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
2004-09-13 04:57:02 C 20 11 34.77 +73 09 26.2 c H41
2004-09-13 04:58:27 C 20 11 34.47 +73 09 26.1 c H41
2004-09-13 04:59:57 C 20 11 34.20 +73 09 26.3 c H41
2004-09-13 05:01:26 C 20 11 33.90 +73 09 26.1 c H41
2004-09-13 11:29:31 C 20 10 21.36 +73 09 24.1 m 379
2004-09-13 11:33:50 C 20 10 20.41 +73 09 24.1 m 379
2004-09-13 11:38:07 C 20 10 19.71 +73 09 24.2 m 379
2004-09-13 11:40:17 C 20 10 19.17 +73 09 24.1 m 379
2004-09-13 19:16:02 C 20 08 54.10 +73 09 13.2 d 557
2004-09-13 19:35:11 C 20 08 50.42 +73 09 12.7 d 557
2004-09-13 19:44:03 C 20 08 49.02 +73 09 13.6 c A30
2004-09-13 19:47:34 C 20 08 48.11 +73 09 13.7 c A30
2004-09-13 19:53:36 C 20 08 46.98 +73 09 12.2 c A30
2004-09-13 20:04:33 C 20 08 44.75 +73 09 12.0 d 557
2004-09-13 20:17:19 C 20 08 42.29 +73 09 11.6 d 557
2004-09-13 21:53:53 C 20 08 23.73 +73 09 08.0 d 557
2004-09-14 05:33:51 C 20 06 58.64 +73 08 54.1 c H41
2004-09-14 05:35:14 C 20 06 58.39 +73 08 54.4 c H41
2004-09-14 05:36:31 C 20 06 58.15 +73 08 54.0 c H41
2004-09-14 05:37:53 C 20 06 57.86 +73 08 54.0 c H41
2004-09-14 05:39:10 C 20 06 57.63 +73 08 53.9 c H41
2004-09-14 11:00:04 C 20 06 00.89 +73 08 42.5 m 379
2004-09-14 11:08:39 C 20 05 59.23 +73 08 42.4 m 379
2004-09-14 11:10:48 C 20 05 58.86 +73 08 41.8 m 379
2004-09-14 11:15:06 C 20 05 57.99 +73 08 42.1 m 379
2004-09-14 11:19:25 C 20 05 57.09 +73 08 41.5 m 379
2004-09-14 11:23:42 C 20 05 56.30 +73 08 41.8 m 379
2004-09-15 04:10:11 C 20 02 56.38 +73 07 41.8 c H41
2004-09-15 04:11:47 C 20 02 56.09 +73 07 42.1 c H41
2004-09-15 04:13:09 C 20 02 55.86 +73 07 41.8 c H41
2004-09-15 04:14:17 C 20 02 55.66 +73 07 41.7 c H41
2004-09-15 04:15:21 C 20 02 55.46 +73 07 41.5 c H41
2004-09-16 06:46:26 C 19 58 23.12 +73 05 19.7 c H41
2004-09-16 06:48:11 C 19 58 22.84 +73 05 19.5 c H41
2004-09-16 06:49:38 C 19 58 22.59 +73 05 19.3 c H41
2004-09-16 06:50:49 C 19 58 22.41 +73 05 19.1 c H41
2004-09-17 06:41:05 C 19 54 31.14 +73 02 32.2 c H41
2004-09-17 06:42:51 C 19 54 30.89 +73 02 32.0 c H41
2004-09-17 06:44:55 C 19 54 30.55 +73 02 31.6 c H41
2004-09-17 06:46:14 C 19 54 30.33 +73 02 31.5 c H41
2004-09-17 06:47:19 C 19 54 30.16 +73 02 31.1 c H41
2004-09-18 07:02:32 C 19 50 47.43 +72 59 01.6 c H41
2004-09-18 07:03:49 C 19 50 47.25 +72 59 01.6 c H41
2004-09-18 07:05:07 C 19 50 46.98 +72 59 01.1 c H41
2004-09-18 07:08:10 C 19 50 46.60 +72 59 00.6 c H41
2004-09-18 18:05:05 C 19 49 12.45 +72 57 18.0 d 048
2004-09-18 18:06:20 C 19 49 12.33 +72 57 17.6 d 048
2004-09-18 18:07:35 C 19 49 12.16 +72 57 17.6 d 048
2004-09-18 18:08:49 C 19 49 11.98 +72 57 17.5 d 048
2004-09-18 18:10:03 C 19 49 11.77 +72 57 17.4 d 048