267940 (2004 EM20)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5240095084 ± 7.55e-03
Semi-major axis (a)1.1053730634 AU ± 1.88e-03
Inclination (i)14.13713680° ± 6.01e-01
Long. of Asc. Node (Ω)343.74140747° ± 1.49e+00
Arg. of Perihelion (ω)314.92176498° ± 2.03e+00
Mean Anomaly (M)162.51381471° ± 1.67e+00
Mean Motion (n)0.8481037049°/day ± 2.17e-03
Perihelion dist (q)0.52614707 AU ± 8.39e-03
Aphelion dist (Q)1.68459906 AU ± 8.82e-03
Orbital Period1.16215302 yr ± 2.97e-03
NGA Modelr2
A2-2.74664471e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-29
RMS Residual0.339″
Uncertainty0
Orbit TypeApollo
MOID0.090441 AU
Observations Used286
Oppositions3
Arc Total2004-2025
First Observation Used2004-02-19
Last Observation Used2025-03-01
Observations (294)
Date Type RA Dec Mag Band Observatory
2004-03-18 03:59:39 C 08 51 48.72 +13 27 20.8 19.7 c 704
2004-03-18 04:15:48 C 08 51 44.63 +13 27 12.1 19.7 c 704
2004-03-18 04:31:38 C 08 51 40.66 +13 27 03.9 20.1 c 704
2004-03-18 04:47:53 C 08 51 36.61 +13 26 55.2 19.7 c 704
2004-03-18 05:04:25 C 08 51 32.43 +13 26 47.1 19.9 c 704
2004-03-18 05:33:15 C 08 51 25.19 +13 26 32.8 20.1 c 704
2004-03-18 05:50:02 C 08 51 20.93 +13 26 22.0 20.2 c 704
2004-03-18 06:06:59 C 08 51 16.70 +13 26 14.2 20.4 c 704
2004-03-18 06:26:21 C 08 51 11.88 +13 26 03.8 20.4 c 704
2004-03-18 06:42:40 C 08 51 07.76 +13 25 54.4 20.4 c 704
2004-03-18 19:32:26 C 08 48 02.30 +13 19 03.0 c 246
2004-03-18 19:34:34 C 08 48 01.87 +13 19 02.2 c 246
2004-03-19 03:59:45 C 08 45 59.70 +13 14 36.5 19.5 c 704
2004-03-19 04:15:23 C 08 45 55.80 +13 14 27.5 19.7 c 704
2004-03-19 04:30:45 C 08 45 51.99 +13 14 18.7 19.7 c 704
2004-03-19 04:46:30 C 08 45 48.10 +13 14 09.3 19.9 c 704
2004-03-19 05:02:24 C 08 45 44.13 +13 14 01.3 19.6 c 704
2004-03-20 05:35:38 C 08 39 50.87 +13 00 09.9 19.4 c 704
2004-03-20 06:09:57 C 08 39 42.47 +12 59 48.5 20.0 c 704
2004-03-20 06:26:16 C 08 39 38.46 +12 59 39.1 19.4 c 704
2004-03-20 06:43:17 C 08 39 34.32 +12 59 28.8 19.8 c 704
2004-03-21 05:14:03 C 08 34 15.06 +12 46 02.5 r H36
2004-03-21 05:25:26 C 08 34 12.41 +12 45 54.6 r H36
2004-03-21 05:36:31 C 08 34 09.84 +12 45 48.4 r H36
2004-03-22 03:48:27 C 08 29 00.07 +12 32 03.5 c 926
2004-03-22 03:50:13 C 08 28 59.62 +12 32 02.0 c 926
2004-03-22 03:51:59 C 08 28 59.19 +12 32 01.7 c 926
2004-03-28 03:11:46 C 07 57 32.62 +10 51 20.8 c 926
2004-03-28 03:16:31 C 07 57 31.57 +10 51 18.5 c 926
2004-03-28 03:21:10 C 07 57 30.56 +10 51 14.1 c 926
2004-03-29 11:26:58 C 07 50 58.562 +10 27 08.87 r 413
2004-03-29 11:36:42 C 07 50 56.567 +10 27 01.36 r 413
2004-04-16 03:25:07 C 06 39 31.45 +04 44 26.7 o 696
2004-04-16 03:28:35 C 06 39 30.87 +04 44 24.8 o 696
2004-04-16 03:32:04 C 06 39 30.37 +04 44 21.3 o 696
2004-04-20 02:54:28 C 06 25 24.09 +03 30 46.1 d 291
2004-04-20 02:59:56 C 06 25 23.23 +03 30 38.7 d 291
2004-04-20 03:05:11 C 06 25 22.51 +03 30 36.6 d 291
2005-03-09 07:39:23 C 07 04 51.090 +33 40 15.78 o 568
2005-03-09 07:44:49 C 07 04 50.937 +33 40 12.58 o 568
2005-11-25 10:45:34 C 08 51 56.04 +52 13 38.8 o 696
2005-11-25 11:12:07 C 08 51 53.50 +52 14 02.9 o 696
2006-12-12 04:00:56 C 22 11 44.57 +21 11 08.3 d 291
2006-12-12 04:12:30 C 22 11 47.72 +21 11 27.7 d 291
2011-01-27 11:42:50 C 12 19 53.66 +06 57 02.0 o 291
2011-01-27 11:54:11 C 12 19 53.75 +06 56 58.9 o 291
2011-01-27 12:05:49 C 12 19 53.90 +06 56 56.5 o 291
2011-02-23 06:33:37 C 11 58 49.95 +03 41 56.9 o 691
2011-02-23 06:59:09 C 11 58 47.30 +03 41 46.7 o 691
2011-02-23 07:24:42 C 11 58 44.63 +03 41 36.4 o 691