2017 SA21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5824213000
Semi-major axis (a)2.3107999000 AU
Inclination (i)4.22175000°
Long. of Asc. Node (Ω)185.29600000°
Arg. of Perihelion (ω)152.45445000°
Mean Anomaly (M)121.84787000°
Mean Motion (n)0.2805824900°/day
Perihelion dist (q)0.96494080 AU
Aphelion dist (Q)3.65665900 AU
Orbital Period3.51271980 yr
Physical Parameters
H (abs. magnitude)28.20
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.380″
Uncertainty6
Orbit TypeApollo
MOID0.001165 AU
Observations Used30
Oppositions1
Arc Total
First Observation Used
Last Observation Used2017-10-01
Observations (32)
Date Type RA Dec Mag Band Observatory
2017-09-29 08:12:16 C 02 12 58.42 +06 45 49.0 q 703
2017-09-29 08:21:18 C 02 13 09.38 +06 45 08.3 q 703
2017-09-29 08:34:23 C 02 13 25.11 +06 44 08.4 q 703
2017-09-29 08:56:08 C 02 13 50.80 +06 42 32.5 q 703
2017-09-29 08:57:39 C 02 13 52.72 +06 42 22.9 q 703
2017-09-29 08:58:24 C 02 13 53.67 +06 42 19.1 q 703
2017-09-29 10:05:20 C 02 15 10.77 +06 37 20.7 q 703
2017-09-29 10:06:50 C 02 15 12.49 +06 37 15.1 q 703
2017-09-29 13:46:59 C 02 19 33.007 +06 24 13.83 L F51
2017-09-29 14:04:44 C 02 19 50.348 +06 23 02.78 L F51
2017-09-29 14:22:25 C 02 20 07.576 +06 21 52.32 L F51
2017-09-30 09:13:07 C 02 36 19.12 +05 25 20.4 o 926
2017-09-30 09:18:38 C 02 36 21.95 +05 25 08.1 o 926
2017-09-30 09:24:07 C 02 36 24.72 +05 24 55.5 o 926
2017-09-30 09:40:53 C 02 36 33.22 +05 24 11.0 q G96
2017-09-30 09:42:01 C 02 36 33.83 +05 24 08.6 q G96
2017-09-30 09:43:09 C 02 36 34.39 +05 24 06.2 q G96
2017-09-30 11:31:17 C 02 37 28.34 +05 20 15.3 o 926
2017-09-30 11:35:45 C 02 37 30.57 +05 20 04.8 o 926
2017-09-30 11:40:18 C 02 37 32.85 +05 19 55.0 o 926
2017-09-30 12:03:29 C 02 38 04.514 +05 20 35.65 L F51
2017-09-30 12:38:26 C 02 38 20.391 +05 19 23.11 L F51
2017-09-30 12:55:58 C 02 38 28.317 +05 18 46.59 L F51
2017-10-01 07:28:15 C 02 47 11.01 +04 45 51.6 u H21
2017-10-01 07:37:30 C 02 47 22.28 +04 46 18.2 o 291
2017-10-01 07:39:09 C 02 47 14.16 +04 45 36.9 u H21
2017-10-01 07:49:07 C 02 47 25.60 +04 46 03.5 o 291
2017-10-01 07:54:24 C 02 47 18.58 +04 45 16.8 u H21
2017-10-01 08:00:42 C 02 47 28.92 +04 45 48.5 o 291
2017-10-01 08:26:18 C 02 47 35.94 +04 45 18.2 o 926
2017-10-01 08:34:09 C 02 47 38.10 +04 45 07.8 o 926
2017-10-01 08:42:00 C 02 47 40.25 +04 44 57.8 o 926