14 21:18:44 B 22 48 36.46 +47 49 55.7 X L76
2025-09-14 21:21:56 B 22 48 36.19 +47 49 48.9 X L76
2025-09-14 21:25:09 B 22 48 35.90 +47 49 41.5 X L76
2025-09-14 21:28:22 B 22 48 35.61 +47 49 34.4 X L76
2025-09-14 21:31:34 B 22 48 35.37 +47 49 27.2 X L76
2025-09-14 21:34:46 B 22 48 35.10 +47 49 20.0 X L76
2025-09-14 21:37:59 B 22 48 34.85 +47 49 12.8 X L76
2025-09-14 21:41:12 B 22 48 34.57 +47 49 06.0 X L76
2025-09-14 21:44:25 B 22 48 34.31 +47 48 58.8 X L76
2025-09-15 10:13:17 C 22 47 38.460 +47 21 21.56 V T08
2025-09-15 10:18:37 C 22 47 38.018 +47 21 09.54 V T08
2025-09-15 10:27:15 C 22 47 37.286 +47 20 50.03 V T08
2025-09-15 11:18:56 C 22 47 32.995 +47 18 52.56 V T08
2025-09-16 00:28:09 C 22 46 35.08 +46 48 50.6 X C40
2025-09-16 00:30:34 C 22 46 34.86 +46 48 45.0 X C40
2025-09-16 00:32:58 C 22 46 34.68 +46 48 39.3 X C40
2025-09-16 00:35:23 C 22 46 34.49 +46 48 33.8 X C40
2025-09-16 00:37:48 C 22 46 34.30 +46 48 28.1 X C40
2025-09-16 00:40:12 C 22 46 34.13 +46 48 22.6 X C40
2025-09-16 00:42:36 C 22 46 33.96 +46 48 17.0 X C40
2025-09-16 00:45:00 C 22 46 33.78 +46 48 11.6 X C40