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
2018-03-13 05:00:36 C 13 04 37.05 -33 12 44.0 U W87
2018-03-13 05:10:05 C 13 04 36.25 -33 13 50.3 U W87
2018-03-13 06:50:05 C 13 04 27.41 -33 25 34.3 U W87
2018-03-13 06:58:29 C 13 04 26.67 -33 26 33.1 U W87
2018-03-13 07:05:50 C 13 04 26.00 -33 27 25.0 U W87
2018-03-13 08:45:45 C 13 04 17.17 -33 39 07.7 U W87
2018-03-13 08:53:07 C 13 04 16.53 -33 39 59.6 U W87
2018-03-13 09:00:30 C 13 04 15.88 -33 40 51.6 U W87
2018-03-13 09:07:52 C 13 04 15.24 -33 41 43.6 U W87
2018-03-13 09:13:08 C 13 04 14.78 -33 42 20.6 U W87
2019-01-05 09:55:45 C 10 31 18.33 +29 05 31.1 u H21
2019-01-05 10:16:19 C 10 31 17.36 +29 05 40.1 u H21
2019-01-05 10:35:23 C 10 31 16.49 +29 05 47.6 u H21
2019-01-09 07:04:14 C 10 26 34.53 +29 48 19.7 u H21
2019-01-09 07:26:42 C 10 26 33.11 +29 48 29.8 u H21
2019-01-09 07:35:55 C 10 26 32.46 +29 48 33.9 u H21
2019-01-10 12:05:24 C 10 24 49.995 +30 02 20.15 U F51
2019-01-10 12:20:19 C 10 24 48.989 +30 02 27.18 U F51
2019-01-10 12:35:17 C 10 24 48.025 +30 02 34.64 U F51
2019-11-25 10:13:08 C 09 21 45.12 +42 28 16.3 u H21
2019-11-25 10:27:38 C 09 21 44.77 +42 28 25.0 u H21
2019-11-25 10:41:52 C 09 21 44.48 +42 28 33.3 u H21
2019-11-26 10:02:41 C 09 21 18.26 +42 42 44.1 u H21
2019-11-26 10:10:05 C 09 21 18.13 +42 42 48.7 u H21
2019-11-26 10:18:19 C 09 21 18.07 +42 42 53.0 u H21
2019-12-05 07:56:50 C 09 13 10.24 +45 04 11.6 u H21
2019-12-05 08:13:48 C 09 13 09.21 +45 04 23.4 u H21
2019-12-05 08:22:35 C 09 13 08.66 +45 04 29.5 u H21
2019-12-07 09:34:59 C 09 10 05.69 +45 39 11.3 u H21
2019-12-07 09:47:34 C 09 10 04.82 +45 39 20.0 u H21
2020-01-01 10:51:33 C 07 52 42.985 +51 12 25.01 U F51
2020-01-01 11:11:17 C 07 52 39.350 +51 12 28.26 U F51
2020-01-01 11:30:53 C 07 52 35.734 +51 12 31.84 U F51
2020-01-01 11:50:26 C 07 52 32.117 +51 12 35.11 U F51
2020-01-24 09:01:18 C 06 23 59.547 +48 13 17.59 U F51
2020-01-24 09:19:59 C 06 23 57.307 +48 13 04.89 U F51
2020-01-24 09:57:06 C 06 23 52.824 +48 12 38.44 U F51
2020-11-20 03:03:51 C 20 07 17.49 +56 04 30.5 V G96
2020-11-20 03:12:37 C 20 07 22.99 +56 04 44.9 V G96
2020-11-20 03:30:09 C 20 07 34.01 +56 05 13.7 V G96
2025-03-01 14:29:54 C 15 05 21.521 -28 42 08.52 X F52
2025-03-01 14:44:35 C 15 05 25.353 -28 42 58.37 X F52
2025-03-01 14:59:16 C 15 05 29.162 -28 43 47.83 X F52
2025-03-01 15:13:57 C 15 05 32.983 -28 44 37.35 X F52