2021 YM

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7694370217 ± 4.48e-08
Semi-major axis (a)2.4524237678 AU ± 3.92e-08
Inclination (i)9.88404470° ± 7.32e-06
Long. of Asc. Node (Ω)319.34061470° ± 3.83e-05
Arg. of Perihelion (ω)33.20270917° ± 4.00e-05
Mean Anomaly (M)18.71451797° ± 9.26e-06
Mean Motion (n)0.2566368414°/day ± 6.15e-09
Perihelion dist (q)0.56543813 AU ± 1.10e-07
Aphelion dist (Q)4.33940941 AU ± 1.30e-07
Orbital Period3.84054868 yr ± 9.20e-08
Physical Parameters
H (abs. magnitude)18.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.213″
Uncertainty0
Orbit TypeApollo
MOID0.143573 AU
Observations Used221
Oppositions11
Arc Total2011-2026
First Observation Used2011-01-30
Last Observation Used2026-01-12
Observations (230)
Date Type RA Dec Mag Band Observatory
2011-01-30 09:43:05 C 10 15 25.760 +09 32 21.90 V F51
2011-01-30 10:04:22 C 10 15 24.736 +09 32 25.61 V F51
2011-01-30 10:27:31 C 10 15 23.657 +09 32 30.19 V F51
2011-01-30 10:48:47 C 10 15 22.621 +09 32 34.83 V F51
2011-02-04 10:48:54 C 10 09 36.521 +09 56 43.50 V F51
2011-02-05 10:52:16 C 10 08 25.695 +10 01 40.22 V F51
2011-02-05 11:33:43 C 10 08 23.645 +10 01 48.95 V F51
2021-12-25 04:43:00 S 23 45 55.337 +52 17 59.96 L C51
2021-12-25 06:17:04 S 23 47 41.645 +52 21 18.72 L C51
2021-12-25 09:25:11 S 23 51 13.879 +52 27 36.00 L C51
2021-12-26 05:54:27 C 00 14 01.37 +52 58 39.0 V T08
2021-12-26 06:03:08 C 00 14 10.71 +52 58 47.2 V T08
2021-12-26 06:19:10 C 00 14 28.04 +52 59 03.2 V T08
2021-12-27 01:31:51 C 00 35 09.09 +53 11 58.2 V I52
2021-12-27 01:32:17 C 00 35 09.52 +53 11 58.4 V I52
2021-12-27 01:32:44 C 00 35 09.97 +53 11 58.5 V I52
2021-12-27 11:57:38 C 00 45 55.54 +53 13 18.5 V 900
2021-12-27 12:04:29 C 00 46 02.46 +53 13 17.6 V 900
2021-12-27 12:11:21 C 00 46 09.36 +53 13 16.9 V 900
2021-12-27 13:59:51 C 00 47 58.95 +53 13 00.4 r P93
2021-12-27 14:00:54 C 00 47 59.87 +53 12 58.8 r P93
2021-12-27 14:01:55 C 00 48 00.90 +53 12 58.9 r P93
2021-12-27 16:39:38 C 00 50 44.63 +53 12 44.7 V 246
2021-12-27 16:39:48 C 00 50 44.72 +53 12 44.9 V 246
2021-12-27 16:39:58 C 00 50 44.96 +53 12 44.8 V 246
2021-12-27 16:40:17 C 00 50 45.30 +53 12 44.2 V 246
2021-12-27 17:36:09 C 00 51 41.26 +53 12 37.3 V C95
2021-12-27 17:40:41 C 00 51 45.73 +53 12 36.1 V C95
2021-12-27 17:45:10 C 00 51 50.21 +53 12 35.1 V C95
2021-12-27 17:49:41 C 00 51 54.67 +53 12 34.2 V C95
2021-12-27 19:32:43 C 00 53 36.74 +53 12 11.0 X J57
2021-12-27 19:36:27 C 00 53 40.41 +53 12 10.0 X J57
2021-12-27 19:40:28 C 00 53 44.38 +53 12 09.2 X J57
2021-12-27 19:48:09 C 00 53 51.53 +53 11 56.9 V 033
2021-12-27 19:48:34 C 00 53 51.96 +53 11 57.2 V 033
2021-12-27 19:48:58 C 00 53 52.32 +53 11 57.0 V 033
2021-12-27 19:49:27 C 00 53 52.80 +53 11 56.5 V 033
2021-12-27 19:49:55 C 00 53 53.28 +53 11 56.3 V 033
2021-12-27 20:09:33 C 00 54 13.83 +53 12 09.3 V G40
2021-12-27 20:20:43 C 00 54 24.72 +53 12 05.8 V G40
2021-12-27 20:26:45 C 00 54 30.58 +53 12 03.9 V G40
2021-12-28 16:26:33 C 01 13 48.02 +53 00 16.5 X G02
2021-12-28 16:32:51 C 01 13 53.90 +53 00 12.0 X G02
2021-12-28 16:40:55 C 01 14 01.32 +53 00 05.4 X G02
2021-12-28 17:40:18 C 01 14 56.53 +52 59 19.8 V B74
2021-12-28 17:50:22 C 01 15 05.73 +52 59 10.9 V B74
2021-12-28 17:59:27 C 01 15 14.06 +52 59 03.9 V B74
2021-12-29 00:49:09 C 01 21 27.18 +52 52 34.0 u H21
2021-12-29 00:51:42 C 01 21 29.45 +52 52 31.4 u H21
2021-12-29 00:54:31 C 01 21 31.94 +52 52 28.5 u H21