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
2004-08-07 23:26:59 C 23 00 29.04 +57 49 11.9 o 160
2004-08-07 23:29:06 C 23 00 28.83 +57 49 16.8 o 160
2004-08-07 23:30:30 C 23 00 28.69 +57 49 19.9 o 160
2004-08-07 23:31:12 C 23 00 28.65 +57 49 21.5 o 160
2004-08-07 23:31:53 C 23 00 28.53 +57 49 23.0 o 160
2004-08-07 23:32:35 C 23 00 28.49 +57 49 24.6 o 160
2004-08-07 23:35:24 C 23 00 28.12 +57 49 31.0 o 160
2004-08-07 23:36:48 C 23 00 27.99 +57 49 34.1 o 160
2004-08-07 23:38:13 C 23 00 27.84 +57 49 37.4 o 160
2004-08-07 23:38:55 C 23 00 27.78 +57 49 39.3 o 160
2004-08-07 23:39:37 C 23 00 27.70 +57 49 40.6 o 160
2004-08-07 23:40:18 C 23 00 27.64 +57 49 42.2 o 160
2004-08-07 23:41:00 C 23 00 27.56 +57 49 44.0 o 160
2004-08-08 08:09:59 C 22 59 34.04 +58 08 57.1 c H41
2004-08-08 08:12:08 C 22 59 33.81 +58 09 02.1 c H41
2004-08-08 08:13:56 C 22 59 33.63 +58 09 06.1 c H41
2004-08-08 08:15:02 C 22 59 33.51 +58 09 08.6 c H41
2004-08-08 08:16:27 C 22 59 33.35 +58 09 11.8 c H41
2004-08-08 16:35:05 C 22 58 40.49 +58 27 48.5 m 379
2004-08-08 16:38:23 C 22 58 40.09 +58 27 55.8 m 379
2004-08-08 16:41:41 C 22 58 39.70 +58 28 03.1 m 379
2004-08-08 16:43:20 C 22 58 39.46 +58 28 07.0 m 379
2004-08-08 16:45:00 C 22 58 39.33 +58 28 10.5 m 379
2004-08-08 16:46:38 C 22 58 39.13 +58 28 14.4 m 379
2004-08-08 16:49:56 C 22 58 38.71 +58 28 22.0 m 379
2004-08-08 20:41:00 C 22 58 14.96 +58 36 48.0 c 118
2004-08-08 20:42:44 C 22 58 14.76 +58 36 52.0 c 118
2004-08-08 20:44:28 C 22 58 14.58 +58 36 56.0 c 118
2004-08-08 20:46:14 C 22 58 14.38 +58 36 59.8 c 118
2004-08-09 14:11:04 C 22 56 18.55 +59 15 17.2 m 379
2004-08-09 14:12:42 C 22 56 18.36 +59 15 20.5 m 379
2004-08-09 14:24:16 C 22 56 17.06 +59 15 45.9 m 379
2004-08-09 14:26:17 C 22 56 16.79 +59 15 50.4 m 379
2004-08-09 14:27:55 C 22 56 16.56 +59 15 54.1 m 379
2004-08-09 14:29:35 C 22 56 16.40 +59 15 58.2 m 379
2004-08-09 14:31:13 C 22 56 16.20 +59 16 01.2 m 379
2004-08-10 08:23:15 C 22 54 11.55 +59 54 22.5 c H41
2004-08-10 08:24:57 C 22 54 11.33 +59 54 26.3 c H41
2004-08-10 08:26:28 C 22 54 11.16 +59 54 29.2 c H41
2004-08-10 08:27:53 C 22 54 10.94 +59 54 32.2 c H41
2004-08-10 08:29:19 C 22 54 10.77 +59 54 35.3 c H41
2004-08-10 23:09:24 C 22 52 26.07 +60 25 21.5 c 118
2004-08-10 23:11:10 C 22 52 25.84 +60 25 25.1 c 118
2004-08-10 23:12:54 C 22 52 25.62 +60 25 28.7 c 118
2004-08-10 23:14:39 C 22 52 25.38 +60 25 32.6 c 118
2004-08-10 23:18:09 C 22 52 24.96 +60 25 39.7 c 118
2004-08-11 17:04:18 C 22 50 11.90 +61 02 15.2 o 379
2004-08-11 17:08:37 C 22 50 11.23 +61 02 24.3 o 379
2004-08-11 17:12:54 C 22 50 10.68 +61 02 32.4 o 379
2004-08-12 08:07:04 C 22 48 15.73 +61 32 30.2 c H41