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
2004-06-18 09:33:47 C 23 17 36.63 -00 54 39.0 16.7 c 704
2004-06-18 09:48:26 C 23 17 37.14 -00 54 02.2 16.8 c 704
2004-06-18 10:02:55 C 23 17 37.61 -00 53 25.6 16.9 c 704
2004-06-20 08:54:17 C 23 19 14.82 +01 06 41.8 15.8 d H72
2004-06-20 08:56:31 C 23 19 14.88 +01 06 47.7 15.9 d H72
2004-06-20 08:58:44 C 23 19 14.87 +01 06 54.1 15.8 d H72
2004-06-20 09:00:58 C 23 19 14.91 +01 06 59.5 15.7 d H72
2004-06-20 09:18:12 C 23 19 15.76 +01 07 42.3 o 699
2004-06-20 09:46:10 C 23 19 16.65 +01 08 55.0 o 699
2004-06-20 10:14:10 C 23 19 17.54 +01 10 07.7 o 699
2004-06-20 10:42:07 C 23 19 18.40 +01 11 21.1 o 699
2004-06-22 18:17:35 C 23 21 04.68 +03 38 37.0 r 379
2004-06-22 18:26:11 C 23 21 04.92 +03 39 00.0 r 379
2004-06-22 18:28:21 C 23 21 05.00 +03 39 05.2 r 379
2004-06-27 00:40:17 C 23 23 54.78 +08 22 33.7 c A06
2004-06-27 00:41:49 C 23 23 54.75 +08 22 38.6 c A06
2004-06-29 07:57:06 C 23 25 11.41 +11 02 24.7 r H41
2004-06-29 08:01:58 C 23 25 11.53 +11 02 39.1 r H41
2004-06-29 08:13:35 C 23 25 11.78 +11 03 12.9 r H41
2004-06-29 08:15:10 C 23 25 11.77 +11 03 17.6 r H41
2004-06-29 08:16:37 C 23 25 11.79 +11 03 22.7 r H41
2004-07-04 01:53:36 C 23 27 13.85 +16 44 25.6 r 170
2004-07-04 01:56:15 C 23 27 13.90 +16 44 33.8 r 170
2004-07-04 01:58:27 C 23 27 13.93 +16 44 40.6 r 170
2004-07-06 07:50:16 C 23 27 53.63 +19 31 19.4 r H41
2004-07-06 07:51:54 C 23 27 53.65 +19 31 24.6 r H41
2004-07-06 07:54:00 C 23 27 53.67 +19 31 31.2 r H41
2004-07-06 07:55:19 C 23 27 53.64 +19 31 35.7 r H41
2004-07-06 07:56:56 C 23 27 53.68 +19 31 40.4 r H41
2004-07-08 07:59:20 C 23 28 18.04 +22 02 20.0 r H41
2004-07-08 08:01:07 C 23 28 18.07 +22 02 25.7 r H41
2004-07-08 08:02:38 C 23 28 18.06 +22 02 30.5 r H41
2004-07-08 08:04:23 C 23 28 18.08 +22 02 35.9 r H41
2004-07-08 08:05:53 C 23 28 18.06 +22 02 40.6 r H41
2004-07-12 08:36:54 C 23 28 32.57 +27 09 06.5 r H41
2004-07-12 08:38:35 C 23 28 32.55 +27 09 11.8 r H41
2004-07-12 08:40:06 C 23 28 32.55 +27 09 16.7 r H41
2004-07-12 08:43:35 C 23 28 32.54 +27 09 27.6 r H41
2004-07-12 08:45:05 C 23 28 32.52 +27 09 32.7 r H41
2004-07-13 01:44:11 C 23 28 30.10 +28 03 41.6 c J81
2004-07-13 01:59:56 C 23 28 29.96 +28 04 32.4 c J81
2004-07-13 02:20:15 C 23 28 29.88 +28 05 37.1 c J81
2004-07-13 08:34:18 C 23 28 28.48 +28 25 32.3 r H41
2004-07-13 08:36:38 C 23 28 28.47 +28 25 39.9 r H41
2004-07-13 08:38:06 C 23 28 28.47 +28 25 44.6 r H41
2004-07-13 08:39:39 C 23 28 28.43 +28 25 49.4 r H41
2004-07-13 17:09:19 C 23 28 26.21 +28 52 56.4 r 379
2004-07-13 17:11:29 C 23 28 26.17 +28 53 02.7 r 379
2004-07-13 17:15:46 C 23 28 26.14 +28 53 17.4 r 379
2004-07-13 17:20:04 C 23 28 26.09 +28 53 30.2 r 379