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
2004-07-13 17:35:37 C 23 28 25.97 +28 54 20.3 r 379
2004-07-13 17:37:45 C 23 28 26.01 +28 54 27.1 r 379
2004-07-13 17:39:54 C 23 28 26.00 +28 54 34.1 r 379
2004-07-13 17:44:13 C 23 28 25.94 +28 54 47.2 r 379
2004-07-14 08:14:15 C 23 28 21.25 +29 41 02.7 r H41
2004-07-14 08:15:51 C 23 28 21.25 +29 41 07.9 r H41
2004-07-14 08:17:20 C 23 28 21.23 +29 41 12.7 r H41
2004-07-14 08:18:48 C 23 28 21.23 +29 41 17.2 r H41
2004-07-14 08:20:12 C 23 28 21.20 +29 41 21.9 r H41
2004-07-14 17:10:46 C 23 28 17.57 +30 09 34.2 r 379
2004-07-14 17:12:55 C 23 28 17.53 +30 09 41.1 r 379
2004-07-14 17:15:05 C 23 28 17.53 +30 09 48.0 r 379
2004-07-14 17:17:13 C 23 28 17.48 +30 09 54.8 r 379
2004-07-14 17:19:22 C 23 28 17.51 +30 10 01.8 r 379
2004-07-14 17:21:32 C 23 28 17.50 +30 10 08.4 r 379
2004-07-14 17:23:40 C 23 28 17.44 +30 10 15.7 r 379
2004-07-14 17:25:49 C 23 28 17.44 +30 10 22.5 r 379
2004-07-14 17:27:59 C 23 28 17.39 +30 10 29.1 r 379
2004-07-14 22:35:57 C 23 28 15.53 +30 26 45.7 c A48
2004-07-14 22:39:58 C 23 28 15.48 +30 26 58.6 c A48
2004-07-14 22:44:02 C 23 28 15.49 +30 27 12.1 c A48
2004-07-14 22:48:04 C 23 28 15.42 +30 27 24.5 c A48
2004-07-15 08:36:54 C 23 28 10.18 +30 58 45.7 r H41
2004-07-15 08:38:38 C 23 28 10.17 +30 58 51.1 r H41
2004-07-15 08:40:25 C 23 28 10.16 +30 58 56.9 r H41
2004-07-15 08:42:13 C 23 28 10.11 +30 59 02.8 r H41
2004-07-15 16:45:33 C 23 28 05.85 +31 24 41.7 r 379
2004-07-15 16:47:41 C 23 28 05.80 +31 24 47.7 r 379
2004-07-15 23:27:00 C 23 28 02.04 +31 45 54.8 r A30
2004-07-15 23:29:38 C 23 28 02.00 +31 46 02.2 r A30
2004-07-15 23:32:15 C 23 28 01.99 +31 46 11.1 r A30
2004-07-15 23:36:23 C 23 28 01.93 +31 46 24.4 r A30
2004-07-15 23:46:58 C 23 28 01.78 +31 46 58.2 r A16
2004-07-15 23:50:36 C 23 28 01.76 +31 47 09.4 r A16
2004-07-15 23:53:08 C 23 28 01.72 +31 47 17.7 r A16
2004-07-15 23:56:32 C 23 28 01.69 +31 47 28.2 r A16
2004-07-15 23:59:32 C 23 28 01.66 +31 47 38.2 r A16
2004-07-16 17:19:21 C 23 27 49.62 +32 42 46.5 r 379
2004-07-16 17:23:40 C 23 27 49.56 +32 43 00.1 r 379
2004-07-16 17:27:57 C 23 27 49.51 +32 43 14.2 r 379
2004-07-16 17:30:07 C 23 27 49.46 +32 43 21.1 r 379
2004-07-16 17:32:15 C 23 27 49.42 +32 43 27.4 r 379
2004-07-16 17:34:24 C 23 27 49.41 +32 43 34.2 r 379
2004-07-16 17:36:34 C 23 27 49.39 +32 43 41.1 r 379
2004-07-16 17:38:43 C 23 27 49.33 +32 43 48.0 r 379
2004-07-16 23:14:00 C 23 27 45.53 +33 01 25.8 r 240
2004-07-16 23:15:06 C 23 27 45.51 +33 01 29.2 r 240
2004-07-16 23:19:28 C 23 27 45.45 +33 01 43.3 r 240
2004-07-16 23:22:45 C 23 27 45.40 +33 01 53.7 r 240
2004-07-17 23:38:50 C 23 27 24.72 +34 18 43.0 r A16