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
2004-09-04 06:22:50 C 20 58 16.32 +72 27 40.9 c H41
2004-09-04 06:24:05 C 20 58 16.00 +72 27 41.3 c H41
2004-09-04 06:25:19 C 20 58 15.75 +72 27 42.0 c H41
2004-09-05 06:42:03 C 20 52 33.49 +72 37 16.7 c H41
2004-09-05 06:44:04 C 20 52 33.03 +72 37 17.5 c H41
2004-09-05 06:45:24 C 20 52 32.68 +72 37 17.9 c H41
2004-09-05 06:47:05 C 20 52 32.31 +72 37 18.7 c H41
2004-09-05 06:48:31 C 20 52 31.98 +72 37 19.2 c H41
2004-09-05 19:19:07 C 20 49 39.29 +72 41 42.3 d 557
2004-09-05 19:47:51 C 20 49 32.41 +72 41 52.2 d 557
2004-09-05 20:16:34 C 20 49 25.54 +72 42 02.0 d 557
2004-09-05 20:48:29 C 20 49 17.90 +72 42 12.7 d 557
2004-09-05 21:11:08 C 20 49 12.65 +72 42 20.1 c 127
2004-09-05 21:16:30 C 20 49 11.37 +72 42 21.8 c 127
2004-09-05 21:21:52 C 20 49 10.11 +72 42 23.7 c 127
2004-09-05 21:23:18 C 20 49 09.56 +72 42 24.3 d 557
2004-09-05 21:42:27 C 20 49 04.98 +72 42 30.5 d 557
2004-09-05 22:17:22 C 20 48 56.64 +72 42 41.8 d 557
2004-09-05 23:01:07 C 20 48 46.22 +72 42 55.6 d 557
2004-09-05 23:35:19 C 20 48 38.10 +72 43 06.1 d 557
2004-09-06 00:04:02 C 20 48 31.29 +72 43 14.9 d 557
2004-09-06 00:32:45 C 20 48 24.52 +72 43 23.5 d 557
2004-09-06 01:08:40 C 20 48 16.09 +72 43 34.2 d 557
2004-09-06 01:37:23 C 20 48 09.37 +72 43 42.6 d 557
2004-09-06 02:08:52 C 20 48 02.03 +72 43 51.9 d 557
2004-09-06 02:40:48 C 20 47 54.66 +72 44 01.1 d 557
2004-09-06 06:51:00 C 20 46 57.16 +72 45 27.0 c H41
2004-09-06 06:52:25 C 20 46 56.81 +72 45 27.6 c H41
2004-09-06 06:53:47 C 20 46 56.49 +72 45 27.6 c H41
2004-09-06 06:55:02 C 20 46 56.19 +72 45 28.2 c H41
2004-09-06 06:56:07 C 20 46 55.97 +72 45 28.5 c H41
2004-09-06 19:12:14 C 20 44 09.04 +72 49 07.0 d 557
2004-09-06 19:37:48 C 20 44 03.03 +72 49 14.4 d 557
2004-09-06 20:30:36 C 20 43 50.72 +72 49 29.2 c 127
2004-09-06 20:36:15 C 20 43 49.40 +72 49 30.8 c 127
2004-09-06 20:41:21 C 20 43 48.22 +72 49 32.2 c 127
2004-09-06 20:46:31 C 20 43 46.98 +72 49 33.7 c 127
2004-09-06 20:48:50 C 20 43 46.27 +72 49 34.7 d 557
2004-09-06 21:10:14 C 20 43 41.16 +72 49 41.1 d 118
2004-09-06 21:11:11 C 20 43 41.00 +72 49 40.9 d 557
2004-09-06 21:14:37 C 20 43 40.12 +72 49 42.3 d 118
2004-09-06 21:19:03 C 20 43 39.08 +72 49 43.5 d 118
2004-09-06 21:23:28 C 20 43 38.02 +72 49 44.6 d 118
2004-09-06 21:36:42 C 20 43 34.99 +72 49 47.9 d 557
2004-09-06 22:10:30 C 20 43 27.07 +72 49 57.0 d 557
2004-09-06 22:42:16 C 20 43 19.59 +72 50 05.3 d 557
2004-09-06 23:10:59 C 20 43 12.87 +72 50 12.7 d 557
2004-09-06 23:50:51 C 20 43 03.56 +72 50 22.8 d 557
2004-09-07 00:23:04 C 20 42 56.09 +72 50 30.8 d 557
2004-09-07 01:23:21 C 20 42 42.13 +72 50 45.5 d 118