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
2015-08-27 01:55:21 C 17 24 48.64 -03 31 36.5 u H21
2015-08-27 01:57:52 C 17 24 48.75 -03 31 31.8 u H21
2015-08-28 01:55:26 C 17 25 53.20 -02 48 06.0 u H21
2015-08-28 01:57:42 C 17 25 53.31 -02 48 01.9 u H21
2015-08-28 02:00:06 C 17 25 53.41 -02 47 57.5 u H21
2015-08-28 02:02:37 C 17 25 53.53 -02 47 53.2 u H21
2015-08-28 02:05:08 C 17 25 53.62 -02 47 48.7 u H21
2015-08-28 02:07:39 C 17 25 53.74 -02 47 44.3 u H21
2015-08-28 02:10:10 C 17 25 53.84 -02 47 39.7 u H21
2015-08-28 02:12:40 C 17 25 53.96 -02 47 35.2 u H21
2015-08-28 02:15:11 C 17 25 54.06 -02 47 30.5 u H21
2015-08-28 02:17:41 C 17 25 54.17 -02 47 26.1 u H21
2015-08-28 02:20:12 C 17 25 54.27 -02 47 21.7 u H21
2015-08-28 02:22:43 C 17 25 54.39 -02 47 17.3 u H21
2015-08-28 02:25:13 C 17 25 54.48 -02 47 12.9 u H21
2015-08-28 02:27:44 C 17 25 54.59 -02 47 08.4 u H21
2015-08-28 02:30:29 C 17 25 54.71 -02 47 03.2 u H21
2015-08-28 02:54:02 C 17 25 55.69 -02 46 21.5 u H21
2015-08-28 02:56:06 C 17 25 55.77 -02 46 17.9 u H21
2015-08-28 02:58:10 C 17 25 55.87 -02 46 14.4 u H21
2015-08-28 03:00:13 C 17 25 55.96 -02 46 10.4 u H21
2015-08-28 03:02:17 C 17 25 56.05 -02 46 06.8 u H21
2015-08-28 03:04:21 C 17 25 56.13 -02 46 03.2 u H21
2015-08-28 03:06:25 C 17 25 56.22 -02 45 59.7 u H21
2015-08-28 03:08:29 C 17 25 56.31 -02 45 55.8 u H21
2015-08-28 03:10:33 C 17 25 56.39 -02 45 52.2 u H21
2015-08-28 03:12:37 C 17 25 56.49 -02 45 48.4 u H21
2015-08-28 03:14:41 C 17 25 56.58 -02 45 44.5 u H21
2015-08-28 03:16:44 C 17 25 56.66 -02 45 41.0 u H21
2015-08-28 03:18:48 C 17 25 56.76 -02 45 37.4 u H21
2015-08-28 03:20:52 C 17 25 56.84 -02 45 33.7 u H21
2015-08-28 03:22:56 C 17 25 56.93 -02 45 29.8 u H21
2015-08-28 03:25:00 C 17 25 57.02 -02 45 26.1 u H21
2015-08-28 03:27:04 C 17 25 57.11 -02 45 22.6 u H21
2015-08-28 03:29:08 C 17 25 57.20 -02 45 19.0 u H21
2015-08-28 03:31:12 C 17 25 57.29 -02 45 15.1 u H21
2015-08-28 03:33:03 C 17 25 57.37 -02 45 12.0 u H21
2015-08-28 03:34:54 C 17 25 57.44 -02 45 08.6 u H21
2015-08-28 21:06:47 C 17 26 45.66 -02 14 15.8 q 160
2015-08-28 21:08:59 C 17 26 45.76 -02 14 12.0 q 160
2015-08-28 21:11:09 C 17 26 45.85 -02 14 08.2 q 160
2015-08-29 19:19:17 C 17 27 48.15 -01 36 05.0 q 160
2015-08-29 19:22:05 C 17 27 48.28 -01 36 00.3 q 160
2015-08-29 19:24:52 C 17 27 48.40 -01 35 55.5 q 160
2015-08-30 06:14:33 C 17 28 19.183 -01 17 36.77 L F51
2015-08-30 06:30:57 C 17 28 19.909 -01 17 09.28 L F51
2015-08-30 06:47:20 C 17 28 20.627 -01 16 41.89 L F51
2015-08-31 01:14:02 C 17 29 14.00 -00 46 16.9 u H21
2015-08-31 01:16:33 C 17 29 14.12 -00 46 12.8 u H21
2015-08-31 01:19:04 C 17 29 14.22 -00 46 08.6 u H21