2020 SY4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6138867889
Semi-major axis (a)1.8758281936 AU
Inclination (i)0.57239113° ± 4.00e+00
Long. of Asc. Node (Ω)195.30370236° ± 5.00e+00
Arg. of Perihelion (ω)244.95910844° ± 6.00e+00
Mean Anomaly (M)343.14921679°
Mean Motion (n)0.3836331300°/day
Perihelion dist (q)0.72428170 AU
Aphelion dist (Q)3.02736530 AU
Orbital Period2.56914110 yr
Physical Parameters
H (abs. magnitude)27.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.262″
Uncertainty
Orbit TypeApollo
MOID0.001644 AU
Observations Used36
Oppositions1
Arc Total2020-2020
First Observation Used
Last Observation Used2020-09-28
Observations (36)
Date Type RA Dec Mag Band Observatory
2020-09-22 09:09:29 C 00 01 34.81 +03 04 04.7 V G96
2020-09-22 09:17:33 C 00 01 35.32 +03 04 14.6 V G96
2020-09-22 09:25:38 C 00 01 35.79 +03 04 24.5 V G96
2020-09-25 04:24:12 C 00 12 27.94 +05 31 09.4 V G96
2020-09-25 04:32:16 C 00 12 29.87 +05 31 41.3 V G96
2020-09-25 04:40:21 C 00 12 31.77 +05 32 13.2 V G96
2020-09-25 07:15:16 C 00 13 07.91 +05 42 39.0 V I52
2020-09-25 07:16:23 C 00 13 08.15 +05 42 43.3 V I52
2020-09-25 07:17:29 C 00 13 08.43 +05 42 48.7 V I52
2020-09-25 07:18:35 C 00 13 08.72 +05 42 52.8 V I52
2020-09-25 11:07:58 C 00 14 17.772 +06 00 19.72 U F52
2020-09-25 11:24:44 C 00 14 22.088 +06 01 35.62 U F52
2020-09-25 11:41:31 C 00 14 26.425 +06 02 51.52 U F52
2020-09-25 11:58:15 C 00 14 30.869 +06 04 08.52 U F52
2020-09-25 20:13:56 C 00 17 57.27 +06 44 14.4 V J95
2020-09-25 20:32:02 C 00 18 04.45 +06 45 59.7 V J95
2020-09-25 20:50:23 C 00 18 11.69 +06 47 47.0 V J95
2020-09-26 06:25:11 C 00 22 53.33 +07 53 50.9 V G96
2020-09-26 06:32:07 C 00 22 56.72 +07 54 45.3 V G96
2020-09-26 06:39:04 C 00 23 00.13 +07 55 39.4 V G96
2020-09-26 06:46:02 C 00 23 03.56 +07 56 34.1 V G96
2020-09-26 08:05:32 C 00 23 45.86 +08 07 06.6 V I41
2020-09-26 08:59:13 C 00 24 14.04 +08 14 30.3 V I41
2020-09-27 08:06:45 C 00 48 16.60 +13 27 27.5 V I41
2020-09-27 08:07:15 C 00 48 17.38 +13 27 38.4 V I41
2020-09-27 08:08:06 C 00 48 18.67 +13 27 56.9 V I41
2020-09-27 08:08:36 C 00 48 19.46 +13 28 07.8 V I41
2020-09-27 20:53:28 C 01 22 02.26 +19 59 45.3 V J95
2020-09-27 20:55:43 C 01 22 11.07 +20 01 26.9 V J95
2020-09-27 20:58:38 C 01 22 22.44 +20 03 37.9 V J95
2020-09-27 21:00:55 C 01 22 31.40 +20 05 21.4 V J95
2020-09-27 21:58:16 C 01 26 21.46 +20 51 35.9 V 204
2020-09-27 22:00:23 C 01 26 30.27 +20 53 17.4 V 204
2020-09-27 22:02:30 C 01 26 39.12 +20 54 59.4 V 204
2020-09-28 06:53:19 C 02 26 09.35 +30 20 39.1 V I41
2020-09-28 06:53:49 C 02 26 14.30 +30 21 20.5 V I41