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
2015-09-25 00:42:57 C 18 04 33.56 +11 02 15.9 u H21
2015-09-25 00:44:57 C 18 04 33.69 +11 02 17.6 u H21
2015-09-25 00:46:57 C 18 04 33.82 +11 02 19.3 u H21
2015-09-25 00:48:57 C 18 04 33.96 +11 02 21.0 u H21
2015-09-25 00:50:57 C 18 04 34.09 +11 02 22.7 u H21
2015-09-25 00:52:56 C 18 04 34.22 +11 02 24.5 u H21
2015-09-25 00:54:44 C 18 04 34.34 +11 02 25.9 u H21
2015-09-25 00:56:32 C 18 04 34.46 +11 02 27.5 u H21
2015-09-27 01:58:36 C 18 07 57.38 +11 43 39.8 u H21
2015-09-27 02:01:06 C 18 07 57.56 +11 43 41.9 u H21
2015-09-27 02:03:32 C 18 07 57.72 +11 43 43.9 u H21
2015-09-27 02:05:34 C 18 07 57.86 +11 43 45.5 u H21
2015-09-27 02:07:37 C 18 07 58.00 +11 43 47.2 u H21
2015-09-27 02:09:40 C 18 07 58.14 +11 43 48.9 u H21
2015-09-27 02:11:43 C 18 07 58.28 +11 43 50.6 u H21
2015-09-27 02:13:46 C 18 07 58.42 +11 43 52.3 u H21
2015-09-27 02:15:49 C 18 07 58.55 +11 43 53.9 u H21
2015-09-27 02:17:52 C 18 07 58.69 +11 43 55.6 u H21
2015-09-27 02:19:54 C 18 07 58.83 +11 43 57.2 u H21
2015-09-27 02:22:28 C 18 07 59.00 +11 43 59.4 u H21
2015-10-01 18:04:46 C 18 15 56.94 +13 11 54.6 q G34
2015-10-01 18:09:02 C 18 15 57.23 +13 11 57.7 q G34
2015-10-01 18:13:16 C 18 15 57.52 +13 12 00.9 q G34
2015-10-01 18:17:32 C 18 15 57.83 +13 12 04.4 q G34
2015-10-01 18:21:47 C 18 15 58.13 +13 12 07.1 q G34
2015-10-03 17:56:26 C 18 19 28.00 +13 47 22.3 q 160
2015-10-03 17:58:42 C 18 19 28.17 +13 47 23.9 q 160
2015-10-03 18:00:58 C 18 19 28.34 +13 47 25.6 q 160
2015-10-05 00:35:05 C 18 21 45.20 +14 09 26.6 u H21
2015-10-05 00:37:50 C 18 21 45.39 +14 09 28.9 u H21
2015-10-05 00:41:10 C 18 21 45.64 +14 09 31.2 u H21
2015-10-05 00:43:31 C 18 21 45.81 +14 09 33.0 u H21
2015-10-05 00:47:15 C 18 21 46.08 +14 09 35.3 u H21
2015-10-05 00:49:59 C 18 21 46.28 +14 09 37.4 u H21
2015-10-05 00:52:56 C 18 21 46.49 +14 09 39.4 u H21
2015-10-05 00:54:30 C 18 21 46.62 +14 09 40.6 u H21
2015-10-11 00:57:31 C 18 32 53.61 +15 47 40.0 u H21
2015-10-11 00:59:35 C 18 32 53.77 +15 47 41.3 u H21
2015-10-11 01:01:39 C 18 32 53.94 +15 47 42.7 u H21
2015-10-11 01:03:43 C 18 32 54.10 +15 47 43.9 u H21
2015-10-11 01:05:47 C 18 32 54.25 +15 47 45.3 u H21
2015-10-11 01:07:50 C 18 32 54.41 +15 47 46.5 u H21
2015-10-11 01:09:54 C 18 32 54.57 +15 47 47.9 u H21
2015-10-11 01:11:58 C 18 32 54.73 +15 47 49.3 u H21
2015-10-11 01:14:02 C 18 32 54.89 +15 47 50.5 u H21
2015-10-11 01:16:04 C 18 32 55.04 +15 47 51.9 u H21
2015-10-11 01:18:07 C 18 32 55.19 +15 47 53.2 u H21
2015-10-11 01:20:10 C 18 32 55.36 +15 47 54.6 u H21
2015-10-11 01:22:13 C 18 32 55.52 +15 47 56.0 u H21
2015-10-13 01:15:13 C 18 36 45.45 +16 18 41.1 u H21