2021 YS

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5083522400 ± 3.73e-08
Semi-major axis (a)2.1572219253 AU ± 4.45e-08
Inclination (i)7.07597190° ± 4.19e-06
Long. of Asc. Node (Ω)152.10878676° ± 3.65e-05
Arg. of Perihelion (ω)20.10441713° ± 3.65e-05
Mean Anomaly (M)54.35137331° ± 1.36e-05
Mean Motion (n)0.3110785297°/day ± 9.63e-09
Perihelion dist (q)1.06059333 AU ± 8.34e-08
Aphelion dist (Q)3.25385052 AU ± 1.05e-07
Orbital Period3.16841630 yr ± 9.81e-08
Physical Parameters
H (abs. magnitude)19.92
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.327″
Uncertainty0
Orbit TypeAmor
MOID0.076732 AU
Observations Used190
Oppositions5
Arc Total2016-2024
First Observation Used2016-07-06
Last Observation Used2024-11-10
Observations (196)
Date Type RA Dec Mag Band Observatory
2021-12-31 02:54:49 C 05 24 24.76 +05 26 04.7 V 734
2021-12-31 03:05:36 C 05 24 24.00 +05 26 04.7 V 734
2021-12-31 03:55:26 C 05 24 20.15 +05 26 25.8 u 807
2021-12-31 04:03:26 C 05 24 19.55 +05 26 27.0 u 807
2021-12-31 04:11:21 C 05 24 18.98 +05 26 26.9 u 807
2021-12-31 18:04:05 C 05 23 24.54 +05 26 33.3 v 587
2021-12-31 18:07:06 C 05 23 24.36 +05 26 33.3 v 587
2021-12-31 18:10:09 C 05 23 24.17 +05 26 33.2 v 587
2022-01-01 03:48:48 C 05 22 44.98 +05 27 20.6 u 807
2022-01-01 03:54:46 C 05 22 44.56 +05 27 20.1 u 807
2022-01-01 04:00:48 C 05 22 44.16 +05 27 21.5 u 807
2022-01-02 05:01:39 C 05 21 04.48 +05 28 46.7 u 807
2022-01-02 05:04:51 C 05 21 04.27 +05 28 46.8 u 807
2022-01-02 05:07:38 C 05 21 04.09 +05 28 47.3 u 807
2022-01-03 04:40:31 C 05 19 31.10 +05 30 36.0 u 807
2022-01-03 04:43:18 C 05 19 30.89 +05 30 35.9 u 807
2022-01-03 04:46:28 C 05 19 30.66 +05 30 36.1 u 807
2022-01-03 07:17:37 C 05 19 20.76 +05 30 30.9 V V06
2022-01-03 07:23:57 C 05 19 20.36 +05 30 31.4 V V06
2022-01-03 07:30:17 C 05 19 19.93 +05 30 31.6 V V06
2022-01-03 07:36:37 C 05 19 19.50 +05 30 32.8 V V06
2022-01-04 04:50:41 C 05 17 56.13 +05 32 54.9 u 807
2022-01-04 04:54:40 C 05 17 55.86 +05 32 55.1 u 807
2022-01-04 04:58:33 C 05 17 55.59 +05 32 55.8 u 807
2022-01-05 04:56:45 C 05 16 23.03 +05 35 23.3 V I52
2022-01-05 05:02:04 C 05 16 22.68 +05 35 24.0 V I52
2022-01-05 05:14:25 C 05 16 21.84 +05 35 25.8 V I52
2022-01-06 03:50:02 C 05 14 54.54 +05 38 47.2 u 807
2022-01-06 03:53:53 C 05 14 54.29 +05 38 47.6 u 807
2022-01-06 03:57:44 C 05 14 54.02 +05 38 48.1 u 807
2022-01-07 00:58:04 C 05 13 34.93 +05 42 00.7 u 807
2022-01-07 01:01:59 C 05 13 34.68 +05 42 01.2 u 807
2022-01-07 01:05:50 C 05 13 34.46 +05 42 02.2 u 807
2022-01-07 03:14:45 C 05 13 26.45 +05 42 03.7 V I52
2022-01-07 03:30:59 C 05 13 25.37 +05 42 06.8 V I52
2022-01-07 03:35:29 C 05 13 25.09 +05 42 07.5 V I52
2022-01-08 02:20:38 C 05 12 00.21 +05 46 03.4 V I52
2022-01-08 02:28:04 C 05 11 59.80 +05 46 04.8 V I52
2022-01-08 02:32:53 C 05 11 59.47 +05 46 05.6 V I52
2022-01-08 02:39:40 C 05 11 58.99 +05 46 07.6 V I52
2022-01-08 06:25:40 C 05 11 44.933 +05 46 52.61 U F52
2022-01-08 06:42:23 C 05 11 43.824 +05 46 55.83 U F52
2022-01-08 06:59:02 C 05 11 42.726 +05 46 58.93 U F52
2022-01-08 07:15:45 C 05 11 41.610 +05 47 02.14 U F52
2022-01-09 04:52:32 C 05 10 22.17 +05 51 12.6 V I52
2022-01-09 04:58:36 C 05 10 21.74 +05 51 13.4 V I52
2022-01-09 05:04:40 C 05 10 21.34 +05 51 15.0 V I52
2022-01-10 02:40:21 C 05 09 04.26 +05 55 51.1 V I52
2022-01-10 02:46:09 C 05 09 03.96 +05 55 53.3 V I52
2022-01-10 02:51:12 C 05 09 03.56 +05 55 53.1 V I52