877915 (2011 ME)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7271238481 ± 6.74e-08
Semi-major axis (a)1.3541709367 AU ± 1.92e-09
Inclination (i)24.84644231° ± 1.48e-05
Long. of Asc. Node (Ω)234.35811151° ± 1.74e-05
Arg. of Perihelion (ω)166.88299056° ± 1.84e-05
Mean Anomaly (M)13.40136252° ± 8.71e-06
Mean Motion (n)0.6254636042°/day ± 1.33e-09
Perihelion dist (q)0.36952095 AU ± 9.13e-08
Aphelion dist (Q)2.33882092 AU ± 9.13e-08
Orbital Period1.57583315 yr ± 3.35e-09
Physical Parameters
H (abs. magnitude)19.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.243″
Uncertainty0
Orbit TypeApollo
MOID0.307664 AU
Observations Used154
Oppositions5
Arc Total2010-2025
First Observation Used2010-03-26
Last Observation Used2025-07-15
Observations (160)
Date Type RA Dec Mag Band Observatory
2011-06-28 22:01:45 C 16 27 03.22 +51 26 44.3 o A17
2011-06-29 04:20:18 C 16 24 11.91 +51 51 49.5 o H21
2011-06-29 04:24:21 C 16 24 10.03 +51 52 05.3 o H21
2011-06-29 04:28:24 C 16 24 08.13 +51 52 21.1 o H21
2011-06-29 04:32:27 C 16 24 06.23 +51 52 36.9 o H21
2011-06-29 04:36:29 C 16 24 04.34 +51 52 52.9 o H21
2011-06-30 05:33:21 C 16 12 14.43 +53 28 43.7 o H21
2011-06-30 05:42:26 C 16 12 09.89 +53 29 17.4 o H21
2011-06-30 05:46:55 C 16 12 07.65 +53 29 34.2 o H21
2011-06-30 05:51:24 C 16 12 05.43 +53 29 50.5 o H21
2011-07-02 03:33:09 C 15 48 12.59 +56 11 03.8 o H21
2011-07-02 03:37:13 C 15 48 10.30 +56 11 17.1 o H21
2011-07-02 03:41:08 C 15 48 08.05 +56 11 30.1 o H21
2011-07-02 03:45:09 C 15 48 05.79 +56 11 43.3 o H21
2011-07-03 07:37:56 C 15 32 03.37 +57 39 13.9 t G58
2011-07-03 07:42:13 C 15 32 00.83 +57 39 26.2 t G58
2011-07-03 07:46:29 C 15 31 58.25 +57 39 39.0 t G58
2011-07-05 03:56:00 C 15 04 28.67 +59 38 57.7 u H36
2011-07-05 04:11:37 C 15 04 18.37 +59 39 34.9 u H36
2011-07-05 04:27:11 C 15 04 08.05 +59 40 11.9 u H36
2011-07-06 04:08:48 C 14 48 23.37 +60 33 17.0 o H21
2011-07-06 04:18:21 C 14 48 16.80 +60 33 36.6 o H21
2011-07-06 04:24:42 C 14 48 12.45 +60 33 49.3 o H21
2011-07-07 03:04:04 C 14 32 38.25 +61 17 05.4 c H21
2011-07-07 03:13:10 C 14 32 31.72 +61 17 21.5 c H21
2011-07-07 03:25:27 C 14 32 23.02 +61 17 42.4 c H21
2011-07-09 04:11:58 C 13 57 35.33 +62 24 53.9 o H21
2011-07-09 04:22:34 C 13 57 27.54 +62 25 03.8 o H21
2011-07-09 04:33:11 C 13 57 19.78 +62 25 13.9 o H21
2011-07-09 04:43:47 C 13 57 12.06 +62 25 24.0 o H21
2011-07-11 03:19:24 C 13 23 25.24 +62 56 43.9 u H36
2011-07-11 03:44:44 C 13 23 07.11 +62 56 50.1 u H36
2011-07-11 04:10:43 C 13 22 47.74 +62 56 56.8 u H36
2011-07-12 03:01:15 C 13 06 25.32 +63 00 49.0 t H21
2011-07-12 03:10:17 C 13 06 18.80 +63 00 48.4 t H21
2011-07-12 03:19:18 C 13 06 12.41 +63 00 48.0 t H21
2014-05-28 09:02:24 C 16 01 51.948 -11 14 43.32 L F51
2014-05-28 09:39:00 C 16 01 47.982 -11 14 12.56 L F51
2014-05-28 09:57:17 C 16 01 45.985 -11 13 56.86 L F51
2014-05-29 12:32:11 C 15 58 56.05 -10 51 21.5 21.3 t 568
2014-05-29 12:34:00 C 15 58 55.85 -10 51 19.9 21.1 t 568
2014-05-29 12:35:52 C 15 58 55.65 -10 51 18.4 21.0 t 568
2014-05-30 08:58:50 C 15 56 45.19 -10 33 55.7 o 291
2014-05-30 09:02:31 C 15 56 44.74 -10 33 52.8 o 291
2014-05-30 09:06:12 C 15 56 44.37 -10 33 49.5 o 291
2014-06-01 03:20:00 C 15 52 13.00 -09 57 26.7 u 807
2014-06-01 03:28:28 C 15 52 12.04 -09 57 19.1 u 807
2014-06-01 03:36:45 C 15 52 11.10 -09 57 11.9 u 807
2014-06-01 04:01:35 C 15 52 08.73 -09 57 01.0 t H01
2014-06-01 04:07:51 C 15 52 08.05 -09 56 55.7 t H01