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
2006-09-25 11:10:14 C 17 17 44.16 -12 44 55.0 r E12
2006-09-25 11:15:57 C 17 17 44.77 -12 44 48.8 r E12
2006-09-27 01:27:31 C 17 21 45.20 -12 04 30.3 o H68
2006-09-27 01:33:37 C 17 21 45.75 -12 04 23.6 o H68
2006-09-27 01:36:40 C 17 21 46.04 -12 04 21.3 o H68
2006-10-11 16:41:14 C 17 58 02.06 -06 18 48.7 15.6 r 084
2006-12-07 16:52:28 C 20 23 22.45 +12 25 23.7 17.1 r 084
2006-12-07 16:55:38 C 20 23 22.78 +12 25 26.5 17.4 r 084
2006-12-17 17:12:44 C 20 51 30.09 +15 32 23.0 16.7 r 084
2006-12-25 16:10:44 C 21 14 40.88 +17 59 52.1 17.1 r 084
2006-12-25 16:14:54 C 21 14 41.37 +17 59 55.1 17.0 r 084
2007-01-20 18:18:54 C 22 36 02.12 +25 42 33.7 17.5 r 084
2007-01-20 18:23:04 C 22 36 02.65 +25 42 36.7 r 084
2007-01-31 17:27:38 C 23 12 34.65 +28 37 39.2 r 084
2007-02-19 18:34:58 C 00 18 32.93 +32 54 40.2 17.5 r 084
2007-10-19 11:46:15 C 10 09 36.86 +02 12 37.2 r 703
2007-10-19 11:52:33 C 10 09 37.11 +02 12 32.5 r 703
2007-10-19 11:58:48 C 10 09 37.65 +02 12 27.7 r 703
2007-10-19 12:05:06 C 10 09 37.90 +02 12 23.1 r 703
2007-11-13 12:16:38 C 10 38 35.91 -06 01 44.1 r 703
2007-11-13 12:25:17 C 10 38 36.24 -06 01 51.9 r 703
2007-11-13 12:33:45 C 10 38 36.60 -06 01 59.0 r 703
2007-11-13 12:42:17 C 10 38 36.96 -06 02 07.1 r 703
2008-02-12 15:59:04 C 10 26 51.68 -41 44 08.0 r E12
2008-02-12 16:06:10 C 10 26 51.03 -41 44 13.0 r E12
2008-02-12 16:13:17 C 10 26 50.46 -41 44 17.7 r E12
2008-02-12 16:20:23 C 10 26 49.84 -41 44 22.6 r E12
2008-02-15 05:42:59 C 10 21 34.04 -42 25 24.3 r 808
2008-02-15 05:53:00 C 10 21 33.25 -42 25 30.0 r 808
2008-02-15 06:02:59 C 10 21 32.33 -42 25 36.6 r 808
2008-03-08 11:01:27 C 09 30 22.69 -45 15 36.5 r E18
2008-03-08 12:22:01 C 09 30 14.98 -45 15 36.8 r E18
2008-03-10 10:47:12 C 09 25 59.00 -45 14 06.2 r E18
2008-03-10 11:46:06 C 09 25 53.53 -45 14 03.4 r E18
2008-03-16 05:25:48 C 09 14 05.55 -44 56 14.0 16.7 c 844
2008-03-16 05:29:57 C 09 14 05.23 -44 56 13.0 16.8 c 844
2008-03-16 05:31:12 C 09 14 05.13 -44 56 12.9 16.6 c 844
2008-03-16 05:35:00 C 09 14 04.84 -44 56 12.1 17.1 c 844
2008-03-23 01:43:29 C 09 02 09.07 -44 13 19.0 r 808
2008-03-23 01:57:50 C 09 02 08.21 -44 13 14.8 r 808
2008-03-23 02:07:29 C 09 02 07.52 -44 13 11.4 r 808
2008-04-22 23:21:59 C 08 42 29.66 -38 50 46.4 r 808
2008-04-22 23:31:30 C 08 42 29.68 -38 50 42.2 r 808
2008-04-22 23:44:00 C 08 42 29.79 -38 50 36.7 r 808
2008-04-23 23:01:00 C 08 42 43.87 -38 40 17.6 r 808
2008-04-23 23:10:30 C 08 42 44.01 -38 40 13.7 r 808
2008-04-23 23:20:30 C 08 42 44.02 -38 40 09.4 r 808
2008-05-31 08:09:38 C 09 19 45.41 -33 58 46.2 r 432
2008-05-31 08:30:26 C 09 19 46.75 -33 58 42.4 r 432
2008-05-31 08:46:20 C 09 19 47.76 -33 58 39.5 r 432