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
2004-08-03 07:40:47 C 23 10 30.25 +53 19 28.3 c H41
2004-08-03 07:42:30 C 23 10 30.15 +53 19 32.6 c H41
2004-08-03 07:43:58 C 23 10 30.00 +53 19 36.4 c H41
2004-08-04 07:21:37 C 23 08 37.20 +54 19 09.9 c H41
2004-08-04 07:25:25 C 23 08 36.86 +54 19 19.3 c H41
2004-08-04 07:27:04 C 23 08 36.70 +54 19 23.6 c H41
2004-08-04 07:28:31 C 23 08 36.56 +54 19 27.2 c H41
2004-08-04 07:29:58 C 23 08 36.47 +54 19 30.8 c H41
2004-08-04 07:31:24 C 23 08 36.35 +54 19 34.5 c H41
2004-08-05 07:43:16 C 23 06 32.88 +55 19 11.4 r H41
2004-08-05 07:46:09 C 23 06 32.61 +55 19 18.3 r H41
2004-08-05 07:49:26 C 23 06 32.29 +55 19 26.7 r H41
2004-08-05 07:51:47 C 23 06 32.07 +55 19 32.6 r H41
2004-08-05 07:55:39 C 23 06 31.72 +55 19 41.7 r H41
2004-08-05 08:22:25 C 23 06 29.55 +55 20 47.2 15.7 c 704
2004-08-05 08:36:06 C 23 06 28.24 +55 21 20.9 16.1 c 704
2004-08-05 08:49:45 C 23 06 26.97 +55 21 53.7 16.1 c 704
2004-08-05 09:04:08 C 23 06 25.51 +55 22 28.3 17.9 c 704
2004-08-06 06:22:12 C 23 04 30.56 +56 13 40.6 r H41
2004-08-06 06:23:49 C 23 04 30.42 +56 13 44.2 r H41
2004-08-06 06:25:29 C 23 04 30.24 +56 13 48.2 r H41
2004-08-06 06:26:53 C 23 04 30.00 +56 13 51.9 r H41
2004-08-06 23:10:58 C 23 02 54.58 +56 53 15.5 c 118
2004-08-06 23:14:19 C 23 02 54.24 +56 53 23.2 c 118
2004-08-06 23:19:21 C 23 02 53.73 +56 53 35.2 c 118
2004-08-06 23:24:24 C 23 02 53.22 +56 53 47.1 c 118
2004-08-07 08:04:49 C 23 02 01.75 +57 13 59.8 c H41
2004-08-07 08:06:49 C 23 02 01.57 +57 14 04.4 c H41
2004-08-07 08:08:17 C 23 02 01.42 +57 14 08.1 c H41
2004-08-07 08:09:46 C 23 02 01.26 +57 14 11.5 c H41
2004-08-07 08:11:12 C 23 02 01.08 +57 14 14.6 c H41
2004-08-07 21:35:40 C 23 00 40.96 +57 44 53.1 c J93
2004-08-07 21:38:45 C 23 00 40.71 +57 45 00.3 c J93
2004-08-07 21:41:49 C 23 00 40.25 +57 45 08.4 c J93
2004-08-07 22:43:39 C 23 00 33.60 +57 47 32.0 c 118
2004-08-07 22:48:43 C 23 00 33.06 +57 47 43.4 c 118
2004-08-07 22:53:44 C 23 00 32.53 +57 47 55.0 c 118
2004-08-07 22:56:28 C 23 00 32.37 +57 47 59.0 o A16
2004-08-07 22:56:41 C 23 00 32.50 +57 48 03.1 o A16
2004-08-07 22:57:38 C 23 00 32.44 +57 48 05.0 o A16
2004-08-07 23:00:18 C 23 00 32.20 +57 48 11.1 o A16
2004-08-07 23:18:36 C 23 00 29.97 +57 48 52.6 o 160
2004-08-07 23:19:17 C 23 00 29.93 +57 48 54.2 o 160
2004-08-07 23:20:41 C 23 00 29.74 +57 48 57.3 o 160
2004-08-07 23:21:23 C 23 00 29.68 +57 48 59.3 o 160
2004-08-07 23:22:06 C 23 00 29.60 +57 49 00.6 o 160
2004-08-07 23:22:48 C 23 00 29.53 +57 49 02.2 o 160
2004-08-07 23:24:12 C 23 00 29.38 +57 49 05.4 o 160
2004-08-07 23:24:53 C 23 00 29.27 +57 49 07.1 o 160
2004-08-07 23:25:35 C 23 00 29.21 +57 49 08.5 o 160