2017 ST20

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1716889618 ± 5.68e-08
Semi-major axis (a)1.3126793709 AU ± 2.01e-09
Inclination (i)15.42017443° ± 6.91e-06
Long. of Asc. Node (Ω)188.63654197° ± 6.75e-06
Arg. of Perihelion (ω)268.55032951° ± 3.25e-05
Mean Anomaly (M)86.78785908° ± 2.45e-05
Mean Motion (n)0.6553514819°/day ± 1.51e-09
Perihelion dist (q)1.08730681 AU ± 7.45e-08
Aphelion dist (Q)1.53805193 AU ± 7.46e-08
Orbital Period1.50396590 yr ± 3.46e-09
Physical Parameters
H (abs. magnitude)22.63
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.210″
Uncertainty0
Orbit TypeAmor
MOID0.224045 AU
Observations Used118
Oppositions3
Arc Total2014-2023
First Observation Used2014-09-23
Last Observation Used2023-10-16
Observations (121)
Date Type RA Dec Mag Band Observatory
2014-09-23 12:15:03 C 03 19 41.276 +14 17 05.11 V F51
2014-09-23 12:33:19 C 03 19 42.891 +14 16 37.28 V F51
2014-09-23 12:51:36 C 03 19 44.576 +14 16 09.58 V F51
2014-09-23 13:10:05 C 03 19 46.248 +14 15 41.44 V F51
2014-10-03 12:19:32 C 03 42 15.026 +06 54 48.70 V F51
2014-10-03 12:37:14 C 03 42 16.511 +06 54 10.06 V F51
2017-09-23 10:47:54 C 02 54 38.919 +14 05 20.87 L F51
2017-09-23 11:03:46 C 02 54 40.081 +14 04 55.80 L F51
2017-09-23 11:19:36 C 02 54 41.204 +14 04 30.50 L F51
2017-09-24 08:05:54 C 02 56 18.12 +13 30 18.8 u H21
2017-09-24 08:17:17 C 02 56 18.94 +13 29 59.7 u H21
2017-09-24 08:26:11 C 02 56 19.56 +13 29 44.7 u H21
2017-09-24 08:39:21 C 02 56 20.51 +13 29 22.8 u H21
2017-09-24 09:31:15 C 02 56 24.85 +13 27 59.0 o 291
2017-09-24 09:42:01 C 02 56 25.62 +13 27 41.5 o 291
2017-09-24 09:52:48 C 02 56 26.40 +13 27 23.1 o 291
2017-09-26 08:16:30 C 03 00 00.88 +12 06 32.0 u H21
2017-09-26 08:27:35 C 03 00 01.65 +12 06 11.9 u H21
2017-09-26 08:34:00 C 03 00 02.10 +12 06 00.4 u H21
2017-09-26 11:16:03 C 03 00 13.97 +12 01 09.8 o 291
2017-09-26 11:22:48 C 03 00 14.45 +12 00 57.7 o 291
2017-09-26 11:29:35 C 03 00 14.91 +12 00 44.9 o 291
2017-10-01 07:07:02 C 03 08 50.01 +08 10 39.4 o 291
2017-10-01 07:16:20 C 03 08 50.63 +08 10 19.3 o 291
2017-10-01 07:25:37 C 03 08 51.22 +08 09 59.1 o 291
2017-10-01 08:51:36 C 03 08 56.81 +08 06 54.1 o 926
2017-10-01 09:02:45 C 03 08 57.50 +08 06 29.8 o 926
2017-10-01 09:13:57 C 03 08 58.27 +08 06 05.5 o 926
2017-10-19 09:47:48 C 03 35 16.18 -11 35 03.6 U G96
2017-10-19 09:55:21 C 03 35 16.47 -11 35 26.1 U G96
2017-10-19 10:02:54 C 03 35 16.77 -11 35 49.7 U G96
2017-10-19 10:10:28 C 03 35 17.07 -11 36 13.2 U G96
2017-10-19 15:34:21 C 03 35 32.61 -11 52 16.9 U 474
2017-10-19 15:37:45 C 03 35 32.76 -11 52 27.3 U 474
2017-10-19 15:41:09 C 03 35 32.88 -11 52 37.8 U 474
2017-10-20 09:06:05 C 03 36 22.87 -12 47 45.1 U I52
2017-10-20 09:11:17 C 03 36 23.06 -12 48 01.4 U I52
2017-10-20 09:16:28 C 03 36 23.26 -12 48 17.7 U I52
2017-10-20 09:22:20 C 03 36 23.48 -12 48 35.7 U I52
2017-10-28 13:00:23 C 03 44 21.26 -22 50 41.1 U 474
2017-10-28 13:07:11 C 03 44 21.45 -22 51 01.4 U 474
2017-10-28 13:16:14 C 03 44 21.70 -22 51 28.8 U 474
2017-11-12 05:26:50 C 03 53 24.36 -37 45 03.8 u 807
2017-11-12 05:36:55 C 03 53 24.44 -37 45 24.3 u 807
2017-11-12 05:46:58 C 03 53 24.49 -37 45 44.9 u 807
2017-11-16 12:42:32 C 03 55 04.17 -40 56 45.4 U 474
2017-11-16 12:47:36 C 03 55 04.13 -40 56 54.7 U 474
2017-11-16 12:52:40 C 03 55 04.22 -40 57 02.4 U 474
2017-11-16 12:58:15 C 03 55 04.22 -40 57 12.5 U 474
2017-11-23 03:20:41 C 03 57 13.73 -44 48 09.1 U 807