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
2015-08-14 02:02:37 C 17 13 39.89 -15 13 25.8 u H21
2015-08-14 02:05:08 C 17 13 39.94 -15 13 19.1 u H21
2015-08-14 02:07:38 C 17 13 39.99 -15 13 12.4 u H21
2015-08-14 02:09:38 C 17 13 40.03 -15 13 06.8 u H21
2015-08-15 01:57:59 C 17 14 17.89 -14 09 38.1 u H21
2015-08-15 02:00:30 C 17 14 17.95 -14 09 31.5 u H21
2015-08-15 02:03:01 C 17 14 18.01 -14 09 24.9 u H21
2015-08-15 02:05:32 C 17 14 18.07 -14 09 18.3 u H21
2015-08-15 02:08:03 C 17 14 18.13 -14 09 11.6 u H21
2015-08-15 02:10:35 C 17 14 18.18 -14 09 05.0 u H21
2015-08-15 02:13:05 C 17 14 18.24 -14 08 58.4 u H21
2015-08-15 02:15:36 C 17 14 18.30 -14 08 51.9 u H21
2015-08-15 02:18:07 C 17 14 18.36 -14 08 45.1 u H21
2015-08-15 02:20:38 C 17 14 18.42 -14 08 38.5 u H21
2015-08-15 02:23:10 C 17 14 18.48 -14 08 31.8 u H21
2015-08-15 02:25:41 C 17 14 18.54 -14 08 25.2 u H21
2015-08-15 02:28:12 C 17 14 18.60 -14 08 18.5 u H21
2015-08-15 02:30:43 C 17 14 18.66 -14 08 11.9 u H21
2015-08-15 02:34:00 C 17 14 18.74 -14 08 03.3 u H21
2015-08-16 01:39:05 C 17 14 58.09 -13 08 12.8 u H21
2015-08-16 01:41:36 C 17 14 58.15 -13 08 06.3 u H21
2015-08-16 01:44:07 C 17 14 58.21 -13 07 59.9 u H21
2015-08-16 01:46:38 C 17 14 58.28 -13 07 53.5 u H21
2015-08-16 01:49:09 C 17 14 58.34 -13 07 47.0 u H21
2015-08-16 01:51:41 C 17 14 58.40 -13 07 40.6 u H21
2015-08-16 01:54:12 C 17 14 58.47 -13 07 34.1 u H21
2015-08-16 01:56:43 C 17 14 58.53 -13 07 27.7 u H21
2015-08-16 01:58:59 C 17 14 58.59 -13 07 22.0 u H21
2015-08-21 01:34:20 C 17 18 56.21 -08 22 55.0 u H21
2015-08-21 01:36:51 C 17 18 56.30 -08 22 49.4 u H21
2015-08-21 01:39:21 C 17 18 56.38 -08 22 43.9 u H21
2015-08-21 01:41:52 C 17 18 56.47 -08 22 38.4 u H21
2015-08-21 01:44:22 C 17 18 56.55 -08 22 32.8 u H21
2015-08-21 01:46:53 C 17 18 56.63 -08 22 27.3 u H21
2015-08-21 01:49:23 C 17 18 56.71 -08 22 21.7 u H21
2015-08-21 01:51:54 C 17 18 56.80 -08 22 16.2 u H21
2015-08-21 01:54:09 C 17 18 56.87 -08 22 11.3 u H21
2015-08-22 01:28:15 C 17 19 50.02 -07 30 57.4 u H21
2015-08-22 01:40:51 C 17 19 50.45 -07 30 30.3 u H21
2015-08-22 01:43:22 C 17 19 50.55 -07 30 24.9 u H21
2015-08-22 01:45:53 C 17 19 50.62 -07 30 19.5 u H21
2015-08-22 01:48:25 C 17 19 50.71 -07 30 14.2 u H21
2015-08-22 01:50:56 C 17 19 50.80 -07 30 08.7 u H21
2015-08-22 01:53:27 C 17 19 50.89 -07 30 03.2 u H21
2015-08-22 01:55:58 C 17 19 50.97 -07 29 57.9 u H21
2015-08-22 01:58:29 C 17 19 51.06 -07 29 52.4 u H21
2015-08-22 02:00:45 C 17 19 51.15 -07 29 47.6 u H21
2015-08-24 01:24:53 C 17 21 43.60 -05 51 18.6 u H21
2015-08-24 01:27:25 C 17 21 43.69 -05 51 13.3 u H21
2015-08-24 01:29:57 C 17 21 43.80 -05 51 08.4 u H21