2009 ER

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4688930000 ± 2.00e+00
Semi-major axis (a)1.8941380000 AU ± 3.00e+00
Inclination (i)4.44762000° ± 4.00e+00
Long. of Asc. Node (Ω)349.96714000° ± 5.00e+00
Arg. of Perihelion (ω)154.41069000° ± 6.00e+00
Mean Anomaly (M)154.93447000° ± 5.28e+00
Mean Motion (n)0.3780825631°/day ± 8.98e-01
Perihelion dist (q)1.00599000 AU ± 4.11e+00
Aphelion dist (Q)2.78228600 AU ± 5.81e+00
Orbital Period2.60685830 yr ± 6.19e+00
Physical Parameters
H (abs. magnitude)25.00
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual—″
Uncertainty4
Orbit TypeAmor
MOID0.029459 AU
Observations Used32
Oppositions1
Arc Total
First Observation Used
Last Observation Used2009-03-16
Observations (32)
Date Type RA Dec Mag Band Observatory
2009-03-02 04:57:07 C 09 31 38.35 +38 42 17.0 r 703
2009-03-02 05:09:18 C 09 31 50.37 +38 40 01.7 r 703
2009-03-02 05:21:40 C 09 32 02.50 +38 37 40.3 r 703
2009-03-02 05:34:32 C 09 32 15.28 +38 35 14.0 r 703
2009-03-02 06:07:22 C 09 32 46.59 +38 28 46.5 v H01
2009-03-02 06:10:22 C 09 32 49.55 +38 28 12.0 v H01
2009-03-02 06:14:17 C 09 32 53.33 +38 27 26.4 v H01
2009-03-02 06:18:16 C 09 32 57.25 +38 26 40.1 v H01
2009-03-02 06:37:12 C 09 33 17.04 +38 23 07.8 c 854
2009-03-02 06:42:40 C 09 33 22.33 +38 22 05.0 c 854
2009-03-02 06:48:04 C 09 33 27.61 +38 21 01.6 c 854
2009-03-02 09:55:17 C 09 36 31.74 +37 43 39.1 r 703
2009-03-02 10:05:13 C 09 36 41.57 +37 41 40.5 r 703
2009-03-02 10:15:04 C 09 36 51.56 +37 39 36.6 r 703
2009-03-02 10:24:58 C 09 37 01.41 +37 37 36.3 r 703
2009-03-03 00:47:38 C 09 51 43.27 +34 43 44.3 r J95
2009-03-03 00:50:36 C 09 51 46.00 +34 43 07.5 r J95
2009-03-03 00:53:35 C 09 51 48.75 +34 42 30.3 r J95
2009-03-03 04:20:04 C 09 55 23.88 +34 01 09.2 r G96
2009-03-03 04:20:34 C 09 55 24.34 +34 01 03.2 r G96
2009-03-03 04:21:13 C 09 55 24.92 +34 00 55.2 r G96
2009-03-03 04:21:53 C 09 55 25.53 +34 00 47.1 r G96
2009-03-03 04:39:44 C 09 55 34.47 +33 56 54.0 o H55
2009-03-03 04:46:32 C 09 55 40.51 +33 55 29.1 o H55
2009-03-03 04:52:15 C 09 55 45.58 +33 54 18.0 o H55
2009-03-03 05:12:21 C 09 56 09.11 +33 50 27.8 v H01
2009-03-03 05:16:30 C 09 56 12.74 +33 49 36.8 v H01
2009-03-03 05:21:32 C 09 56 17.17 +33 48 35.0 v H01
2009-03-03 05:25:37 C 09 56 20.76 +33 47 44.5 v H01
2009-03-16 02:13:43 C 12 17 32.71 -10 35 26.2 r J95
2009-03-16 02:20:04 C 12 17 33.70 -10 35 49.4 r J95
2009-03-16 02:25:22 C 12 17 34.54 -10 36 10.2 r J95