375505 (2008 UN90)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1255612722 ± 1.42e-07
Semi-major axis (a)1.4044746835 AU ± 1.57e-09
Inclination (i)17.54502922° ± 1.58e-05
Long. of Asc. Node (Ω)33.49249037° ± 1.13e-05
Arg. of Perihelion (ω)313.21383525° ± 3.48e-05
Mean Anomaly (M)121.31072520° ± 3.10e-05
Mean Motion (n)0.5921631846°/day ± 9.93e-10
Perihelion dist (q)1.22812706 AU ± 2.00e-07
Aphelion dist (Q)1.58082231 AU ± 2.00e-07
Orbital Period1.66445046 yr ± 2.79e-09
Physical Parameters
H (abs. magnitude)20.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.651″
Uncertainty0
Orbit TypeAmor
MOID0.263862 AU
Observations Used419
Oppositions10
Arc Total1998-2023
First Observation Used1998-11-17
Last Observation Used2023-12-14
Observations (534)
Date Type RA Dec Mag Band Observatory
1998-11-17 02:48:32 C 23 31 13.745 -00 57 55.34 645
1998-11-17 02:49:44 C 23 31 13.781 -00 57 53.35 645
1998-11-17 02:53:18 C 23 31 13.896 -00 57 46.86 645
2008-10-27 04:33:30 C 00 03 26.85 -10 58 12.1 r 703
2008-10-27 04:45:50 C 00 03 26.17 -10 57 42.8 r 703
2008-10-27 04:58:03 C 00 03 25.41 -10 57 13.2 r 703
2008-10-27 05:10:19 C 00 03 24.66 -10 56 45.1 r 703
2008-10-27 07:03:43 C 00 03 18.03 -10 52 18.7 r 703
2008-10-27 07:06:11 C 00 03 17.85 -10 52 12.0 r 703
2008-10-27 07:08:38 C 00 03 17.71 -10 52 06.8 r 703
2008-10-27 07:11:04 C 00 03 17.56 -10 52 00.8 r 703
2008-10-27 11:42:11 C 00 03 04.40 -10 40 57.1 w E10
2008-10-27 11:43:56 C 00 03 04.30 -10 40 53.2 w E10
2008-10-27 11:46:15 C 00 03 04.17 -10 40 47.6 w E10
2008-10-27 11:47:53 C 00 03 04.07 -10 40 43.9 w E10
2008-10-27 12:02:51 C 00 03 03.61 -10 40 37.2 o 300
2008-10-27 12:05:52 C 00 03 03.48 -10 40 30.2 o 300
2008-10-27 12:11:51 C 00 03 03.07 -10 40 16.7 o 300
2008-10-27 12:14:52 C 00 03 02.91 -10 40 09.3 o 300
2008-10-27 19:04:03 C 00 02 42.74 -10 24 16.7 r J95
2008-10-27 19:28:36 C 00 02 41.36 -10 23 19.1 r J95
2008-10-28 03:34:22 C 00 02 17.28 -10 04 23.0 o 291
2008-10-28 03:40:01 C 00 02 16.95 -10 04 09.7 o 291
2008-10-28 03:45:25 C 00 02 16.66 -10 03 57.3 o 291
2008-10-28 04:02:49 C 00 02 15.87 -10 03 18.1 o 673
2008-10-28 04:23:09 C 00 02 14.76 -10 02 30.4 o 673
2008-10-28 04:39:59 C 00 02 13.85 -10 01 51.4 o 673
2008-10-28 05:02:40 C 00 02 12.59 -10 00 58.6 o 673
2008-10-28 05:16:05 C 00 02 11.53 -10 00 27.6 v H01
2008-10-28 05:18:16 C 00 02 11.42 -10 00 22.6 v H01
2008-10-28 05:21:28 C 00 02 11.24 -10 00 15.1 v H01
2008-10-28 05:25:55 C 00 02 11.00 -10 00 04.8 v H01
2008-10-29 00:52:27 C 00 01 17.37 -09 15 12.0 o H55
2008-10-29 00:58:57 C 00 01 16.97 -09 14 56.9 o H55
2008-10-29 01:02:40 C 00 01 16.82 -09 14 47.8 o H55
2008-10-29 01:05:43 C 00 01 16.62 -09 14 41.8 o H55
2008-10-30 03:28:18 C 00 00 07.68 -08 14 31.7 19.2 c 704
2008-10-30 03:45:22 C 00 00 06.96 -08 13 53.3 19.6 c 704
2008-10-30 04:02:28 C 00 00 06.06 -08 13 14.4 19.7 c 704
2008-10-30 04:19:35 C 00 00 05.30 -08 12 36.0 20.0 c 704
2008-10-31 01:12:19 C 23 59 16.37 -07 25 42.0 o H55
2008-10-31 01:14:57 C 23 59 16.24 -07 25 36.5 o H55
2008-10-31 01:17:45 C 23 59 16.01 -07 25 30.0 o H55
2008-10-31 01:20:15 C 23 59 15.96 -07 25 24.6 o H55
2008-10-31 01:22:59 C 23 59 15.85 -07 25 17.6 o H55
2008-10-31 01:25:41 C 23 59 15.73 -07 25 12.9 o H55
2008-11-01 00:54:31 C 23 58 25.05 -06 33 09.6 o H55
2008-11-01 00:57:07 C 23 58 24.91 -06 33 04.0 o H55
2008-11-01 00:59:43 C 23 58 24.84 -06 32 59.0 o H55
2008-11-01 01:02:34 C 23 58 24.65 -06 32 52.0 o H55