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
2014-03-15 01:21:57 C 04 54 53.23 +32 05 13.8 u H21
2014-03-15 01:25:21 C 04 54 53.49 +32 05 12.2 u H21
2014-03-18 01:24:18 C 05 00 19.89 +31 23 58.6 u H21
2014-03-18 01:28:31 C 05 00 20.27 +31 23 55.6 u H21
2014-03-19 06:35:28 C 05 02 32.236 +31 07 42.25 L F51
2014-03-19 06:43:38 C 05 02 32.844 +31 07 37.65 L F51
2014-12-29 08:03:02 C 13 23 38.98 -43 55 47.6 18.3 q W95
2014-12-29 08:12:33 C 13 23 39.73 -43 55 56.5 18.0 q W95
2014-12-29 08:22:05 C 13 23 40.64 -43 56 07.5 18.1 q W95
2014-12-29 08:31:35 C 13 23 41.43 -43 56 17.2 18.7 q W95
2015-03-06 22:47:07 C 16 48 31.27 -68 48 06.7 o K95
2015-03-06 23:10:26 C 16 48 35.54 -68 48 22.9 o K95
2015-03-20 06:24:40 S 17 51 55.634 -71 51 38.63 L C51
2015-03-20 12:42:57 S 17 53 15.502 -71 54 36.40 L C51
2015-03-20 15:52:00 S 17 53 55.45 -71 56 06.7 L C51
2015-03-20 19:01:14 S 17 54 35.65 -71 57 35.3 L C51
2015-03-21 01:19:20 S 17 55 55.74 -72 00 31.4 L C51
2015-03-21 01:19:31 S 17 55 55.78 -72 00 31.0 L C51
2015-03-21 02:53:57 S 17 56 15.86 -72 01 15.2 L C51
2015-03-21 04:28:34 S 17 56 35.930 -72 01 59.12 L C51
2015-03-21 06:03:00 S 17 56 56.093 -72 02 42.50 L C51
2015-03-21 06:03:11 S 17 56 56.129 -72 02 42.32 L C51
2015-03-21 07:37:37 S 17 57 16.246 -72 03 25.99 L C51
2015-03-21 09:12:15 S 17 57 36.103 -72 04 09.62 L C51
2015-03-21 10:46:52 S 17 57 56.441 -72 04 52.50 L C51
2015-03-21 13:55:55 S 17 58 36.70 -72 06 19.1 L C51
2015-03-21 15:30:32 S 17 58 56.84 -72 07 02.5 L C51
2015-03-21 17:04:57 S 17 59 16.94 -72 07 45.8 L C51
2015-03-21 18:39:35 S 17 59 37.12 -72 08 27.9 L C51
2015-03-21 20:14:12 S 17 59 57.30 -72 09 10.7 L C51
2015-03-21 21:48:38 S 18 00 17.47 -72 09 53.3 L C51
2015-03-21 23:23:15 S 18 00 37.73 -72 10 35.7 L C51
2015-03-22 00:57:52 S 18 00 57.83 -72 11 18.5 L C51
2015-03-22 05:41:32 S 18 01 58.536 -72 13 25.18 L C51
2015-03-22 07:15:58 S 18 02 18.859 -72 14 07.84 L C51
2015-03-22 08:50:35 S 18 02 39.031 -72 14 49.31 L C51
2015-03-22 10:25:12 S 18 02 59.369 -72 15 31.14 L C51
2015-03-22 13:34:15 S 18 03 39.77 -72 16 54.3 L C51
2015-03-22 16:43:29 S 18 04 20.41 -72 18 17.2 L C51
2015-03-22 19:52:33 S 18 05 01.00 -72 19 40.2 L C51
2015-03-22 23:01:35 S 18 05 41.60 -72 21 02.4 L C51
2015-03-23 05:19:41 S 18 07 02.926 -72 23 45.71 L C51
2015-04-14 07:31:28 C 20 01 54.34 -74 45 23.0 r Y00
2015-04-14 07:36:24 C 20 01 55.22 -74 45 23.9 r Y00
2015-04-14 07:41:18 C 20 01 56.18 -74 45 24.4 r Y00
2015-08-14 01:44:59 C 17 13 39.51 -15 14 13.8 u H21
2015-08-14 01:47:30 C 17 13 39.56 -15 14 06.7 u H21
2015-08-14 01:55:03 C 17 13 39.72 -15 13 46.4 u H21
2015-08-14 01:57:35 C 17 13 39.78 -15 13 39.5 u H21
2015-08-14 02:00:06 C 17 13 39.83 -15 13 32.7 u H21