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
2015-09-21 18:33:01 C 17 59 18.34 +09 52 47.9 q 160
2015-09-21 22:19:16 S 17 59 33.367 +09 56 21.80 L C51
2015-09-22 00:36:11 C 17 59 42.43 +09 58 22.2 u H21
2015-09-22 00:38:26 C 17 59 42.57 +09 58 24.3 u H21
2015-09-22 00:40:57 C 17 59 42.73 +09 58 26.6 u H21
2015-09-22 00:43:12 C 17 59 42.87 +09 58 28.7 u H21
2015-09-22 00:45:42 C 17 59 43.04 +09 58 30.9 u H21
2015-09-22 00:48:13 C 17 59 43.20 +09 58 33.2 u H21
2015-09-22 00:50:43 C 17 59 43.35 +09 58 35.4 u H21
2015-09-22 00:53:13 C 17 59 43.52 +09 58 37.8 u H21
2015-09-22 00:55:44 C 17 59 43.68 +09 58 40.1 u H21
2015-09-22 00:58:14 C 17 59 43.82 +09 58 42.2 u H21
2015-09-22 01:00:44 C 17 59 43.99 +09 58 44.8 u H21
2015-09-22 01:03:15 C 17 59 44.15 +09 58 47.0 u H21
2015-09-23 00:22:07 C 18 01 16.94 +10 20 02.1 r Y00
2015-09-23 00:30:01 C 18 01 17.54 +10 20 09.7 r Y00
2015-09-23 00:38:01 C 18 01 18.05 +10 20 15.5 r Y00
2015-09-23 01:23:17 C 18 01 21.36 +10 20 47.6 u H21
2015-09-23 01:26:29 C 18 01 21.58 +10 20 50.4 u H21
2015-09-23 01:28:26 C 18 01 21.70 +10 20 52.2 u H21
2015-09-23 01:30:24 C 18 01 21.84 +10 20 54.0 u H21
2015-09-23 01:32:21 C 18 01 21.97 +10 20 55.6 u H21
2015-09-23 01:34:19 C 18 01 22.09 +10 20 57.5 u H21
2015-09-23 01:36:17 C 18 01 22.20 +10 20 59.2 u H21
2015-09-23 01:38:14 C 18 01 22.34 +10 21 00.9 u H21
2015-09-23 01:40:12 C 18 01 22.48 +10 21 02.6 u H21
2015-09-23 01:42:10 C 18 01 22.60 +10 21 04.3 u H21
2015-09-23 01:44:07 C 18 01 22.72 +10 21 06.3 u H21
2015-09-23 01:46:28 C 18 01 22.87 +10 21 08.3 u H21
2015-09-24 00:48:37 C 18 02 56.04 +10 41 31.9 u H21
2015-09-24 00:50:38 C 18 02 56.17 +10 41 33.7 u H21
2015-09-24 00:52:38 C 18 02 56.30 +10 41 35.5 u H21
2015-09-24 00:54:40 C 18 02 56.43 +10 41 37.2 u H21
2015-09-24 00:56:41 C 18 02 56.56 +10 41 38.9 u H21
2015-09-24 00:58:42 C 18 02 56.70 +10 41 40.9 u H21
2015-09-24 00:59:48 C 18 02 56.77 +10 41 41.9 u H21
2015-09-24 01:01:49 C 18 02 56.88 +10 41 43.7 u H21
2015-09-24 01:03:50 C 18 02 57.02 +10 41 45.2 u H21
2015-09-24 01:05:18 C 18 02 57.12 +10 41 46.5 u H21
2015-09-24 01:06:39 C 18 02 57.22 +10 41 47.8 u H21
2015-09-24 01:08:39 C 18 02 57.34 +10 41 49.5 u H21
2015-09-24 01:10:41 C 18 02 57.48 +10 41 51.3 u H21
2015-09-24 01:12:30 C 18 02 57.60 +10 41 52.8 u H21
2015-09-24 01:14:19 C 18 02 57.72 +10 41 54.5 u H21
2015-09-25 00:30:55 C 18 04 32.77 +11 02 05.5 u H21
2015-09-25 00:32:55 C 18 04 32.90 +11 02 07.3 u H21
2015-09-25 00:34:56 C 18 04 33.03 +11 02 08.9 u H21
2015-09-25 00:36:56 C 18 04 33.16 +11 02 10.7 u H21
2015-09-25 00:38:57 C 18 04 33.30 +11 02 12.5 u H21
2015-09-25 00:40:57 C 18 04 33.43 +11 02 14.2 u H21