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
2019-03-27 11:50:54 C 13 16 11.71 -22 32 32.0 V T05
2019-03-27 12:02:09 C 13 16 10.06 -22 32 18.0 V T05
2019-03-29 08:00:42 C 13 09 48.12 -21 38 48.5 V 703
2019-03-29 08:16:09 C 13 09 45.96 -21 38 29.7 V 703
2019-03-29 08:23:54 C 13 09 44.85 -21 38 20.1 V 703
2019-03-29 11:32:06 C 13 09 18.19 -21 34 29.0 V T08
2019-03-29 11:44:43 C 13 09 16.39 -21 34 14.0 V T08
2019-03-29 11:48:42 C 13 09 15.83 -21 34 09.0 V T08
2019-03-29 11:53:20 C 13 09 15.12 -21 34 03.3 V T08
2019-03-29 11:57:19 C 13 09 14.69 -21 34 00.6 V T08
2019-03-30 08:14:33 S 13 07 04.080 -21 09 06.70 V C57
2019-03-30 08:14:33 s 1 +78998.638 0 +313373.67 5590.0 C57
2019-03-30 08:44:34 S 13 06 59.856 -21 08 30.37 V C57
2019-03-30 08:44:34 s 1 +78002.156 0 +314535.34 9930.0 C57
2019-03-30 09:44:33 S 13 06 51.694 -21 07 15.74 V C57
2019-03-30 09:44:33 s 1 +76000.786 0 +316824.71 4260.0 C57
2019-03-30 10:14:33 S 13 06 47.585 -21 06 39.49 V C57
2019-03-30 10:14:33 s 1 +74996.009 0 +317952.50 4810.0 C57
2019-03-30 10:44:34 S 13 06 43.961 -21 05 58.81 V C57
2019-03-30 10:44:34 s 1 +73988.576 0 +319069.07 4640.0 C57
2019-03-30 11:14:33 S 13 06 40.241 -21 05 27.92 V C57
2019-03-30 11:14:33 s 1 +72978.541 0 +320174.46 4040.0 C57
2019-03-30 12:44:33 S 13 06 28.102 -21 03 38.56 V C57
2019-03-30 12:44:33 s 1 +69933.348 0 +323423.99 2180.0 C57
2019-03-30 13:14:33 S 13 06 24.408 -21 03 02.02 V C57
2019-03-30 13:14:33 s 1 +68913.426 0 +324485.07 2410.0 C57
2019-03-31 10:40:15 C 13 02 49.56 -20 37 19.6 V T05
2019-03-31 10:50:49 C 13 02 48.06 -20 37 06.8 V T05
2019-03-31 11:02:20 C 13 02 46.51 -20 36 52.8 V T05
2019-03-31 11:15:17 C 13 02 44.70 -20 36 37.1 V T05
2019-03-31 21:44:33 S 13 02 09.953 -20 23 41.71 V C57
2019-03-31 22:44:33 S 13 02 02.227 -20 22 27.41 V C57
2019-03-31 23:14:33 S 13 01 58.284 -20 21 54.61 V C57
2019-03-31 23:44:33 S 13 01 54.338 -20 21 16.92 V C57
2019-04-01 00:14:33 S 13 01 50.582 -20 20 40.60 V C57
2019-04-01 00:44:33 S 13 01 46.430 -20 20 09.06 V C57
2019-04-01 02:14:33 S 13 01 35.282 -20 18 17.14 V C57
2019-04-01 02:14:33 s 1 -10320.637 0 +374581.13 550.0 C57
2019-04-01 03:14:33 S 13 01 27.396 -20 17 05.96 V C57
2019-04-01 03:14:33 s 1 -12498.910 0 +375204.52 550.0 C57
2019-04-01 03:44:33 S 13 01 23.585 -20 16 28.16 V C57
2019-04-01 03:44:33 s 1 -13587.665 0 +375502.53 6310.0 C57
2019-04-01 04:14:33 S 13 01 19.442 -20 15 48.53 V C57
2019-04-01 04:14:33 s 1 -14676.131 0 +375791.45 6060.0 C57
2019-04-01 04:44:33 S 13 01 15.934 -20 15 16.85 V C57
2019-04-01 04:44:33 s 1 -15764.284 0 +376071.27 9930.0 C57
2019-04-01 05:44:33 S 13 01 08.136 -20 14 03.05 V C57
2019-04-01 05:44:33 s 1 -17939.550 0 +376603.72 530.0 C57
2019-04-01 06:44:33 S 13 00 59.638 -20 12 46.73 V C57
2019-04-01 06:44:33 s 1 -20113.264 0 +377099.98 9050.0 C57