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
2018-03-11 05:27:17 C 13 07 19.46 -28 13 14.8 U W87
2018-03-11 05:30:41 C 13 07 19.25 -28 13 34.0 U W87
2018-03-11 05:32:57 C 13 07 19.11 -28 13 47.1 U W87
2018-03-11 07:05:47 C 13 07 13.43 -28 22 35.2 U W87
2018-03-11 07:09:12 C 13 07 13.21 -28 22 54.6 U W87
2018-03-11 07:12:37 C 13 07 13.01 -28 23 14.0 U W87
2018-03-11 07:16:01 C 13 07 12.80 -28 23 33.3 U W87
2018-03-11 07:19:25 C 13 07 12.59 -28 23 52.8 U W87
2018-03-11 07:22:49 C 13 07 12.38 -28 24 12.1 U W87
2018-03-11 07:26:13 C 13 07 12.18 -28 24 31.4 U W87
2018-03-11 07:29:38 C 13 07 11.96 -28 24 51.0 U W87
2018-03-11 07:31:54 C 13 07 11.81 -28 25 03.8 U W87
2018-03-11 09:05:46 C 13 07 06.11 -28 33 58.0 U W85
2018-03-11 09:09:10 C 13 07 05.91 -28 34 17.2 U W85
2018-03-11 09:12:34 C 13 07 05.72 -28 34 36.7 U W85
2018-03-11 09:15:57 C 13 07 05.51 -28 34 56.0 U W85
2018-03-11 09:19:21 C 13 07 05.30 -28 35 15.0 U W85
2018-03-11 09:22:44 C 13 07 05.10 -28 35 34.4 U W85
2018-03-11 09:26:11 C 13 07 04.90 -28 35 54.0 U W85
2018-03-11 09:29:34 C 13 07 04.69 -28 36 13.5 U W85
2018-03-11 09:31:50 C 13 07 04.56 -28 36 26.3 U W85
2018-03-11 13:05:47 C 13 06 59.02 -28 57 08.3 U Q63
2018-03-11 13:09:12 C 13 06 58.84 -28 57 28.2 U Q63
2018-03-11 13:12:38 C 13 06 58.62 -28 57 48.7 U Q63
2018-03-11 13:16:03 C 13 06 58.41 -28 58 09.0 U Q63
2018-03-11 13:19:30 C 13 06 58.19 -28 58 29.5 U Q63
2018-03-11 13:22:56 C 13 06 57.99 -28 58 49.7 U Q63
2018-03-11 13:26:22 C 13 06 57.78 -28 59 10.0 U Q63
2018-03-11 13:29:48 C 13 06 57.56 -28 59 30.6 U Q63
2018-03-11 13:32:05 C 13 06 57.43 -28 59 44.0 U Q63
2018-03-12 05:05:43 C 13 06 07.41 -30 34 13.9 U W87
2018-03-12 05:09:08 C 13 06 07.16 -30 34 35.2 U W87
2018-03-12 05:12:32 C 13 06 06.92 -30 34 57.0 U W87
2018-03-12 05:15:56 C 13 06 06.68 -30 35 18.3 U W87
2018-03-12 05:19:21 C 13 06 06.43 -30 35 39.6 U W87
2018-03-12 05:22:45 C 13 06 06.17 -30 36 01.6 U W87
2018-03-12 05:26:09 C 13 06 05.92 -30 36 22.9 U W87
2018-03-12 05:29:33 C 13 06 05.68 -30 36 44.1 U W87
2018-03-12 05:31:50 C 13 06 05.52 -30 36 58.7 U W87
2018-03-13 02:45:46 C 13 04 48.26 -32 56 55.9 U W87
2018-03-13 02:48:56 C 13 04 48.03 -32 57 18.5 U W87
2018-03-13 02:52:05 C 13 04 47.75 -32 57 40.3 U W87
2018-03-13 02:55:14 C 13 04 47.50 -32 58 02.3 U W87
2018-03-13 02:58:23 C 13 04 47.25 -32 58 24.9 U W87
2018-03-13 03:01:32 C 13 04 47.01 -32 58 46.7 U W87
2018-03-13 03:06:48 C 13 04 46.60 -32 59 23.7 U W87
2018-03-13 03:09:58 C 13 04 46.33 -32 59 45.9 U W87
2018-03-13 03:12:04 C 13 04 46.16 -33 00 00.7 U W87
2018-03-13 04:45:52 C 13 04 38.33 -33 11 00.5 U W87
2018-03-13 04:53:15 C 13 04 37.71 -33 11 51.8 U W87