2021 SY1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5021494754 ± 7.41e-08
Semi-major axis (a)2.0783176592 AU ± 7.75e-09
Inclination (i)6.27552754° ± 7.85e-06
Long. of Asc. Node (Ω)189.70280337° ± 7.64e-06
Arg. of Perihelion (ω)154.35159239° ± 6.14e-05
Mean Anomaly (M)143.92181013° ± 1.66e-05
Mean Motion (n)0.3289609783°/day ± 1.84e-09
Perihelion dist (q)1.03469154 AU ± 1.54e-07
Aphelion dist (Q)3.12194378 AU ± 1.54e-07
Orbital Period2.99617994 yr ± 1.68e-08
Physical Parameters
H (abs. magnitude)24.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.288″
Uncertainty0
Orbit TypeAmor
MOID0.044552 AU
Observations Used81
Oppositions2
Arc Total2021-2024
First Observation Used2021-09-28
Last Observation Used2024-10-10
Observations (87)
Date Type RA Dec Mag Band Observatory
2024-09-24 10:35:44 C 23 08 47.530 +15 46 13.91 V 474
2024-09-25 19:36:24 C 23 34 32.56 +13 59 25.7 X L51
2024-09-25 19:37:54 C 23 34 33.61 +13 59 21.1 X L51
2024-09-25 19:39:23 C 23 34 34.67 +13 59 16.6 X L51
2024-09-25 21:15:29 C 23 35 42.60 +13 54 14.0 X L51
2024-09-25 21:17:58 C 23 35 44.37 +13 54 06.1 X L51
2024-09-25 21:20:12 C 23 35 45.94 +13 53 59.0 X L51
2024-09-27 06:26:48 C 23 58 57.947 +12 10 03.86 V G96
2024-09-27 06:35:02 C 23 59 03.073 +12 09 38.38 V G96
2024-09-27 06:43:19 C 23 59 08.203 +12 09 12.60 V G96
2024-09-27 06:51:33 C 23 59 13.326 +12 08 46.97 V G96
2024-10-01 09:52:30 C 00 53 14.005 +07 29 14.73 X F52
2024-10-01 10:08:53 C 00 53 20.623 +07 28 34.65 X F52
2024-10-01 10:25:17 C 00 53 27.354 +07 27 53.83 X F52
2024-10-01 10:41:43 C 00 53 33.960 +07 27 13.53 X F52
2024-10-02 05:52:47 C 01 01 43.256 +06 40 58.83 U I41
2024-10-02 05:55:47 C 01 01 44.347 +06 40 52.69 U I41
2024-10-02 08:06:50 C 01 02 33.195 +06 35 53.44 U I41
2024-10-02 08:09:50 C 01 02 34.331 +06 35 46.72 U I41
2024-10-02 16:11:18 C 01 05 44.52 +06 17 39.0 V D29
2024-10-02 16:31:40 C 01 05 51.76 +06 16 53.5 V D29
2024-10-02 16:52:02 C 01 05 59.06 +06 16 08.3 V D29
2024-10-03 16:41:16 C 01 14 43.59 +05 25 20.5 V D29
2024-10-03 16:47:38 C 01 14 45.52 +05 25 06.4 V D29
2024-10-03 17:01:38 C 01 14 50.15 +05 24 39.0 V D29
2024-10-03 17:08:00 C 01 14 52.11 +05 24 26.1 V D29
2024-10-03 17:22:00 C 01 14 56.57 +05 23 57.4 V D29
2024-10-03 17:28:21 C 01 14 58.66 +05 23 44.6 V D29
2024-10-04 21:02:55 B 01 24 05.899 +04 32 00.60 X L87
2024-10-04 21:12:36 B 01 24 08.647 +04 31 42.74 X L87
2024-10-05 07:00:28 C 01 27 03.949 +04 12 21.31 V G96
2024-10-05 07:07:54 C 01 27 05.972 +04 12 08.21 V G96
2024-10-05 07:15:21 C 01 27 07.974 +04 11 55.07 V G96
2024-10-10 10:54:27 C 01 55 43.165 +01 18 08.86 X F52
2024-10-10 11:11:56 C 01 55 45.876 +01 17 49.75 X F52
2024-10-10 11:29:21 C 01 55 48.570 +01 17 30.72 X F52
2024-10-10 12:17:44 C 01 55 56.085 +01 16 37.93 X F52