21088 Chelyabinsk (1992 BL2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2387361539 ± 6.03e-09
Semi-major axis (a)1.7063669522 AU ± 3.31e-10
Inclination (i)38.46248793° ± 9.84e-07
Long. of Asc. Node (Ω)297.82517282° ± 9.53e-07
Arg. of Perihelion (ω)27.19775356° ± 1.68e-06
Mean Anomaly (M)205.19142502° ± 1.08e-06
Mean Motion (n)0.4421846161°/day ± 1.29e-10
Perihelion dist (q)1.29899547 AU ± 1.03e-08
Aphelion dist (Q)2.11373844 AU ± 1.03e-08
Orbital Period2.22899270 yr ± 6.48e-10
Physical Parameters
H (abs. magnitude)14.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.228″
Uncertainty0
Orbit TypeAmor
MOID0.306089 AU
Observations Used6935
Gaia Obs Used131
Oppositions15
Arc Total1990-2026
First Observation Used1990-01-30
Last Observation Used2026-01-13
Observations (9404)
Date Type RA Dec Mag Band Observatory
2015-09-10 00:56:32 C 17 41 55.00 +04 53 45.9 u H21
2015-09-10 00:59:23 C 17 41 55.15 +04 53 49.3 u H21
2015-09-10 01:02:14 C 17 41 55.31 +04 53 52.9 u H21
2015-09-10 01:05:05 C 17 41 55.46 +04 53 56.3 u H21
2015-09-10 01:07:57 C 17 41 55.62 +04 53 59.9 u H21
2015-09-10 01:10:49 C 17 41 55.78 +04 54 03.3 u H21
2015-09-10 01:13:40 C 17 41 55.93 +04 54 06.8 u H21
2015-09-10 01:16:31 C 17 41 56.09 +04 54 10.3 u H21
2015-09-10 01:19:22 C 17 41 56.24 +04 54 13.9 u H21
2015-09-10 01:22:14 C 17 41 56.40 +04 54 17.4 u H21
2015-09-10 01:25:09 C 17 41 56.60 +04 54 21.3 q H45
2015-09-10 01:27:36 C 17 41 56.73 +04 54 24.3 q H45
2015-09-10 01:29:44 C 17 41 56.85 +04 54 26.9 q H45
2015-09-10 01:31:43 C 17 41 56.95 +04 54 29.3 q H45
2015-09-10 01:35:26 C 17 41 57.16 +04 54 34.0 q H45
2015-09-10 01:36:33 C 17 41 57.22 +04 54 35.2 q H45
2015-09-10 02:55:51 S 17 42 01.90 +04 56 19.0 L C51
2015-09-10 19:18:06 C 17 42 58.22 +05 16 04.5 q 160
2015-09-10 19:20:52 C 17 42 58.37 +05 16 07.9 q 160
2015-09-10 19:23:39 C 17 42 58.51 +05 16 11.3 q 160
2015-09-11 12:15:16 C 17 43 57.08 +05 36 20.0 o 300
2015-09-11 12:17:34 C 17 43 57.23 +05 36 21.8 o 300
2015-09-11 12:19:54 C 17 43 57.35 +05 36 24.5 o 300
2015-09-11 12:22:12 C 17 43 57.45 +05 36 28.2 o 300
2015-09-11 19:32:19 C 17 44 22.85 +05 44 51.9 q 160
2015-09-11 19:35:11 C 17 44 23.02 +05 44 55.2 q 160
2015-09-11 19:37:59 C 17 44 23.17 +05 44 58.5 q 160
2015-09-14 00:58:47 C 17 47 33.83 +06 45 43.9 u H21
2015-09-14 01:01:17 C 17 47 33.97 +06 45 46.7 u H21
2015-09-14 01:03:48 C 17 47 34.11 +06 45 49.4 u H21
2015-09-14 01:06:18 C 17 47 34.25 +06 45 52.1 u H21
2015-09-14 01:08:48 C 17 47 34.40 +06 45 54.9 u H21
2015-09-14 01:11:18 C 17 47 34.54 +06 45 57.6 u H21
2015-09-14 01:13:49 C 17 47 34.69 +06 46 00.5 u H21
2015-09-14 01:16:19 C 17 47 34.83 +06 46 03.2 u H21
2015-09-14 01:18:49 C 17 47 34.98 +06 46 06.0 u H21
2015-09-14 01:21:19 C 17 47 35.12 +06 46 08.8 u H21
2015-09-14 01:23:50 C 17 47 35.28 +06 46 11.5 u H21
2015-09-14 01:25:50 C 17 47 35.39 +06 46 13.7 u H21
2015-09-14 01:28:05 C 17 47 35.52 +06 46 16.2 u H21
2015-09-15 00:56:05 C 17 49 01.17 +07 11 53.9 u H21
2015-09-15 00:58:35 C 17 49 01.32 +07 11 56.6 u H21
2015-09-15 01:01:05 C 17 49 01.46 +07 11 59.4 u H21
2015-09-15 01:03:35 C 17 49 01.60 +07 12 02.1 u H21
2015-09-15 01:11:06 C 17 49 02.05 +07 12 10.2 u H21
2015-09-15 01:13:36 C 17 49 02.19 +07 12 12.8 u H21
2015-09-15 01:16:06 C 17 49 02.34 +07 12 15.5 u H21
2015-09-15 01:18:36 C 17 49 02.49 +07 12 18.3 u H21
2015-09-15 01:21:06 C 17 49 02.64 +07 12 20.9 u H21
2015-09-15 01:23:36 C 17 49 02.78 +07 12 23.6 u H21