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
2012-02-21 17:47:50 C 06 37 49.53 +18 29 08.8 r 168
2012-02-21 19:00:22 C 06 37 48.05 +18 28 27.1 c A24
2012-02-21 19:01:25 C 06 37 48.02 +18 28 26.6 c A24
2012-02-21 20:09:42 C 06 37 46.39 +18 27 45.7 c A24
2012-02-21 20:10:44 C 06 37 46.41 +18 27 44.9 c A24
2012-02-22 18:47:37 C 06 37 17.62 +18 14 24.3 c A24
2012-02-22 18:48:39 C 06 37 17.60 +18 14 23.9 c A24
2012-02-22 19:57:00 C 06 37 16.12 +18 13 43.8 c A24
2012-02-22 19:58:02 C 06 37 16.10 +18 13 43.4 c A24
2012-02-24 19:08:00 C 06 36 24.81 +17 46 37.0 c A24
2012-02-24 19:09:02 C 06 36 24.79 +17 46 36.5 c A24
2012-02-24 20:17:18 C 06 36 23.59 +17 45 57.8 c A24
2012-02-24 20:18:20 C 06 36 23.61 +17 45 56.6 c A24
2012-02-25 19:04:01 C 06 36 03.08 +17 33 13.8 c A24
2012-02-25 19:05:03 C 06 36 03.06 +17 33 13.7 c A24
2012-02-25 20:11:25 C 06 36 02.04 +17 32 36.4 c A24
2012-02-25 20:12:28 C 06 36 02.02 +17 32 35.3 c A24
2012-03-11 19:23:59 C 06 35 44.43 +14 38 03.3 C91
2012-03-11 19:39:59 C 06 35 44.62 +14 37 56.7 C91
2012-03-13 21:55:01 C 06 36 21.89 +14 16 55.7 c A24
2012-03-13 21:56:02 C 06 36 21.97 +14 16 54.9 c A24
2012-03-14 19:15:17 C 06 36 40.50 +14 08 13.4 c A24
2012-03-14 19:16:20 C 06 36 40.54 +14 08 13.1 c A24
2012-03-14 20:23:37 C 06 36 41.43 +14 07 45.9 c A24
2012-03-14 20:24:39 C 06 36 41.46 +14 07 45.3 c A24
2012-03-21 21:59:32 C 06 39 59.04 +13 02 34.4 c A24
2012-03-21 22:01:37 C 06 39 59.03 +13 02 34.0 c A24
2012-03-23 02:47:03 C 06 40 40.93 +12 52 08.7 17.9 c 704
2012-03-23 03:02:12 C 06 40 41.31 +12 52 03.7 18.2 c 704
2012-03-23 03:32:33 C 06 40 42.16 +12 51 52.6 19.5 c 704
2012-03-23 03:47:42 C 06 40 42.38 +12 51 46.5 18.0 c 704
2012-03-23 21:00:29 C 06 41 08.58 +12 45 34.5 c A24
2012-03-23 21:01:00 C 06 41 08.57 +12 45 34.3 c A24
2012-03-23 21:02:34 C 06 41 08.51 +12 45 35.6 c A24
2012-03-23 21:03:05 C 06 41 08.57 +12 45 35.3 c A24
2012-03-27 05:40:40 C 06 43 21.251 +12 17 25.49 L F51
2012-03-27 05:57:21 C 06 43 21.712 +12 17 19.81 L F51
2012-04-10 18:36:00 C 06 55 41.17 +10 24 57.5 u C73
2012-04-10 18:42:57 C 06 55 41.44 +10 24 54.8 u C73
2012-04-10 18:49:54 C 06 55 41.71 +10 24 53.2 u C73
2012-04-17 02:52:42 C 07 02 13.68 +09 38 45.0 18.5 c 704
2012-04-17 03:08:41 C 07 02 14.42 +09 38 40.2 18.6 c 704
2012-04-17 03:24:49 C 07 02 15.16 +09 38 34.8 18.9 c 704
2012-04-17 03:40:58 C 07 02 15.83 +09 38 29.6 18.7 c 704
2012-04-17 03:56:59 C 07 02 16.55 +09 38 25.3 18.9 c 704
2013-04-18 18:17:24 C 22 04 53.32 -22 48 25.3 q E12
2013-04-18 18:34:47 C 22 04 54.94 -22 48 01.8 q E12
2013-04-18 18:52:13 C 22 04 56.59 -22 47 38.4 q E12
2013-04-18 19:09:40 C 22 04 58.20 -22 47 14.5 q E12
2013-06-14 10:24:55 C 23 57 59.04 +17 47 40.6 u 703