2017 SP21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1388133399 ± 2.84e-05
Semi-major axis (a)0.9803844216 AU ± 8.88e-06
Inclination (i)11.20512215° ± 2.38e-03
Long. of Asc. Node (Ω)188.12765668° ± 6.16e-05
Arg. of Perihelion (ω)69.30850278° ± 3.60e-03
Mean Anomaly (M)232.05628881° ± 4.86e-02
Mean Motion (n)1.0153544433°/day ± 1.38e-05
Perihelion dist (q)0.84429399 AU ± 2.88e-05
Aphelion dist (Q)1.11647486 AU ± 2.96e-05
Orbital Period0.97072140 yr ± 1.32e-05
Physical Parameters
H (abs. magnitude)27.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.381″
Uncertainty2
Orbit TypeAten
MOID0.006457 AU
Observations Used31
Oppositions1
Arc Total2017-2017
First Observation Used2017-09-30
Last Observation Used2017-10-02
Observations (31)
Date Type RA Dec Mag Band Observatory
2017-09-30 11:14:12 C 00 40 09.48 +29 01 07.4 q G96
2017-09-30 11:14:47 C 00 40 09.66 +29 00 25.0 q G96
2017-09-30 11:15:23 C 00 40 09.90 +28 59 43.2 q G96
2017-09-30 11:45:35 C 00 40 21.26 +28 24 58.9 q G96
2017-09-30 11:46:05 C 00 40 21.44 +28 24 26.3 q G96
2017-09-30 11:46:34 C 00 40 21.64 +28 23 49.8 q G96
2017-09-30 11:47:04 C 00 40 21.84 +28 23 15.1 q G96
2017-09-30 21:53:19 C 00 45 51.44 +17 38 37.0 17.4 o K88
2017-09-30 21:57:15 C 00 45 52.15 +17 34 44.3 17.7 o K88
2017-09-30 22:01:11 C 00 45 52.83 +17 30 50.4 17.5 o K88
2017-10-01 02:31:36 C 00 48 09.69 +13 14 06.3 q G96
2017-10-01 02:32:17 C 00 48 09.92 +13 13 28.2 q G96
2017-10-01 02:32:59 C 00 48 10.04 +13 12 50.8 q G96
2017-10-01 02:34:03 C 00 48 10.44 +13 11 53.7 q G96
2017-10-01 06:13:07 C 00 48 26.43 +09 57 14.9 u H21
2017-10-01 06:16:21 C 00 48 26.76 +09 54 28.4 u H21
2017-10-01 06:20:12 C 00 48 27.17 +09 51 09.5 u H21
2017-10-01 06:24:04 C 00 48 27.57 +09 47 50.1 u H21
2017-10-01 06:27:55 C 00 48 27.96 +09 44 31.3 u H21
2017-10-01 06:31:47 C 00 48 28.36 +09 41 12.4 u H21
2017-10-01 06:35:39 C 00 48 28.77 +09 37 53.7 u H21
2017-10-01 06:40:09 C 00 48 29.23 +09 34 01.9 u H21
2017-10-01 21:32:58 C 00 52 40.23 -01 28 22.9 q 595
2017-10-01 21:37:54 C 00 52 40.65 -01 31 31.2 q 595
2017-10-01 21:45:14 C 00 52 41.23 -01 36 09.5 q 595
2017-10-01 23:32:41 C 00 52 44.32 -02 43 03.7 18.5 o K88
2017-10-01 23:37:15 C 00 52 44.65 -02 45 50.2 18.5 o K88
2017-10-01 23:41:49 C 00 52 44.99 -02 48 36.1 18.6 o K88
2017-10-02 04:54:08 C 00 54 19.96 -05 45 34.2 o 926
2017-10-02 04:55:56 C 00 54 20.06 -05 46 33.3 o 926
2017-10-02 04:57:45 C 00 54 20.14 -05 47 33.4 o 926