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
2015-03-14 00:21:07 C 08 50 55.59 +04 08 17.1 u 807
2015-03-14 10:00:42 C 08 45 48.41 +04 03 28.7 t 474
2015-03-14 10:01:29 C 08 45 47.96 +04 03 28.3 t 474
2015-03-14 10:03:34 C 08 45 46.86 +04 03 27.2 t 474
2015-03-14 10:04:37 C 08 45 46.27 +04 03 26.8 t 474
2015-03-14 10:05:16 C 08 45 45.93 +04 03 26.3 t 474
2015-03-15 06:51:10 C 08 34 17.92 +03 50 58.8 t 705
2015-03-15 06:53:01 C 08 34 17.03 +03 50 58.1 t 705
2015-03-15 06:54:53 C 08 34 15.94 +03 50 56.4 t 705
2015-03-16 23:57:55 C 08 09 47.46 +03 24 49.4 u 807
2015-03-17 00:00:30 C 08 09 45.81 +03 24 47.5 u 807
2015-03-17 00:04:14 C 08 09 43.44 +03 24 45.0 u 807
2015-03-17 02:51:36 C 08 07 57.03 +03 21 50.1 u H21
2015-03-17 02:55:04 C 08 07 54.79 +03 21 47.9 u H21
2015-03-17 02:58:56 C 08 07 52.32 +03 21 44.6 u H21
2015-03-17 03:02:16 C 08 07 50.18 +03 21 42.1 u H21
2015-03-17 19:18:39 C 07 57 23.33 +03 09 12.2 q 246
2015-03-17 19:19:18 C 07 57 22.92 +03 09 12.4 q 246
2015-03-17 19:19:50 C 07 57 22.62 +03 09 12.0 q 246
2015-03-17 19:20:28 C 07 57 22.17 +03 09 11.4 q 246
2015-03-17 19:20:52 C 07 57 21.91 +03 09 11.0 q 246
2015-03-17 19:21:13 C 07 57 21.62 +03 09 10.5 q 246
2015-03-17 19:22:22 C 07 57 20.91 +03 09 09.6 q 246
2015-03-17 19:23:07 C 07 57 20.45 +03 09 08.7 q 246
2015-03-20 19:18:39 C 07 07 25.41 +02 04 19.4 q 246
2015-03-20 19:19:03 C 07 07 25.17 +02 04 19.0 q 246
2015-03-20 19:19:30 C 07 07 24.85 +02 04 18.9 q 246
2015-03-20 19:21:04 C 07 07 23.63 +02 04 16.8 q 246
2015-03-22 01:16:49 C 06 45 26.18 +01 33 28.7 u H21
2015-03-22 01:28:27 C 06 45 17.48 +01 33 17.1 u H21
2015-03-23 02:36:17 C 06 26 39.20 +01 06 17.7 q H21
2015-03-23 02:43:36 C 06 26 33.66 +01 06 08.3 q H21
2015-03-23 02:50:01 C 06 26 28.86 +01 06 01.5 q H21
2015-03-25 05:43:50 C 05 49 11.533 +00 10 52.55 t 568
2015-03-25 05:44:40 C 05 49 10.935 +00 10 51.70 t 568
2015-03-28 03:05:27 C 05 01 37.17 -01 00 05.1 o 291
2015-03-28 03:10:03 C 05 01 34.14 -01 00 09.7 o 291
2015-03-28 03:14:46 C 05 01 31.05 -01 00 14.2 o 291
2022-03-02 07:00:54 C 09 18 31.887 +17 26 26.82 U F52
2022-03-02 07:18:17 C 09 18 29.087 +17 26 32.32 U F52
2022-03-02 07:35:41 C 09 18 26.284 +17 26 37.29 U F52
2022-03-02 07:53:17 C 09 18 23.394 +17 26 42.73 U F52
2022-03-02 09:30:29 C 09 18 07.651 +17 27 11.24 V F52
2022-03-02 09:31:24 C 09 18 07.504 +17 27 11.56 V F52