2017 SK21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5064689000
Semi-major axis (a)1.0236528000 AU
Inclination (i)36.67642000°
Long. of Asc. Node (Ω)354.46376000°
Arg. of Perihelion (ω)229.39421000°
Mean Anomaly (M)43.81752000°
Mean Motion (n)0.9516452500°/day
Perihelion dist (q)0.50520450 AU
Aphelion dist (Q)1.54210110 AU
Orbital Period1.03568820 yr
Physical Parameters
H (abs. magnitude)22.30
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.230″
Uncertainty8
Orbit TypeApollo
MOID0.088467 AU
Observations Used20
Oppositions1
Arc Total
First Observation Used
Last Observation Used2017-10-03
Observations (20)
Date Type RA Dec Mag Band Observatory
2017-09-25 08:03:52 C 23 21 10.642 +26 05 51.47 L F51
2017-09-25 08:19:53 C 23 21 05.087 +26 05 55.09 L F51
2017-09-25 08:52:15 C 23 20 53.865 +26 06 02.04 L F51
2017-09-26 02:42:39 C 23 15 02.94 +26 08 38.9 u H21
2017-09-26 02:56:47 C 23 14 58.30 +26 08 41.1 u H21
2017-09-26 03:12:33 C 23 14 53.17 +26 08 43.2 u H21
2017-09-26 05:04:44 C 23 14 17.30 +26 09 00.5 o 926
2017-09-26 05:10:26 C 23 14 15.48 +26 09 01.9 o 926
2017-09-26 05:16:05 C 23 14 13.58 +26 09 02.3 o 926
2017-09-27 02:59:59 C 23 07 32.51 +26 10 21.2 u H21
2017-09-27 03:15:29 C 23 07 27.78 +26 10 21.7 u H21
2017-09-27 03:37:41 C 23 07 21.02 +26 10 22.5 u H21
2017-09-29 03:56:31 C 22 53 58.60 +26 07 43.5 u H21
2017-09-29 04:10:50 C 22 53 54.79 +26 07 41.5 u H21
2017-09-29 04:24:00 C 22 53 51.33 +26 07 40.4 u H21
2017-10-02 02:52:20 C 22 37 39.95 +25 53 58.8 o 695
2017-10-02 03:06:45 C 22 37 36.92 +25 53 55.6 o 695
2017-10-02 03:21:10 C 22 37 33.87 +25 53 52.1 o 695
2017-10-03 04:51:45 C 22 32 32.22 +25 47 02.4 o 695
2017-10-03 05:02:43 C 22 32 30.08 +25 46 59.3 o 695