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
2004-02-19 14:46:31 C 11 10 15.95 +14 11 24.0 t 608
2004-02-19 15:02:34 C 11 10 13.76 +14 11 26.2 t 608
2004-02-19 15:17:58 C 11 10 11.63 +14 11 29.7 t 608
2004-02-23 10:10:29 C 10 56 57.79 +14 28 41.1 t 608
2004-02-23 10:26:29 C 10 56 55.15 +14 28 42.7 t 608
2004-03-15 05:35:02 C 09 09 06.49 +13 59 52.4 19.6 c 704
2004-03-15 06:06:46 C 09 08 58.44 +13 59 38.2 19.7 c 704
2004-03-15 06:22:32 C 09 08 54.32 +13 59 31.4 19.5 c 704
2004-03-16 03:56:45 C 09 03 35.80 +13 50 19.2 c 854
2004-03-16 04:06:21 C 09 03 33.38 +13 50 16.0 c 854
2004-03-16 04:15:56 C 09 03 30.87 +13 50 12.8 c 854
2004-03-16 05:13:21 C 09 03 16.21 +13 49 46.4 19.0 c 704
2004-03-16 05:18:04 C 09 03 14.91 +13 49 43.6 19.6 c 704
2004-03-16 05:29:11 C 09 03 12.13 +13 49 38.3 19.3 c 704
2004-03-16 05:34:25 C 09 03 10.78 +13 49 36.3 20.2 c 704
2004-03-16 05:44:57 C 09 03 08.17 +13 49 32.3 19.7 c 704
2004-03-16 05:50:34 C 09 03 06.70 +13 49 28.8 19.7 c 704
2004-03-16 06:06:33 C 09 03 02.72 +13 49 21.3 19.6 c 704
2004-03-16 06:07:32 C 09 03 02.47 +13 49 21.3 19.7 c 704
2004-03-16 06:22:48 C 09 02 58.60 +13 49 14.6 19.4 c 704
2004-03-16 06:23:28 C 09 02 58.40 +13 49 13.7 19.5 c 704
2004-03-16 06:25:01 C 09 02 57.91 +13 49 13.4 o H06
2004-03-16 06:33:40 C 09 02 55.78 +13 49 08.9 o H06
2004-03-16 19:25:12 C 08 59 47.25 +13 43 11.8 o 151
2004-03-16 19:28:56 C 08 59 46.18 +13 43 09.3 c 246
2004-03-16 19:29:53 C 08 59 46.02 +13 43 08.7 c 246
2004-03-16 19:30:37 C 08 59 45.75 +13 43 09.2 c 246
2004-03-16 19:31:30 C 08 59 45.59 +13 43 08.6 c 246
2004-03-16 19:31:36 C 08 59 45.60 +13 43 09.0 o 151
2004-03-16 19:32:23 C 08 59 45.32 +13 43 07.9 c 246
2004-03-16 19:51:10 C 08 59 40.72 +13 43 02.4 c 587
2004-03-16 19:55:48 C 08 59 39.46 +13 42 59.8 c 587
2004-03-16 19:56:28 C 08 59 39.39 +13 42 56.2 r 240
2004-03-16 20:01:08 C 08 59 38.21 +13 42 54.1 r 240
2004-03-16 20:02:29 C 08 59 37.86 +13 42 53.4 r 240
2004-03-16 20:11:08 C 08 59 35.70 +13 42 49.6 r 240
2004-03-16 21:25:49 C 08 59 17.08 +13 42 13.0 r J95
2004-03-16 21:42:42 C 08 59 12.90 +13 42 04.3 r J95
2004-03-16 21:43:14 C 08 59 12.38 +13 42 05.9 r 106
2004-03-16 21:45:19 C 08 59 11.84 +13 42 05.7 r 106
2004-03-16 21:47:30 C 08 59 11.33 +13 42 05.8 r 106
2004-03-16 21:58:21 C 08 59 08.61 +13 41 58.1 r 557
2004-03-16 22:00:02 C 08 59 08.15 +13 41 57.6 r 557
2004-03-16 22:01:43 C 08 59 07.73 +13 41 56.9 r 557
2004-03-17 20:17:28 C 08 53 41.25 +13 31 07.8 c 246
2004-03-17 20:18:11 C 08 53 41.04 +13 31 07.9 c 246
2004-03-17 20:23:23 C 08 53 39.79 +13 31 05.8 c 246
2004-03-17 20:24:11 C 08 53 39.58 +13 31 05.0 c 246
2004-03-17 20:25:50 C 08 53 39.16 +13 31 04.2 c 246
2004-03-17 20:28:51 C 08 53 38.38 +13 31 02.9 c 246