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
2021-07-08 22:22:19 C 16 21 57.25 -06 21 37.2 q Y00
2021-07-08 22:36:46 C 16 21 54.87 -06 21 28.0 q Y00
2021-07-09 08:12:08 C 16 20 23.66 -06 16 29.1 V T08
2021-07-09 08:16:47 C 16 20 22.90 -06 16 26.4 V T08
2021-07-09 08:36:45 C 16 20 19.68 -06 16 16.0 V T08
2021-07-09 11:45:28 C 16 19 50.534 -06 14 25.51 V P07
2021-07-09 12:33:10 C 16 19 42.893 -06 13 59.99 V P07
2021-07-09 12:41:01 C 16 19 41.638 -06 13 56.03 V P07
2021-07-09 12:57:32 C 16 19 38.964 -06 13 47.10 V P07
2021-07-10 07:51:30 C 16 16 40.221 -06 03 51.51 U F51
2021-07-10 08:07:43 C 16 16 37.610 -06 03 42.85 U F51
2021-07-10 08:23:46 C 16 16 35.031 -06 03 34.32 U F51
2021-07-11 07:37:26 C 16 12 56.47 -05 51 16.6 V T05
2021-07-11 07:46:07 C 16 12 55.08 -05 51 12.2 V T05
2021-07-11 07:51:25 C 16 12 54.17 -05 51 09.5 V T05
2021-07-11 08:35:06 C 16 12 47.19 -05 50 46.8 V T05
2021-07-12 21:56:47 C 16 06 57.62 -05 31 17.9 V Z45
2021-07-12 22:21:20 C 16 06 53.78 -05 31 02.6 V Z45
2021-07-14 06:26:53 C 16 01 56.303 -05 14 31.89 U F51
2021-07-14 06:47:06 C 16 01 53.104 -05 14 21.60 U F51
2021-07-14 07:07:20 C 16 01 49.913 -05 14 11.28 U F51
2021-07-14 07:27:35 C 16 01 46.726 -05 14 00.97 U F51
2021-07-17 06:44:39 C 15 50 57.11 -04 38 28.9 V T08
2021-07-17 07:31:50 C 15 50 49.87 -04 38 05.7 V T08
2021-07-17 07:37:08 C 15 50 49.04 -04 38 03.2 V T08
2021-07-17 08:16:07 C 15 50 43.08 -04 37 44.2 V T08
2021-07-18 06:35:26 C 15 47 23.97 -04 26 58.4 V T05
2021-07-18 06:40:44 C 15 47 23.19 -04 26 55.7 V T05
2021-07-18 06:56:40 C 15 47 20.69 -04 26 48.6 V T05
2021-07-18 07:05:14 C 15 47 19.37 -04 26 43.8 V T05
2021-07-25 07:16:00 C 15 23 28.50 -03 11 30.4 V T08
2021-07-25 07:22:00 C 15 23 27.69 -03 11 28.6 V T08
2021-07-25 07:30:39 C 15 23 26.49 -03 11 25.2 V T08
2021-07-25 07:48:35 C 15 23 24.03 -03 11 17.3 V T08
2021-07-25 11:39:23 C 15 22 53.359 -03 09 32.26 V P07
2021-07-25 11:56:55 C 15 22 50.947 -03 09 24.95 V P07
2021-07-25 13:19:01 C 15 22 39.622 -03 08 50.82 V P07
2021-07-25 14:13:27 C 15 22 32.086 -03 08 28.25 V P07
2021-07-25 14:17:12 C 15 22 31.630 -03 08 27.20 V P07
2021-07-25 14:39:14 C 15 22 28.594 -03 08 18.24 V P07
2021-07-25 14:43:10 C 15 22 28.003 -03 08 16.04 V P07
2021-07-29 08:05:59 C 15 10 47.28 -02 33 09.6 V T08
2021-07-29 08:07:19 C 15 10 47.28 -02 33 09.0 V T08
2021-07-29 08:14:42 C 15 10 46.30 -02 33 05.8 V T08
2021-07-29 08:16:02 C 15 10 46.09 -02 33 06.0 V T08
2021-07-29 08:20:41 C 15 10 45.52 -02 33 04.6 V T08
2021-07-29 08:42:35 C 15 10 42.67 -02 32 55.6 V T08
2021-07-29 08:44:35 C 15 10 42.46 -02 32 53.6 V T08
2021-07-31 07:06:27 C 15 04 54.90 -02 15 48.2 V T05
2021-07-31 07:12:26 C 15 04 54.12 -02 15 46.2 V T05