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
2015-10-15 00:30:56 C 18 40 36.47 +16 48 17.6 u H21
2015-10-15 00:33:00 C 18 40 36.64 +16 48 19.0 u H21
2015-10-15 00:35:04 C 18 40 36.81 +16 48 20.2 u H21
2015-10-15 00:37:08 C 18 40 36.97 +16 48 21.5 u H21
2015-10-15 00:39:13 C 18 40 37.14 +16 48 22.8 u H21
2015-10-15 00:41:17 C 18 40 37.30 +16 48 24.1 u H21
2015-10-15 00:44:11 C 18 40 37.53 +16 48 25.8 u H21
2015-10-15 19:17:11 C 18 42 09.27 +16 59 51.3 w 458
2015-10-15 19:20:57 C 18 42 09.57 +16 59 55.2 w 458
2015-10-17 00:19:50 C 18 44 34.24 +17 17 33.9 u H21
2015-10-17 00:21:54 C 18 44 34.41 +17 17 35.3 u H21
2015-10-17 00:23:58 C 18 44 34.59 +17 17 36.6 u H21
2015-10-17 00:26:02 C 18 44 34.74 +17 17 37.7 u H21
2015-10-17 00:28:06 C 18 44 34.91 +17 17 38.9 u H21
2015-10-17 00:30:09 C 18 44 35.09 +17 17 40.1 u H21
2015-10-17 00:32:13 C 18 44 35.26 +17 17 41.4 u H21
2015-10-17 00:34:16 C 18 44 35.42 +17 17 42.6 u H21
2015-10-17 00:36:19 C 18 44 35.59 +17 17 43.9 u H21
2015-10-17 00:38:25 C 18 44 35.76 +17 17 45.1 u H21
2015-10-17 00:41:01 C 18 44 35.98 +17 17 46.6 u H21
2015-10-17 00:43:04 C 18 44 36.14 +17 17 47.9 u H21
2015-10-17 00:45:06 C 18 44 36.32 +17 17 49.1 u H21
2015-10-17 00:47:28 C 18 44 36.50 +17 17 50.5 u H21
2015-10-18 00:09:00 C 18 46 34.24 +17 31 54.8 q H21
2015-10-18 00:11:41 C 18 46 34.47 +17 31 56.4 q H21
2015-10-18 00:14:22 C 18 46 34.69 +17 31 57.9 q H21
2015-10-18 00:17:03 C 18 46 34.92 +17 31 59.4 q H21
2015-10-18 00:19:57 C 18 46 35.15 +17 32 01.1 q H21
2015-10-18 00:31:27 C 18 46 36.09 +17 32 08.1 q H21
2015-10-18 00:34:31 C 18 46 36.36 +17 32 09.9 q H21
2015-10-19 00:07:31 C 18 48 36.06 +17 46 12.2 q H21
2015-10-19 00:12:28 C 18 48 36.47 +17 46 15.3 q H21
2015-10-19 00:17:25 C 18 48 36.88 +17 46 18.2 q H21
2015-10-19 00:22:10 C 18 48 37.27 +17 46 21.0 q H21
2015-10-19 00:27:07 C 18 48 37.69 +17 46 23.7 q H21
2015-10-19 00:32:04 C 18 48 38.10 +17 46 26.7 q H21
2015-10-19 00:36:38 C 18 48 38.48 +17 46 29.5 q H21
2015-10-19 17:36:18 C 18 50 05.53 +17 56 31.4 q 160
2015-10-19 17:38:36 C 18 50 05.72 +17 56 32.8 q 160
2015-10-19 17:40:54 C 18 50 05.89 +17 56 34.1 q 160
2015-10-21 15:20:07 C 18 54 02.14 +18 23 11.4 16.6 q 168
2015-10-21 15:25:01 C 18 54 02.61 +18 23 14.4 16.0 q 168
2015-10-21 17:04:17 C 18 54 11.17 +18 24 11.9 15.9 q 168
2015-10-21 23:54:31 C 18 54 47.02 +18 28 10.6 u H21
2015-10-22 00:00:37 C 18 54 47.53 +18 28 14.3 u H21
2015-10-22 00:02:41 C 18 54 47.71 +18 28 15.6 u H21
2015-10-22 00:04:51 C 18 54 47.90 +18 28 16.9 u H21
2015-10-22 00:07:01 C 18 54 48.07 +18 28 18.0 u H21
2015-10-22 00:09:05 C 18 54 48.24 +18 28 19.2 u H21
2015-10-22 00:13:13 C 18 54 48.61 +18 28 21.7 u H21