2017 ER2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5286428621 ± 2.32e-04
Semi-major axis (a)2.3955393524 AU ± 1.22e-03
Inclination (i)9.55578142° ± 2.91e-03
Long. of Asc. Node (Ω)351.62620823° ± 1.17e-03
Arg. of Perihelion (ω)164.54454510° ± 2.80e-03
Mean Anomaly (M)130.96430642° ± 6.39e-01
Mean Motion (n)0.2658320325°/day ± 2.04e-04
Perihelion dist (q)1.12915457 AU ± 8.01e-04
Aphelion dist (Q)3.66192413 AU ± 1.95e-03
Orbital Period3.70770322 yr ± 2.84e-03
Physical Parameters
H (abs. magnitude)24.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.278″
Uncertainty3
Orbit TypeAmor
MOID0.142852 AU
Observations Used23
Oppositions1
Arc Total2017-2017
First Observation Used2017-03-04
Last Observation Used2017-03-27
Observations (23)
Date Type RA Dec Mag Band Observatory
2017-03-04 10:52:49 C 12 29 58.502 +04 46 49.86 L F51
2017-03-04 11:10:20 C 12 29 59.058 +04 45 36.98 L F51
2017-03-04 11:27:55 C 12 29 59.618 +04 44 24.16 L F51
2017-03-06 03:25:38 C 12 31 52.52 +01 59 55.6 u 807
2017-03-06 03:42:29 C 12 31 53.09 +01 58 46.9 u 807
2017-03-06 03:59:18 C 12 31 53.61 +01 57 38.0 u 807
2017-03-07 04:53:49 C 12 32 56.06 +00 16 32.9 u 807
2017-03-07 05:07:20 C 12 32 56.44 +00 15 38.3 u 807
2017-03-07 05:20:23 C 12 32 56.78 +00 14 45.5 u 807
2017-03-07 06:30:23 C 12 33 00.87 +00 09 00.7 o 291
2017-03-07 06:47:49 C 12 33 01.36 +00 07 50.4 o 291
2017-03-07 07:05:13 C 12 33 01.85 +00 06 41.0 o 291
2017-03-09 07:31:42 C 12 34 51.56 -03 04 04.9 o 291
2017-03-09 07:47:09 C 12 34 51.90 -03 05 04.3 o 291
2017-03-18 08:57:35 C 12 40 10.36 -15 15 58.1 t 705
2017-03-18 08:59:02 C 12 40 10.39 -15 16 01.7 t 705
2017-03-18 09:00:30 C 12 40 10.38 -15 16 06.0 t 705
2017-03-21 06:04:12 C 12 41 03.83 -18 18 43.0 u 807
2017-03-21 06:14:17 C 12 41 03.79 -18 19 07.7 u 807
2017-03-21 06:24:19 C 12 41 03.75 -18 19 32.6 u 807
2017-03-27 06:24:16 C 12 42 04.42 -23 27 14.3 u 807
2017-03-27 06:39:25 C 12 42 04.30 -23 27 41.5 u 807
2017-03-27 07:01:31 C 12 42 04.13 -23 28 20.9 u 807