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
2004-07-27 07:30:07 C 23 20 43.63 +45 40 35.4 r H41
2004-07-27 07:32:46 C 23 20 43.49 +45 40 42.9 r H41
2004-07-27 07:34:06 C 23 20 43.46 +45 40 46.8 r H41
2004-07-27 07:35:25 C 23 20 43.38 +45 40 50.6 r H41
2004-07-27 07:36:44 C 23 20 43.31 +45 40 54.2 r H41
2004-07-27 16:50:00 C 23 20 17.34 +46 07 30.4 o 379
2004-07-27 16:52:08 C 23 20 17.14 +46 07 36.7 o 379
2004-07-27 17:05:02 C 23 20 16.53 +46 08 13.5 o 379
2004-07-27 22:29:53 C 23 20 01.54 +46 23 38.6 c 127
2004-07-27 22:35:21 C 23 20 01.25 +46 23 54.6 c 127
2004-07-27 22:41:44 C 23 20 00.95 +46 24 13.1 c 127
2004-07-27 22:47:05 C 23 20 00.67 +46 24 28.5 c 127
2004-07-27 22:52:30 C 23 20 00.40 +46 24 44.4 c 127
2004-07-28 07:58:47 C 23 19 33.13 +46 50 50.6 r H41
2004-07-28 08:00:34 C 23 19 33.05 +46 50 55.6 r H41
2004-07-28 08:02:11 C 23 19 32.95 +46 51 00.6 r H41
2004-07-28 08:03:46 C 23 19 32.89 +46 51 05.1 r H41
2004-07-28 08:06:31 C 23 19 32.72 +46 51 12.8 r H41
2004-07-28 08:13:55 C 23 19 32.60 +46 51 33.7 16.2 c 704
2004-07-28 08:29:29 C 23 19 31.90 +46 52 16.6 17.9 c 704
2004-07-28 08:44:59 C 23 19 30.87 +46 53 02.6 15.7 c 704
2004-07-28 17:24:36 C 23 19 04.24 +47 17 37.6 m 379
2004-07-28 17:26:45 C 23 19 04.07 +47 17 43.6 m 379
2004-07-28 17:28:53 C 23 19 03.98 +47 17 50.0 m 379
2004-07-28 17:33:12 C 23 19 03.72 +47 18 02.2 m 379
2004-07-28 17:39:39 C 23 19 03.33 +47 18 20.6 m 379
2004-07-28 17:41:47 C 23 19 03.25 +47 18 26.4 m 379
2004-07-28 21:20:50 C 23 18 52.76 +47 28 36.7 c 127
2004-07-28 21:25:47 C 23 18 52.52 +47 28 50.8 c 127
2004-07-28 21:30:48 C 23 18 52.22 +47 29 05.2 c 127
2004-07-28 21:36:00 C 23 18 51.97 +47 29 20.2 c 127
2004-07-28 22:22:38 C 23 18 49.41 +47 31 33.4 r 240
2004-07-28 22:25:18 C 23 18 49.25 +47 31 40.8 r 240
2004-07-28 22:29:17 C 23 18 49.04 +47 31 52.1 r 240
2004-07-28 22:30:37 C 23 18 48.98 +47 31 55.8 r 240
2004-07-28 22:33:16 C 23 18 48.84 +47 32 03.5 r 240
2004-07-28 22:34:36 C 23 18 48.77 +47 32 07.2 r 240
2004-07-28 22:35:56 C 23 18 48.69 +47 32 11.0 r 240
2004-07-28 22:37:17 C 23 18 48.62 +47 32 14.9 r 240
2004-07-28 22:38:37 C 23 18 48.54 +47 32 18.7 r 240
2004-07-28 23:25:48 C 23 18 46.00 +47 34 33.2 r A13
2004-07-28 23:27:53 C 23 18 45.88 +47 34 39.0 r A13
2004-07-28 23:30:57 C 23 18 45.69 +47 34 48.0 r A13
2004-07-28 23:33:38 C 23 18 45.57 +47 34 55.3 r A13
2004-07-28 23:37:05 C 23 18 45.35 +47 35 05.5 r A13
2004-07-29 23:33:25 C 23 17 26.84 +48 42 02.7 o 160
2004-07-29 23:35:53 C 23 17 26.70 +48 42 09.3 o 160
2004-07-29 23:39:41 C 23 17 26.47 +48 42 20.0 o 160
2004-07-29 23:40:38 C 23 17 26.38 +48 42 22.8 o 160
2004-07-29 23:41:34 C 23 17 26.33 +48 42 25.1 o 160