364877 (2008 EM9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8524697214 ± 2.72e-08
Semi-major axis (a)1.9588357872 AU ± 8.65e-09
Inclination (i)9.43927817° ± 6.13e-06
Long. of Asc. Node (Ω)229.68324609° ± 3.04e-05
Arg. of Perihelion (ω)181.79289790° ± 3.11e-05
Mean Anomaly (M)185.09041969° ± 1.08e-05
Mean Motion (n)0.3595135235°/day ± 2.38e-09
Perihelion dist (q)0.28898759 AU ± 5.33e-08
Aphelion dist (Q)3.62868399 AU ± 5.56e-08
Orbital Period2.74155552 yr ± 1.82e-08
Physical Parameters
H (abs. magnitude)17.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.570″
Uncertainty0
Orbit TypeApollo
MOID0.134581 AU
Observations Used493
Oppositions10
Arc Total2008-2024
First Observation Used2008-03-09
Last Observation Used2024-05-18
Observations (678)
Date Type RA Dec Mag Band Observatory
2008-03-09 17:47:17 C 14 19 37.38 -33 49 46.6 r E12
2008-03-09 17:59:47 C 14 19 34.10 -33 49 29.8 r E12
2008-03-09 18:25:12 C 14 19 27.40 -33 48 55.6 r E12
2008-03-09 19:08:39 C 14 19 15.95 -33 47 57.1 r E12
2008-03-09 19:11:29 C 14 19 15.20 -33 47 52.9 r E12
2008-03-10 09:02:23 C 14 15 42.76 -33 29 25.9 c 854
2008-03-10 09:03:40 C 14 15 43.08 -33 28 55.8 o 474
2008-03-10 09:03:46 C 14 15 42.41 -33 29 24.2 c 854
2008-03-10 09:06:31 C 14 15 41.68 -33 29 20.7 c 854
2008-03-10 09:06:40 C 14 15 42.29 -33 28 53.9 o 474
2008-03-10 09:09:50 C 14 15 41.49 -33 28 48.3 o 474
2008-03-10 09:25:19 C 14 15 37.57 -33 28 27.1 o 474
2008-03-10 09:27:50 C 14 15 36.98 -33 28 23.7 o 474
2008-03-10 10:16:58 C 14 15 23.48 -33 27 44.1 701
2008-03-10 10:32:58 C 14 15 19.09 -33 27 21.6 701
2008-03-10 11:04:58 C 14 15 10.73 -33 26 37.9 701
2008-03-10 11:20:59 C 14 15 06.59 -33 26 17.1 701
2008-03-10 12:34:08 C 14 14 49.388 -33 24 14.52 r E12
2008-03-10 12:37:02 C 14 14 48.642 -33 24 10.62 r E12
2008-03-10 18:58:20 C 14 13 09.711 -33 15 27.60 r E12
2008-03-10 19:02:43 C 14 13 08.565 -33 15 21.46 r E12
2008-03-10 19:07:10 C 14 13 07.419 -33 15 15.24 r E12
2008-03-11 18:13:09 C 14 07 18.100 -32 42 36.30 r E12
2008-03-11 19:07:21 C 14 07 04.295 -32 41 17.57 r E12
2008-03-11 19:11:35 C 14 07 03.21 -32 41 11.5 r E12
2008-03-21 06:10:29 C 13 16 02.10 -26 39 32.0 r 808
2008-03-21 06:22:00 C 13 15 59.61 -26 39 10.1 r 808
2008-03-21 06:29:59 C 13 15 57.98 -26 38 58.8 r 808
2008-03-22 08:21:00 C 13 10 58.73 -25 55 53.1 o 673
2008-03-22 08:24:10 C 13 10 58.15 -25 55 47.6 o 673
2008-03-22 08:34:20 C 13 10 56.24 -25 55 31.0 o 673
2008-03-22 08:42:19 C 13 10 54.59 -25 55 17.5 o 673
2008-03-25 22:48:33 C 12 55 33.89 -23 32 03.7 c 595
2008-03-25 22:57:45 C 12 55 32.27 -23 31 48.6 c 595
2008-03-25 23:06:58 C 12 55 30.72 -23 31 33.3 c 595
2008-03-26 09:26:23 C 12 53 47.64 -23 14 37.0 r 448
2008-03-26 09:31:31 C 12 53 46.83 -23 14 28.9 r 448
2008-03-26 09:36:38 C 12 53 45.98 -23 14 19.9 r 448
2008-03-28 05:56:10 C 12 46 45.40 -22 02 40.5 r H51
2008-03-28 05:57:51 C 12 46 45.18 -22 02 37.1 r H51
2008-03-28 06:01:08 C 12 46 44.73 -22 02 32.8 r H51
2008-03-28 06:04:25 C 12 46 44.20 -22 02 27.3 r H51
2008-03-29 08:23:57 C 12 42 48.20 -21 20 42.8 r 703
2008-03-29 08:34:21 C 12 42 46.65 -21 20 26.6 r 703
2008-03-29 08:44:50 C 12 42 45.07 -21 20 09.8 r 703
2008-04-05 04:43:51 C 12 22 03.69 -17 19 15.3 r 448
2008-04-05 04:54:03 C 12 22 02.55 -17 19 01.5 r 448
2008-04-05 04:58:09 C 12 22 02.10 -17 18 56.0 r 448
2008-04-05 06:37:55 C 12 21 51.04 -17 16 40.4 r 703
2008-04-05 06:48:16 C 12 21 49.93 -17 16 26.9 r 703