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
2024-10-29 02:49:43 B 01 56 24.79 +08 45 42.1 Z X33
2024-10-29 03:50:51 C 01 56 19.277 +08 43 02.24 V V57
2024-10-29 03:51:52 C 01 56 19.169 +08 42 59.54 V V57
2024-10-29 03:52:52 C 01 56 19.046 +08 42 57.42 V V57
2024-10-29 06:14:19 C 01 56 04.506 +08 37 22.58 V 703
2024-10-29 06:17:36 C 01 56 04.168 +08 37 14.74 V 703
2024-10-29 06:20:54 C 01 56 03.822 +08 37 06.96 V 703
2024-10-29 06:24:11 C 01 56 03.476 +08 36 59.08 V 703
2024-10-29 11:51:02 C 01 55 32.23 +08 24 04.6 V D29
2024-10-29 12:11:24 C 01 55 30.14 +08 23 16.7 V D29
2024-10-29 12:31:45 C 01 55 28.06 +08 22 28.8 V D29
2024-10-29 13:31:23 C 01 55 19.927 +08 20 12.08 V T05
2024-10-29 13:35:57 C 01 55 19.452 +08 20 01.25 V T05
2024-10-29 13:43:47 C 01 55 18.653 +08 19 42.78 V T05
2024-10-29 14:15:56 C 01 55 15.384 +08 18 26.24 V T05
2024-10-29 22:05:30 B 01 54 30.900 +07 59 49.70 Z K74
2024-10-29 22:08:32 B 01 54 30.602 +07 59 42.50 Z K74
2024-10-29 22:11:33 B 01 54 30.302 +07 59 35.70 Z K74
2024-10-30 01:26:49 B 01 54 11.84 +07 52 15.3 Z X33
2024-10-30 01:30:23 B 01 54 11.50 +07 52 07.9 Z X33
2024-10-30 01:33:57 B 01 54 11.03 +07 52 01.3 Z X33
2024-10-30 06:55:04 C 01 53 39.005 +07 39 09.97 V G96
2024-10-30 07:09:57 C 01 53 37.460 +07 38 34.87 V G96
2024-10-30 07:17:24 C 01 53 36.676 +07 38 17.66 V G96
2024-10-30 13:37:00 C 01 53 00.833 +07 23 49.06 V P07
2024-10-30 15:40:24 C 01 52 48.096 +07 19 00.88 V P07
2024-10-30 17:16:19 C 01 52 38.208 +07 15 16.24 V P07
2024-10-30 17:58:57 C 01 52 33.838 +07 13 36.19 V P07
2024-10-30 21:20:26 C 01 52 15.68 +07 05 19.3 V G17
2024-10-30 21:29:01 C 01 52 14.78 +07 04 59.5 V G17
2024-10-30 21:37:37 C 01 52 13.92 +07 04 39.6 V G17
2024-10-30 22:35:58 C 01 52 07.75 +07 02 22.0 q L04
2024-10-30 22:41:28 C 01 52 07.19 +07 02 09.2 q L04
2024-10-31 06:27:22 C 01 51 22.849 +06 44 08.99 V 703
2024-10-31 06:30:41 C 01 51 22.504 +06 44 01.39 V 703
2024-10-31 06:34:00 C 01 51 22.169 +06 43 53.62 V 703
2024-10-31 06:37:19 C 01 51 21.834 +06 43 45.88 V 703
2024-10-31 10:03:43 C 01 51 01.918 +06 35 51.68 V T08
2024-10-31 10:08:23 C 01 51 01.445 +06 35 40.78 V T08
2024-10-31 10:16:15 C 01 51 00.643 +06 35 22.60 V T08
2024-10-31 10:21:34 C 01 51 00.106 +06 35 10.18 V T08
2024-10-31 10:26:13 C 01 50 59.630 +06 34 59.34 V T08
2024-10-31 10:32:12 C 01 50 59.002 +06 34 45.52 V T08
2024-10-31 10:34:52 C 01 50 58.752 +06 34 39.36 V T08
2024-10-31 10:49:50 C 01 50 57.221 +06 34 04.37 V T08
2024-10-31 16:30:43 C 01 50 24.900 +06 21 11.74 V P07
2024-10-31 17:23:39 C 01 50 19.558 +06 19 09.34 V P07
2024-10-31 17:42:01 C 01 50 17.734 +06 18 26.10 V P07
2024-10-31 17:43:14 C 01 50 17.587 +06 18 24.01 V P07
2024-10-31 18:03:54 C 01 50 15.547 +06 17 35.70 V P07