2021 YN

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6938816409 ± 1.40e-07
Semi-major axis (a)1.6503830492 AU ± 6.58e-08
Inclination (i)6.97697187° ± 8.79e-06
Long. of Asc. Node (Ω)91.44910106° ± 1.72e-05
Arg. of Perihelion (ω)127.29594492° ± 2.08e-05
Mean Anomaly (M)268.15895454° ± 3.64e-05
Mean Motion (n)0.4648738794°/day ± 2.78e-08
Perihelion dist (q)0.50521255 AU ± 2.32e-07
Aphelion dist (Q)2.79555355 AU ± 2.56e-07
Orbital Period2.12020147 yr ± 1.27e-07
Physical Parameters
H (abs. magnitude)21.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.166″
Uncertainty0
Orbit TypeApollo
MOID0.052983 AU
Observations Used164
Oppositions2
Arc Total2021-2024
First Observation Used2021-12-07
Last Observation Used2024-01-01
Observations (174)
Date Type RA Dec Mag Band Observatory
2021-12-07 09:58:58 C 07 50 00.34 +20 40 15.9 V G96
2021-12-07 10:13:57 C 07 50 00.38 +20 40 19.5 V G96
2021-12-26 17:36:19 C 07 43 26.42 +25 08 34.5 V D29
2021-12-26 18:25:57 C 07 43 23.38 +25 09 28.6 V D29
2021-12-26 19:15:35 C 07 43 20.33 +25 10 22.1 V D29
2021-12-27 07:51:59 C 07 42 39.56 +25 24 37.5 V I52
2021-12-27 07:55:05 C 07 42 39.33 +25 24 40.8 V I52
2021-12-27 07:56:11 C 07 42 39.28 +25 24 42.0 V I52
2021-12-27 13:29:44 C 07 42 21.04 +25 30 56.5 V N88
2021-12-27 17:45:05 C 07 42 04.15 +25 36 12.6 V D29
2021-12-27 18:04:26 C 07 42 03.69 +25 36 29.9 V N88
2021-12-27 18:05:27 C 07 42 02.76 +25 36 36.8 V D29
2021-12-27 18:10:41 C 07 42 03.27 +25 36 37.6 V N88
2021-12-27 18:25:49 C 07 42 01.39 +25 37 00.8 V D29
2021-12-27 19:05:19 C 07 42 00.65 +25 37 41.0 V 119
2021-12-27 19:12:37 C 07 42 00.18 +25 37 50.0 V 119
2021-12-27 19:19:55 C 07 41 59.69 +25 37 59.0 V 119
2021-12-27 19:27:13 C 07 41 59.23 +25 38 07.8 V 119
2021-12-27 19:34:31 C 07 41 58.73 +25 38 17.1 V 119
2021-12-27 19:57:52 C 07 41 56.09 +25 38 46.5 V N88
2021-12-27 20:04:13 C 07 41 55.65 +25 38 53.8 V N88
2021-12-27 20:10:38 C 07 41 56.67 +25 38 53.6 V 033
2021-12-27 20:11:07 C 07 41 56.63 +25 38 54.4 V 033
2021-12-27 20:11:36 C 07 41 56.60 +25 38 54.9 V 033
2021-12-27 20:12:20 C 07 41 56.56 +25 38 55.8 V 033
2021-12-28 21:32:51 C 07 40 17.71 +26 10 49.6 V B49
2021-12-28 21:35:27 C 07 40 17.51 +26 10 52.9 V B49
2021-12-30 06:03:25 C 07 37 50.37 +26 56 09.3 V H06
2021-12-30 06:50:56 C 07 37 46.10 +26 57 20.2 V H06
2021-12-30 07:41:36 C 07 37 41.50 +26 58 35.8 V H06
2021-12-31 00:18:30 C 07 36 15.74 +27 23 51.4 X C95
2021-12-31 00:26:28 C 07 36 14.97 +27 24 04.1 X C95
2021-12-31 00:34:27 C 07 36 14.17 +27 24 16.4 X C95
2021-12-31 00:42:27 C 07 36 13.41 +27 24 29.0 X C95
2022-01-01 02:09:50 C 07 33 46.10 +28 06 29.0 V 204
2022-01-01 02:15:15 C 07 33 45.52 +28 06 38.3 V 204
2022-01-01 02:20:40 C 07 33 44.94 +28 06 47.4 V 204
2022-01-01 21:03:33 C 07 31 46.34 +28 40 18.6 V 033
2022-01-01 21:03:57 C 07 31 46.30 +28 40 19.4 V 033
2022-01-01 21:04:22 C 07 31 46.26 +28 40 20.2 V 033
2022-01-02 03:34:52 C 07 30 58.74 +28 52 36.8 V K38
2022-01-02 03:46:21 C 07 30 57.34 +28 52 58.0 V K38
2022-01-02 03:57:51 C 07 30 55.96 +28 53 20.0 V K38
2022-01-02 20:34:01 C 07 28 57.19 +29 26 03.0 V 033
2022-01-02 20:34:25 C 07 28 57.14 +29 26 03.9 V 033
2022-01-02 20:34:50 C 07 28 57.08 +29 26 04.7 V 033
2022-01-02 23:47:53 C 07 28 31.19 +29 32 43.2 V Z99
2022-01-02 23:51:10 C 07 28 30.72 +29 32 50.2 V Z99
2022-01-02 23:54:26 C 07 28 30.30 +29 32 56.7 V Z99
2022-01-02 23:57:36 C 07 28 29.83 +29 33 03.4 V Z99