2017 SM21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3746795000
Semi-major axis (a)1.5797496000 AU
Inclination (i)13.74824000°
Long. of Asc. Node (Ω)2.25231000°
Arg. of Perihelion (ω)334.53517000°
Mean Anomaly (M)47.03127000°
Mean Motion (n)0.4963884600°/day
Perihelion dist (q)0.98784980 AU
Aphelion dist (Q)2.17164940 AU
Orbital Period1.98555710 yr
Physical Parameters
H (abs. magnitude)26.33
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.670″
Uncertainty7
Orbit TypeApollo
MOID0.008818 AU
Observations Used17
Oppositions1
Arc Total
First Observation Used
Last Observation Used2017-10-03
Observations (19)
Date Type RA Dec Mag Band Observatory
2017-09-28 05:53:20 C 22 24 28.68 +20 19 39.8 V 703
2017-09-28 06:01:46 C 22 24 32.71 +20 23 17.1 V 703
2017-09-29 09:28:53 C 22 38 32.338 +30 06 34.94 V F51
2017-09-29 10:40:16 C 22 38 57.557 +30 26 14.31 V F51
2017-09-30 07:02:33 C 22 47 36.615 +35 18 34.02 L F51
2017-09-30 07:36:14 C 22 47 46.188 +35 25 34.01 L F51
2017-09-30 07:53:11 C 22 47 50.898 +35 29 02.10 L F51
2017-10-01 03:34:54 C 22 54 42.33 +38 58 19.3 o 926
2017-10-01 03:40:01 C 22 54 43.63 +38 59 08.8 o 926
2017-10-01 03:45:09 C 22 54 44.91 +38 59 58.2 o 926
2017-10-02 06:41:30 C 23 02 18.89 +42 33 38.7 o 926
2017-10-02 06:47:12 C 23 02 19.98 +42 34 16.0 o 926
2017-10-02 06:52:52 C 23 02 21.11 +42 34 53.3 o 926
2017-10-02 09:31:34 C 23 02 53.91 +42 51 31.2 o 291
2017-10-02 09:38:54 C 23 02 55.54 +42 52 15.7 o 291
2017-10-03 02:24:14 C 23 07 25.45 +44 31 46.4 o 695
2017-10-03 02:29:06 C 23 07 26.37 +44 32 14.6 o 695
2017-10-03 03:08:22 C 23 07 33.49 +44 36 01.1 o 926
2017-10-03 03:19:50 C 23 07 35.47 +44 37 06.3 o 926