523654 (2011 SR5)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7057247282 ± 6.97e-08
Semi-major axis (a)1.1781912557 AU ± 3.94e-09
Inclination (i)29.13018658° ± 1.46e-05
Long. of Asc. Node (Ω)180.09241870° ± 1.93e-06
Arg. of Perihelion (ω)305.55922990° ± 7.39e-06
Mean Anomaly (M)345.21036185° ± 1.89e-05
Mean Motion (n)0.7707057221°/day ± 3.86e-09
Perihelion dist (q)0.34671255 AU ± 8.21e-08
Aphelion dist (Q)2.00966996 AU ± 8.24e-08
Orbital Period1.27886203 yr ± 6.41e-09
Physical Parameters
H (abs. magnitude)20.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.359″
Uncertainty0
Orbit TypeApollo
MOID0.000969 AU
Observations Used227
Oppositions3
Arc Total2011-2025
First Observation Used2011-09-19
Last Observation Used2025-09-14
Observations (236)
Date Type RA Dec Mag Band Observatory
2011-09-22 02:09:43 C 21 41 21.01 +13 41 39.9 o H21
2011-09-22 02:14:24 C 21 41 15.67 +13 40 47.8 o H21
2011-09-22 02:19:03 C 21 41 10.38 +13 39 56.4 o H21
2011-09-22 02:23:04 C 21 41 05.79 +13 39 11.9 o H21
2011-09-22 02:27:04 C 21 41 01.21 +13 38 27.3 o H21
2011-09-22 02:30:32 C 21 40 57.25 +13 37 48.8 o H21
2011-09-22 03:36:46 C 21 39 43.63 +13 25 37.5 r 703
2011-09-22 03:49:56 C 21 39 28.44 +13 23 09.2 r 703
2011-09-22 04:02:46 C 21 39 13.53 +13 20 44.1 r 703
2011-09-22 04:15:47 C 21 38 58.38 +13 18 16.3 r 703
2011-09-22 04:28:42 C 21 38 43.36 +13 15 49.1 r 703
2011-09-22 19:38:58 C 21 20 17.67 +10 05 32.7 u 160
2011-09-22 19:40:54 C 21 20 15.09 +10 05 06.1 u 160
2011-09-22 19:42:52 C 21 20 12.50 +10 04 39.3 u 160
2011-09-22 19:57:44 C 21 19 52.82 +10 01 13.5 c A53
2011-09-22 19:58:54 C 21 19 51.28 +10 00 57.5 c A53
2011-09-22 20:00:07 C 21 19 49.65 +10 00 40.3 c A53
2011-09-22 20:01:20 C 21 19 48.00 +10 00 23.7 c A53
2011-09-22 20:02:35 C 21 19 46.41 +10 00 06.8 c A53
2011-09-22 20:02:55 C 21 19 45.91 +10 00 02.2 c A48
2011-09-22 20:03:54 C 21 19 44.61 +09 59 48.6 c A48
2011-09-22 20:04:53 C 21 19 43.31 +09 59 35.3 c A48
2011-09-22 20:05:53 C 21 19 42.01 +09 59 21.7 c A48
2011-09-22 20:57:08 C 21 18 33.85 +09 47 33.5 c A24
2011-09-22 20:58:16 C 21 18 32.40 +09 47 18.1 c A24
2011-09-22 21:42:30 C 21 17 32.95 +09 37 00.9 r 130
2011-09-22 21:43:11 C 21 17 32.05 +09 36 51.7 r 130
2011-09-22 21:43:37 C 21 17 31.45 +09 36 45.6 r 130
2011-09-22 21:44:30 C 21 17 30.27 +09 36 32.8 r 130
2011-09-22 22:25:19 C 21 16 35.42 +09 26 59.8 c A24
2011-09-22 22:26:24 C 21 16 33.94 +09 26 44.4 c A24
2011-09-23 05:35:02 C 21 06 46.54 +07 42 05.1 r H21
2011-09-23 05:37:12 C 21 06 43.45 +07 41 32.2 r H21
2011-09-23 05:39:21 C 21 06 40.35 +07 40 59.3 r H21
2011-09-23 05:43:40 C 21 06 34.16 +07 39 53.1 r H21
2011-09-23 05:48:13 C 21 06 27.67 +07 38 43.5 r H21
2011-09-23 09:40:56 C 21 01 02.75 +06 40 56.3 u D90
2011-09-23 09:48:11 C 21 00 51.88 +06 39 00.3 u D90
2011-09-23 10:08:47 C 21 00 21.33 +06 33 33.7 u D90
2011-09-23 10:16:02 C 21 00 10.46 +06 31 37.6 u D90
2011-09-23 19:16:30 C 20 46 31.64 +03 58 08.6 u 151
2011-09-23 19:18:02 C 20 46 29.23 +03 57 42.0 u 151
2011-09-23 19:19:32 C 20 46 26.82 +03 57 15.4 u 151
2011-09-23 19:26:16 C 20 46 16.09 +03 55 18.1 u 151
2011-09-23 20:01:33 C 20 45 19.49 +03 45 08.2 u 160
2011-09-23 20:04:39 C 20 45 14.50 +03 44 13.5 u 160
2011-09-23 20:07:27 C 20 45 10.03 +03 43 24.7 u 160
2011-09-23 21:26:12 C 20 43 04.66 +03 20 00.6 u J95
2011-09-23 21:28:35 C 20 43 00.81 +03 19 18.3 u J95
2011-09-23 21:32:15 C 20 42 54.87 +03 18 13.1 u J95