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
2004-08-18 20:11:23 C 22 24 21.21 +66 07 57.7 c 434
2004-08-18 20:13:46 C 22 24 20.79 +66 08 01.5 c 434
2004-08-18 20:17:38 C 22 24 20.12 +66 08 07.3 c 434
2004-08-18 20:19:11 C 22 24 19.91 +66 08 10.0 c 434
2004-08-18 21:06:26 C 22 24 11.25 +66 09 22.3 d 639
2004-08-18 21:12:12 C 22 24 10.03 +66 09 32.4 d 639
2004-08-18 21:28:54 C 22 24 07.12 +66 09 57.7 d 639
2004-08-18 21:33:46 C 22 24 06.06 +66 10 06.5 d 639
2004-08-19 07:41:48 C 22 22 16.72 +66 25 32.8 c H41
2004-08-19 07:49:47 C 22 22 15.23 +66 25 44.8 c H41
2004-08-19 07:51:23 C 22 22 14.98 +66 25 47.2 c H41
2004-08-19 07:53:06 C 22 22 14.73 +66 25 49.1 c H41
2004-08-19 07:54:46 C 22 22 14.43 +66 25 52.0 c H41
2004-08-19 20:25:42 C 22 20 00.40 +66 44 19.8 c 938
2004-08-19 21:21:29 C 22 19 50.00 +66 45 43.6 c 938
2004-08-20 03:22:07 C 22 18 43.29 +66 54 28.7 c 762
2004-08-20 03:32:57 C 22 18 41.24 +66 54 44.4 c 762
2004-08-20 03:37:09 C 22 18 40.44 +66 54 50.4 c 762
2004-08-20 04:32:02 C 22 18 29.94 +66 56 10.9 c 762
2004-08-20 12:58:37 C 22 16 55.84 +67 08 15.6 m 379
2004-08-20 13:02:54 C 22 16 54.99 +67 08 21.6 m 379
2004-08-20 13:09:21 C 22 16 53.78 +67 08 31.1 m 379
2004-08-20 13:13:40 C 22 16 52.95 +67 08 37.3 m 379
2004-08-20 22:06:02 C 22 15 11.77 +67 21 03.2 17.5 i 057
2004-08-20 22:09:31 C 22 15 11.04 +67 21 07.9 15.6 i 057
2004-08-20 22:10:52 C 22 15 10.80 +67 21 10.2 15.6 i 057
2004-08-20 22:12:19 C 22 15 10.54 +67 21 11.9 15.6 i 057
2004-08-23 21:37:02 C 22 00 55.25 +68 52 44.8 c A48
2004-08-23 21:42:14 C 22 00 54.13 +68 52 50.9 c A48
2004-08-23 21:47:24 C 22 00 53.02 +68 52 57.1 c A48
2004-08-24 06:00:18 C 21 59 09.22 +69 02 31.9 c H41
2004-08-24 06:01:59 C 21 59 08.80 +69 02 34.1 c H41
2004-08-24 06:03:16 C 21 59 08.54 +69 02 35.5 c H41
2004-08-24 06:04:35 C 21 59 08.27 +69 02 37.1 c H41
2004-08-24 06:05:52 C 21 59 07.95 +69 02 38.5 c H41
2004-08-25 13:15:44 C 21 52 28.19 +69 37 05.2 m 379
2004-08-25 13:17:24 C 21 52 27.76 +69 37 06.7 m 379
2004-08-26 06:32:25 C 21 48 39.69 +69 54 56.8 c H41
2004-08-26 06:35:09 C 21 48 39.09 +69 54 59.6 c H41
2004-08-26 06:36:37 C 21 48 38.76 +69 55 00.9 c H41
2004-08-26 06:38:01 C 21 48 38.42 +69 55 02.2 c H41
2004-08-26 06:39:42 C 21 48 38.04 +69 55 04.0 c H41
2004-08-27 04:48:39 C 21 43 42.34 +70 16 41.8 c H41
2004-08-27 04:49:48 C 21 43 42.06 +70 16 42.8 c H41
2004-08-27 04:51:16 C 21 43 41.74 +70 16 44.3 c H41
2004-08-27 04:52:22 C 21 43 41.48 +70 16 45.3 c H41
2004-08-27 04:53:49 C 21 43 41.12 +70 16 46.5 c H41
2004-08-28 04:57:45 C 21 38 13.01 +70 38 39.9 c H41
2004-08-28 04:58:54 C 21 38 12.75 +70 38 41.0 c H41
2004-08-28 05:00:04 C 21 38 12.44 +70 38 41.9 c H41