2009 US87

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2396996124 ± 5.26e-07
Semi-major axis (a)1.6402057567 AU ± 1.26e-06
Inclination (i)0.53686550° ± 9.16e-06
Long. of Asc. Node (Ω)104.68372182° ± 9.24e-04
Arg. of Perihelion (ω)323.10678813° ± 1.96e-03
Mean Anomaly (M)217.66081285° ± 4.05e-03
Mean Motion (n)0.4692073196°/day ± 5.42e-07
Perihelion dist (q)1.24704907 AU ± 1.29e-06
Aphelion dist (Q)2.03336244 AU ± 1.79e-06
Orbital Period2.10062001 yr ± 2.43e-06
Physical Parameters
H (abs. magnitude)22.01
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.431″
Uncertainty1
Orbit TypeAmor
MOID0.259691 AU
Observations Used63
Oppositions1
Arc Total2009-2011
First Observation Used2009-10-23
Last Observation Used2011-09-18
Observations (65)
Date Type RA Dec Mag Band Observatory
2009-10-23 10:07:52 C 04 10 06.20 +19 05 16.4 r G96
2009-10-23 10:18:46 C 04 10 06.52 +19 05 17.0 r G96
2009-10-23 10:29:29 C 04 10 06.85 +19 05 17.8 r G96
2009-10-23 10:40:27 C 04 10 07.24 +19 05 18.9 r G96
2009-10-25 10:09:35 C 04 11 54.02 +19 09 08.4 o 691
2009-10-25 10:34:20 C 04 11 54.71 +19 09 09.7 o 691
2009-10-25 10:59:04 C 04 11 55.41 +19 09 11.1 o 691
2009-10-26 07:41:34 C 04 12 39.95 +19 10 44.5 o 291
2009-10-26 07:49:41 C 04 12 40.18 +19 10 45.4 o 291
2009-10-26 07:57:46 C 04 12 40.38 +19 10 46.1 o 291
2009-10-26 10:31:16 C 04 12 44.50 +19 10 57.5 o 291
2009-10-26 10:38:01 C 04 12 44.70 +19 10 57.8 o 291
2009-10-26 10:43:44 C 04 12 44.85 +19 10 57.7 o 291
2009-10-27 10:43:43 C 04 13 31.94 +19 12 39.5 o H01
2009-10-27 10:49:59 C 04 13 32.10 +19 12 39.8 o H01
2009-10-27 10:55:57 C 04 13 32.25 +19 12 40.0 o H01
2009-10-27 11:03:09 C 04 13 32.43 +19 12 40.4 o H01
2009-10-29 06:23:30 C 04 14 52.74 +19 15 32.6 o 291
2009-10-29 06:34:14 C 04 14 53.01 +19 15 33.9 o 291
2009-10-29 06:44:58 C 04 14 53.22 +19 15 34.5 o 291
2009-11-10 05:30:20 C 04 19 47.57 +19 29 03.9 o 691
2009-11-10 05:55:07 C 04 19 47.60 +19 29 04.9 o 691
2009-11-10 06:19:53 C 04 19 47.57 +19 29 06.1 o 691
2009-11-10 08:04:48 C 04 19 47.33 +19 29 12.4 c 926
2009-11-10 08:44:56 C 04 19 47.22 +19 29 14.5 c 926
2009-11-10 09:48:16 C 04 19 47.08 +19 29 14.9 c 926
2009-11-16 09:16:35 C 04 19 52.86 +19 33 43.8 r 448
2009-11-16 09:46:27 C 04 19 52.57 +19 33 43.9 r 448
2009-11-16 10:16:37 C 04 19 52.21 +19 33 42.8 r 448
2009-11-20 05:02:30 C 04 19 21.54 +19 36 26.8 o 691
2009-11-20 05:28:02 C 04 19 21.18 +19 36 28.3 o 691
2009-11-20 05:53:35 C 04 19 20.71 +19 36 30.4 o 691
2009-11-20 06:45:27 C 04 19 19.75 +19 36 32.4 r 448
2009-11-20 07:12:50 C 04 19 19.24 +19 36 34.0 r 448
2009-11-20 07:40:48 C 04 19 18.79 +19 36 34.2 r 448
2009-11-24 05:44:34 C 04 18 25.23 +19 39 39.5 o 691
2009-11-24 06:10:34 C 04 18 24.74 +19 39 40.3 o 691
2009-11-24 06:36:12 C 04 18 24.26 +19 39 41.4 o 691
2009-11-25 07:22:41 C 04 18 07.29 +19 40 35.8 r 448
2009-11-25 07:46:24 C 04 18 06.78 +19 40 36.2 r 448
2009-11-25 08:11:58 C 04 18 06.30 +19 40 37.6 r 448
2009-11-26 09:52:00 C 04 17 47.99 +19 41 34.5 r 448
2009-11-26 10:40:50 C 04 17 47.15 +19 41 33.6 r 448
2009-11-26 11:28:43 C 04 17 46.42 +19 41 33.9 r 448
2009-12-04 04:44:23 C 04 15 45.69 +19 50 36.0 o H21
2009-12-04 04:57:33 C 04 15 45.48 +19 50 36.7 o H21
2009-12-04 05:04:00 C 04 15 45.37 +19 50 37.0 o H21
2009-12-05 06:01:54 C 04 15 31.09 +19 52 08.8 o H21
2009-12-05 06:09:41 C 04 15 30.94 +19 52 09.6 o H21
2009-12-05 06:17:27 C 04 15 30.78 +19 52 10.4 o H21