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
2025-10-20 06:04:53 C 22 32 14.788 +11 53 29.84 X F52
2025-10-20 07:59:08 C 22 32 17.285 +11 49 33.28 V T08
2025-10-20 08:03:04 C 22 32 17.388 +11 49 24.96 V T08
2025-10-20 08:11:00 C 22 32 17.556 +11 49 08.47 V T08
2025-10-20 08:26:52 C 22 32 17.930 +11 48 35.53 V T08
2025-10-20 20:46:45 B 22 32 39.667 +11 23 09.71 X J51
2025-10-20 20:55:33 B 22 32 39.895 +11 22 51.38 X J51
2025-10-20 21:04:21 B 22 32 40.138 +11 22 33.13 X J51
2025-10-20 21:13:43 C 22 32 40.370 +11 22 14.63 V R17
2025-10-20 21:39:34 C 22 32 40.975 +11 21 21.89 V R17
2025-10-20 21:59:03 C 22 32 41.446 +11 20 42.00 V R17
2025-10-20 22:18:33 C 22 32 41.899 +11 20 02.22 V R17
2025-10-21 00:35:16 C 22 32 46.318 +11 15 42.91 V W68
2025-10-21 00:37:55 C 22 32 46.368 +11 15 37.84 V W68
2025-10-21 01:09:01 C 22 32 47.105 +11 14 34.33 V W68
2025-10-21 01:13:35 C 22 32 47.220 +11 14 25.01 V W68
2025-10-21 19:18:57 B 22 33 20.18 +10 37 37.8 V R53
2025-10-21 19:22:34 B 22 33 20.26 +10 37 30.8 V R53
2025-10-21 19:25:56 B 22 33 20.36 +10 37 24.2 V R53
2025-10-21 19:40:05 C 22 33 20.244 +10 37 18.62 V M22
2025-10-21 19:52:00 C 22 33 20.554 +10 36 54.97 V M22
2025-10-21 19:55:55 C 22 33 20.650 +10 36 47.12 V M22
2025-10-21 20:14:30 C 22 33 21.144 +10 36 09.94 V M22
2025-10-22 21:05:53 B 22 34 08.962 +09 47 06.40 X J51
2025-10-22 21:16:29 B 22 34 09.238 +09 46 46.38 X J51
2025-10-22 21:31:02 B 22 34 09.626 +09 46 18.12 X J51
2025-10-22 22:34:33 B 22 34 11.19 +09 44 12.8 V R53
2025-10-22 22:38:10 B 22 34 11.32 +09 44 05.4 V R53
2025-10-22 22:41:32 B 22 34 11.41 +09 43 59.1 V R53
2025-10-23 00:37:54 B 22 34 15.45 +09 40 30.4 X X76
2025-10-23 00:41:37 B 22 34 15.56 +09 40 23.3 X X76
2025-10-23 00:44:59 B 22 34 15.70 +09 40 16.7 X X76
2025-10-23 22:18:42 C 22 34 59.419 +08 59 09.20 V R17
2025-10-23 22:38:17 C 22 35 00.002 +08 58 32.56 V R17
2025-10-23 22:57:51 C 22 35 00.588 +08 57 55.91 V R17
2025-10-23 23:23:14 C 22 35 01.356 +08 57 08.32 V R17
2025-10-24 04:22:12 C 22 35 12.102 +08 47 49.78 V 703
2025-10-24 04:25:28 C 22 35 12.224 +08 47 43.69 V 703
2025-10-24 04:28:43 C 22 35 12.311 +08 47 37.32 V 703
2025-10-24 04:31:58 C 22 35 12.422 +08 47 32.17 V 703
2025-10-24 19:54:38 C 22 35 45.211 +08 19 34.50 V M22
2025-10-24 19:59:53 C 22 35 45.389 +08 19 24.64 V M22
2025-10-24 20:08:22 C 22 35 45.641 +08 19 09.16 V M22
2025-10-24 20:28:46 C 22 35 46.296 +08 18 31.82 V M22
2025-10-25 04:18:26 C 22 36 03.636 +08 04 01.24 V 703
2025-10-25 04:25:03 C 22 36 03.856 +08 03 49.90 V 703
2025-10-25 04:28:22 C 22 36 03.978 +08 03 42.77 V 703
2025-10-26 04:08:06 C 22 36 57.391 +07 21 43.49 V 703
2025-10-26 04:11:23 C 22 36 57.442 +07 21 37.51 V 703
2025-10-26 04:14:41 C 22 36 57.586 +07 21 31.97 V 703