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
2025-10-12 08:54:11 C 22 28 33.634 +19 06 00.97 V T05
2025-10-12 09:08:26 C 22 28 33.689 +19 05 25.48 V T05
2025-10-12 19:23:19 B 22 28 41.995 +18 40 03.14 X J51
2025-10-12 19:35:29 B 22 28 42.108 +18 39 32.98 X J51
2025-10-12 19:48:43 B 22 28 42.216 +18 39 00.76 X J51
2025-10-12 19:49:54 B 22 28 41.76 +18 38 52.9 X R70
2025-10-12 19:56:53 B 22 28 41.611 +18 38 36.24 V 160
2025-10-12 19:57:52 B 22 28 41.83 +18 38 33.4 X R70
2025-10-12 20:00:40 B 22 28 41.640 +18 38 26.88 V 160
2025-10-12 20:04:33 B 22 28 41.662 +18 38 17.23 V 160
2025-10-12 20:05:48 B 22 28 41.89 +18 38 13.9 X R70
2025-10-12 20:10:21 C 22 28 41.67 +18 38 03.3 V G17
2025-10-12 20:17:53 C 22 28 41.71 +18 37 44.8 V G17
2025-10-12 20:25:25 C 22 28 41.80 +18 37 26.5 V G17
2025-10-12 23:24:21 C 22 28 43.17 +18 30 05.5 V R85
2025-10-12 23:32:28 C 22 28 43.24 +18 29 45.5 V R85
2025-10-12 23:40:34 C 22 28 43.29 +18 29 25.6 V R85
2025-10-13 08:37:00 C 22 28 50.354 +18 07 44.72 V T05
2025-10-13 08:41:05 C 22 28 50.386 +18 07 34.72 V T05
2025-10-13 08:49:05 C 22 28 50.438 +18 07 15.17 V T05
2025-10-13 09:03:25 C 22 28 50.542 +18 06 40.14 V T05
2025-10-13 20:35:16 B 22 29 00.35 +17 38 35.8 V R99
2025-10-13 20:40:38 B 22 29 00.40 +17 38 22.8 V R99
2025-10-13 20:41:37 B 22 29 00.64 +17 38 20.2 X R70
2025-10-13 20:45:39 B 22 29 00.45 +17 38 10.5 V R99
2025-10-13 20:49:03 B 22 29 00.70 +17 38 02.3 X R70
2025-10-13 20:56:29 B 22 29 00.77 +17 37 44.4 X R70
2025-10-13 21:04:53 B 22 29 01.190 +17 37 29.57 X J51
2025-10-13 21:17:27 B 22 29 01.318 +17 36 59.51 X J51
2025-10-13 21:25:37 B 22 29 01.404 +17 36 39.85 X J51
2025-10-13 22:32:21 C 22 29 01.944 +17 33 59.40 V R17
2025-10-13 22:51:53 C 22 29 02.110 +17 33 12.13 V R17
2025-10-13 23:17:09 C 22 29 02.323 +17 32 11.26 V R17
2025-10-13 23:36:41 C 22 29 02.496 +17 31 24.17 V R17
2025-10-15 01:58:59 C 22 29 28.403 +16 28 37.45 V G96
2025-10-15 02:07:08 C 22 29 28.504 +16 28 18.44 V G96
2025-10-15 02:15:17 C 22 29 28.604 +16 27 59.40 V G96
2025-10-15 02:23:26 C 22 29 28.698 +16 27 40.32 V G96
2025-10-15 19:25:49 C 22 29 46.178 +15 48 17.50 V M22
2025-10-15 19:29:43 C 22 29 46.205 +15 48 08.42 V M22
2025-10-15 19:42:29 C 22 29 46.375 +15 47 38.80 V M22
2025-10-15 19:56:52 C 22 29 46.565 +15 47 05.35 V M22
2025-10-16 01:07:21 B 22 29 52.848 +15 34 43.07 Z W36
2025-10-16 01:09:47 B 22 29 52.872 +15 34 37.31 Z W36
2025-10-16 01:12:00 B 22 29 52.894 +15 34 32.12 Z W36
2025-10-16 08:20:13 C 22 30 00.473 +15 18 16.99 V T08
2025-10-16 08:25:00 C 22 30 00.535 +15 18 06.19 V T08
2025-10-16 08:49:02 C 22 30 00.886 +15 17 10.79 V T08
2025-10-16 20:26:38 B 22 30 15.454 +14 50 35.84 V 160
2025-10-16 20:29:05 B 22 30 15.492 +14 50 30.23 V 160