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
2011-11-29 11:22:49 C 09 09 53.93 +37 50 06.9 t H47
2011-11-29 11:35:26 C 09 09 53.52 +37 50 03.8 t H47
2011-12-19 09:11:10 C 08 43 29.78 +35 31 09.2 t H47
2011-12-19 09:15:20 C 08 43 29.39 +35 31 06.5 t H47
2011-12-19 09:20:18 C 08 43 29.01 +35 31 05.7 t H47
2011-12-24 07:30:48 C 08 33 08.60 +34 44 39.9 r 703
2011-12-24 07:43:53 C 08 33 07.34 +34 44 34.3 r 703
2011-12-24 07:57:07 C 08 33 06.08 +34 44 29.1 r 703
2011-12-24 08:10:15 C 08 33 04.82 +34 44 23.3 r 703
2011-12-29 08:24:19 C 08 21 18.43 +33 48 53.4 t H47
2011-12-29 08:43:25 C 08 21 16.45 +33 48 43.5 t H47
2011-12-29 08:52:22 C 08 21 15.51 +33 48 39.0 t H47
2011-12-29 08:54:35 C 08 21 15.44 +33 48 38.2 r G96
2011-12-29 09:06:14 C 08 21 14.22 +33 48 32.4 r G96
2011-12-29 09:17:52 C 08 21 12.99 +33 48 26.6 r G96
2011-12-29 09:29:34 C 08 21 11.77 +33 48 20.7 r G96
2012-01-02 09:40:47 C 08 11 06.72 +32 57 05.5 u H45
2012-01-02 09:43:37 C 08 11 06.41 +32 57 03.7 u H45
2012-01-02 09:47:04 C 08 11 06.03 +32 57 01.8 u H45
2012-01-02 09:50:41 C 08 11 05.65 +32 56 59.6 u H45
2012-01-02 09:53:06 C 08 11 05.37 +32 56 58.2 u H45
2012-01-12 20:36:50 C 07 43 49.08 +30 15 03.7 o J16
2012-01-12 20:47:16 C 07 43 47.95 +30 14 55.7 o J16
2012-01-12 20:58:05 C 07 43 46.71 +30 14 48.8 o J16
2012-01-12 21:08:33 C 07 43 45.60 +30 14 41.5 o J16
2012-01-12 23:02:36 C 07 43 33.11 +30 13 21.5 c A24
2012-01-12 23:03:37 C 07 43 33.01 +30 13 20.9 c A24
2012-01-13 21:35:18 C 07 41 08.19 +29 57 00.8 c A24
2012-01-13 21:36:20 C 07 41 08.00 +29 56 59.4 c A24
2012-01-14 04:03:03 C 07 40 26.91 +29 52 17.5 u H15
2012-01-14 04:23:00 C 07 40 24.76 +29 52 03.1 u H15
2012-01-14 04:42:54 C 07 40 22.59 +29 51 48.7 u H15
2012-01-14 05:02:50 C 07 40 20.41 +29 51 34.0 u H15
2012-01-14 07:02:14 C 07 40 07.46 +29 50 07.1 r 703
2012-01-14 07:09:27 C 07 40 06.70 +29 50 01.9 r 703
2012-01-14 07:16:47 C 07 40 05.84 +29 49 56.6 r 703
2012-01-14 07:24:09 C 07 40 05.05 +29 49 49.6 r 703
2012-01-14 07:31:27 C 07 40 04.22 +29 49 45.4 r 703
2012-01-15 23:08:17 C 07 35 53.22 +29 20 17.3 c A24
2012-01-15 23:09:22 C 07 35 53.11 +29 20 16.4 c A24
2012-01-16 07:30:48 C 07 35 01.087 +29 14 01.17 L F51
2012-01-16 07:48:18 C 07 34 59.223 +29 13 48.11 L F51
2012-01-16 08:07:15 C 07 34 57.210 +29 13 34.05 L F51
2012-01-17 08:21:47 C 07 32 25.94 +28 55 08.7 16.5 c 704
2012-01-17 08:40:37 C 07 32 23.92 +28 54 54.7 17.0 c 704
2012-01-17 08:59:34 C 07 32 21.97 +28 54 39.7 16.6 c 704
2012-01-17 09:18:25 C 07 32 20.01 +28 54 25.1 16.5 c 704
2012-01-17 09:37:18 C 07 32 18.01 +28 54 10.5 16.9 c 704
2012-01-21 08:58:58 C 07 22 46.95 +27 39 59.2 r G96
2012-01-21 09:00:14 C 07 22 46.84 +27 39 58.1 r G96