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
2022-03-15 03:23:34 C 05 47 31.28 +24 22 44.3 V I52
2022-03-23 04:27:51 C 06 16 20.83 +27 44 28.4 V I52
2022-03-23 04:31:27 C 06 16 21.43 +27 44 31.3 V I52
2022-03-23 04:34:31 C 06 16 22.00 +27 44 33.6 V I52
2022-03-27 02:39:59 C 06 33 05.79 +29 20 07.8 V G96
2022-03-27 02:48:10 C 06 33 07.34 +29 20 15.6 V G96
2022-03-27 02:56:22 C 06 33 08.79 +29 20 23.6 V G96
2022-03-27 03:04:33 C 06 33 10.22 +29 20 31.5 V G96
2022-04-08 05:38:03 C 07 37 19.867 +33 29 05.71 W 568
2022-04-08 05:39:13 C 07 37 20.158 +33 29 06.28 W 568
2022-04-08 05:42:15 C 07 37 20.890 +33 29 08.32 W 568
2022-04-08 05:44:00 C 07 37 21.331 +33 29 09.51 W 568
2022-04-08 05:45:31 C 07 37 21.682 +33 29 10.46 W 568
2022-04-26 04:12:15 C 09 40 56.737 +34 13 04.12 V G96
2022-04-26 04:20:23 C 09 40 59.120 +34 12 59.33 V G96
2022-04-26 04:28:34 C 09 41 01.514 +34 12 54.97 V G96
2022-04-26 04:32:39 C 09 41 02.764 +34 12 52.27 V 703
2022-04-26 04:36:43 C 09 41 03.916 +34 12 50.22 V G96
2022-04-26 04:40:14 C 09 41 05.046 +34 12 48.20 V 703
2022-04-26 04:47:49 C 09 41 07.177 +34 12 43.45 V 703
2022-04-26 04:55:23 C 09 41 09.416 +34 12 38.12 V 703
2022-04-27 20:07:09 C 09 52 53.854 +33 48 41.90 V A17
2022-04-27 20:24:07 C 09 52 58.838 +33 48 29.38 V A17
2022-04-27 20:41:09 C 09 53 03.780 +33 48 18.04 V A17
2022-05-04 05:24:56 C 10 37 15.121 +31 32 38.18 V 703
2022-05-04 05:33:07 C 10 37 17.166 +31 32 29.80 V 703
2022-05-04 05:49:30 C 10 37 21.400 +31 32 12.84 V 703
2022-05-18 05:42:45 C 11 59 37.050 +23 52 15.38 V G96
2022-05-18 05:50:13 C 11 59 38.573 +23 52 03.86 V G96
2022-05-18 05:57:41 C 11 59 40.103 +23 51 52.09 V G96
2022-05-18 06:05:09 C 11 59 41.622 +23 51 40.43 V G96
2022-06-16 06:43:15 C 13 47 30.440 +07 07 35.62 V I52
2022-06-16 06:45:05 C 13 47 30.692 +07 07 32.81 V I52
2022-06-16 06:46:54 C 13 47 30.962 +07 07 32.02 V I52
2022-06-16 06:48:42 C 13 47 31.135 +07 07 29.64 V I52
2022-07-06 05:43:06 C 14 36 38.750 -01 22 08.30 V V06
2022-07-06 05:47:41 C 14 36 39.150 -01 22 12.10 V V06
2022-07-06 05:52:15 C 14 36 39.580 -01 22 17.20 V V06
2022-07-06 05:56:50 C 14 36 39.970 -01 22 20.80 V V06
2022-07-07 04:08:21 C 14 38 43.465 -01 42 27.90 V V06
2022-07-07 04:14:05 C 14 38 43.969 -01 42 33.08 V V06
2022-07-07 04:19:48 C 14 38 44.491 -01 42 38.23 V V06
2022-07-07 04:25:32 C 14 38 45.006 -01 42 43.24 V V06
2024-11-10 08:56:24 C 03 30 59.38 +06 05 04.2 V 291
2024-11-10 09:15:07 C 03 30 58.38 +06 04 58.4 V 291
2024-11-10 09:33:51 C 03 30 57.32 +06 04 52.6 V 291