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
2016-08-03 06:25:31 C 22 17 43.47 +25 30 50.4 u H21
2016-08-03 06:34:17 C 22 17 42.81 +25 30 49.9 u H21
2016-08-03 06:55:36 C 22 17 41.20 +25 30 48.6 u H21
2016-08-03 07:15:10 C 22 17 39.69 +25 30 47.4 u H21
2016-08-23 03:47:31 C 21 30 56.03 +22 13 09.6 u H21
2016-08-23 04:25:52 C 21 30 51.37 +22 12 37.8 u H21
2016-08-23 05:05:02 C 21 30 46.63 +22 12 04.6 u H21
2016-08-28 10:42:35 C 21 15 45.12 +20 11 52.6 o 291
2016-08-28 10:49:03 C 21 15 44.29 +20 11 44.9 o 291
2016-08-28 10:55:30 C 21 15 43.52 +20 11 38.3 o 291
2016-08-30 10:17:35 C 21 09 58.81 +19 18 24.8 o 291
2016-08-30 10:23:57 C 21 09 58.09 +19 18 16.8 o 291
2018-05-20 09:26:19 C 23 37 49.55 +72 14 57.3 o 291
2018-05-20 09:53:42 C 23 37 27.97 +72 16 04.1 o 291
2018-06-14 04:45:09 C 17 21 20.58 +62 47 41.5 u H21
2018-06-14 05:38:56 C 17 21 09.30 +62 45 41.9 u H21
2018-06-14 05:46:53 C 17 21 07.76 +62 45 23.0 u H21
2018-06-16 05:58:59 C 17 12 11.09 +60 56 51.1 u H21
2018-06-16 06:20:23 C 17 12 07.35 +60 56 02.3 u H21
2018-06-16 06:44:50 C 17 12 02.96 +60 55 07.2 u H21
2020-08-28 10:15:23 C 03 10 28.32 +29 48 54.4 V G96
2020-08-28 10:22:48 C 03 10 30.82 +29 48 53.6 V G96
2020-08-28 10:30:12 C 03 10 33.31 +29 48 52.2 V G96
2020-08-28 10:37:36 C 03 10 35.72 +29 48 51.8 V G96
2020-09-06 07:50:58 S 04 51 35.652 +26 27 55.91 L C51
2020-09-06 10:59:17 S 04 53 34.205 +26 20 55.25 L C51
2020-09-06 12:33:32 S 04 54 33.742 +26 17 19.82 L C51
2020-09-06 15:41:51 S 04 56 33.518 +26 10 02.78 L C51
2020-09-06 15:42:02 S 04 56 33.646 +26 10 02.78 L C51
2025-08-24 12:23:10 C 22 15 36.725 +24 28 00.90 X F52
2025-08-24 12:41:36 C 22 15 34.392 +24 27 48.15 X F52
2025-08-24 13:00:03 C 22 15 32.085 +24 27 35.72 X F52
2025-08-24 13:18:34 C 22 15 29.744 +24 27 23.21 X F52
2025-09-14 08:57:52 C 21 00 08.828 +12 56 03.35 X F51
2025-09-14 09:05:39 C 21 00 07.518 +12 55 46.82 X F51
2025-09-14 09:21:14 C 21 00 04.862 +12 55 13.56 X F51