2015 ER

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8165525490 ± 4.50e-07
Semi-major axis (a)2.3160006725 AU ± 9.13e-08
Inclination (i)11.57778811° ± 4.46e-05
Long. of Asc. Node (Ω)334.83376952° ± 3.39e-05
Arg. of Perihelion (ω)305.93277520° ± 8.95e-05
Mean Anomaly (M)355.68870930° ± 4.54e-05
Mean Motion (n)0.2796431944°/day ± 1.65e-08
Perihelion dist (q)0.42486442 AU ± 1.04e-06
Aphelion dist (Q)4.20713693 AU ± 1.06e-06
Orbital Period3.52458527 yr ± 2.08e-07
Physical Parameters
H (abs. magnitude)21.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.291″
Uncertainty0
Orbit TypeApollo
MOID0.067584 AU
Observations Used94
Oppositions5
Arc Total2015-2022
First Observation Used2015-03-10
Last Observation Used2022-03-02
Observations (94)
Date Type RA Dec Mag Band Observatory
2015-03-10 05:25:01 C 09 32 20.07 +04 42 32.1 q 703
2015-03-10 05:30:47 C 09 32 17.88 +04 42 28.8 q 703
2015-03-10 05:42:22 C 09 32 13.14 +04 42 26.3 q 703
2015-03-10 06:10:48 C 09 32 01.60 +04 42 18.9 q 703
2015-03-10 06:13:01 C 09 32 00.69 +04 42 17.6 q 703
2015-03-10 06:15:15 C 09 31 59.82 +04 42 17.6 q 703
2015-03-10 06:17:29 C 09 31 58.96 +04 42 15.8 q 703
2015-03-10 06:19:43 C 09 31 58.02 +04 42 15.3 q 703
2015-03-10 08:58:08 C 09 30 53.95 +04 41 29.0 o 291
2015-03-10 08:59:37 C 09 30 53.35 +04 41 28.6 o 291
2015-03-10 09:01:04 C 09 30 52.76 +04 41 28.1 o 291
2015-03-10 19:01:33 C 09 26 52.20 +04 38 20.4 19.6 q 104
2015-03-10 19:06:53 C 09 26 49.98 +04 38 18.7 19.1 q 104
2015-03-10 19:13:16 C 09 26 47.32 +04 38 16.4 19.1 q 104
2015-03-10 19:58:01 C 09 26 28.51 +04 38 01.7 o K51
2015-03-10 20:00:32 C 09 26 27.47 +04 38 01.0 o K51
2015-03-10 20:02:46 C 09 26 26.53 +04 38 00.4 o K51
2015-03-10 20:17:30 C 09 26 20.37 +04 37 57.0 q 160
2015-03-10 20:21:27 C 09 26 18.70 +04 37 55.5 q 160
2015-03-10 20:25:23 C 09 26 17.02 +04 37 54.2 q 160
2015-03-10 20:29:19 C 09 26 15.36 +04 37 52.9 q 160
2015-03-10 20:31:20 C 09 26 14.86 +04 37 53.2 q B74
2015-03-10 20:37:46 C 09 26 12.15 +04 37 51.4 q B74
2015-03-10 20:45:02 C 09 26 09.11 +04 37 49.3 q B74
2015-03-11 03:58:32 C 09 23 07.90 +04 35 34.7 o 291
2015-03-11 03:59:52 C 09 23 07.33 +04 35 34.1 o 291
2015-03-11 04:01:14 C 09 23 06.75 +04 35 33.7 o 291
2015-03-11 05:11:43 C 09 22 36.03 +04 35 10.1 q 448
2015-03-11 05:41:53 C 09 22 22.93 +04 35 00.0 q 448
2015-03-11 06:14:09 C 09 22 08.86 +04 34 49.3 q 448
2015-03-11 06:41:02 C 09 21 57.17 +04 34 39.9 q 448
2015-03-11 20:21:59 C 09 16 00.37 +04 29 45.3 t 204
2015-03-11 20:38:55 C 09 15 52.66 +04 29 39.3 t 204
2015-03-11 20:52:59 C 09 15 46.33 +04 29 33.2 t 204
2015-03-11 21:56:31 C 09 15 17.38 +04 29 11.0 q 203
2015-03-11 22:37:57 C 09 14 58.51 +04 28 55.5 q 203
2015-03-12 01:25:16 C 09 13 45.13 +04 27 55.9 q H36
2015-03-12 01:32:46 C 09 13 41.65 +04 27 52.8 q H36
2015-03-12 01:40:54 C 09 13 37.94 +04 27 49.7 q H36
2015-03-12 02:03:12 C 09 13 27.69 +04 27 40.6 q H36
2015-03-12 05:55:58 C 09 11 39.28 +04 26 12.1 q H21
2015-03-12 06:06:50 C 09 11 34.09 +04 26 07.4 q H21
2015-03-12 23:57:21 C 09 03 11.65 +04 19 35.1 u 807
2015-03-13 00:02:47 C 09 03 08.98 +04 19 32.6 u 807
2015-03-13 00:08:28 C 09 03 06.19 +04 19 30.2 u 807
2015-03-13 03:18:44 C 09 01 31.56 +04 18 07.6 u 807
2015-03-13 03:25:34 C 09 01 28.15 +04 18 04.5 u 807
2015-03-13 03:32:21 C 09 01 24.75 +04 18 01.8 u 807
2015-03-14 00:00:38 C 08 51 06.43 +04 08 27.4 u 807
2015-03-14 00:10:42 C 08 51 01.10 +04 08 22.2 u 807