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
2004-07-17 23:42:32 C 23 27 24.68 +34 18 54.8 r A16
2004-07-17 23:44:00 C 23 27 24.62 +34 18 59.6 r A16
2004-07-17 23:45:29 C 23 27 24.62 +34 19 03.8 r A16
2004-07-17 23:46:58 C 23 27 24.53 +34 19 08.4 r A16
2004-07-17 23:49:25 C 23 27 24.52 +34 19 16.2 r A16
2004-07-17 23:50:53 C 23 27 24.51 +34 19 21.1 r A16
2004-07-17 23:52:22 C 23 27 24.48 +34 19 25.9 r A16
2004-07-17 23:53:20 C 23 27 24.49 +34 19 29.0 r A16
2004-07-18 16:55:31 C 23 27 07.35 +35 13 15.1 r 379
2004-07-18 16:57:39 C 23 27 07.32 +35 13 22.4 r 379
2004-07-18 17:01:58 C 23 27 07.19 +35 13 35.8 r 379
2004-07-18 17:06:16 C 23 27 07.11 +35 13 49.3 r 379
2004-07-19 17:09:41 C 23 26 39.70 +36 29 18.7 r 379
2004-07-19 17:13:58 C 23 26 39.53 +36 29 32.2 r 379
2004-07-20 16:40:46 C 23 26 08.90 +37 42 37.7 r 379
2004-07-20 16:42:55 C 23 26 08.86 +37 42 44.7 r 379
2004-07-20 16:45:03 C 23 26 08.81 +37 42 51.1 r 379
2004-07-20 16:47:13 C 23 26 08.76 +37 42 57.7 r 379
2004-07-20 16:51:30 C 23 26 08.63 +37 43 11.4 r 379
2004-07-20 16:53:40 C 23 26 08.57 +37 43 18.3 r 379
2004-07-20 16:57:57 C 23 26 08.49 +37 43 31.3 r 379
2004-07-20 23:42:46 C 23 25 59.27 +38 04 23.5 r J87
2004-07-20 23:44:56 C 23 25 59.26 +38 04 29.9 r J87
2004-07-20 23:47:04 C 23 25 59.20 +38 04 36.7 r J87
2004-07-21 16:39:40 C 23 25 33.15 +38 56 51.3 r 379
2004-07-21 16:41:50 C 23 25 33.14 +38 56 58.2 r 379
2004-07-21 16:46:07 C 23 25 32.96 +38 57 11.3 r 379
2004-07-21 16:48:17 C 23 25 32.93 +38 57 17.9 r 379
2004-07-21 16:54:44 C 23 25 32.71 +38 57 38.2 r 379
2004-07-23 16:58:37 C 23 24 07.26 +41 24 25.9 o 379
2004-07-23 17:00:47 C 23 24 07.17 +41 24 32.7 o 379
2004-07-23 17:02:55 C 23 24 07.11 +41 24 39.0 o 379
2004-07-23 17:05:04 C 23 24 07.02 +41 24 45.7 o 379
2004-07-23 17:07:14 C 23 24 06.94 +41 24 52.6 o 379
2004-07-23 17:09:23 C 23 24 06.87 +41 24 58.6 o 379
2004-07-23 17:13:41 C 23 24 06.69 +41 25 11.8 o 379
2004-07-23 17:15:50 C 23 24 06.62 +41 25 18.2 o 379
2004-07-23 23:24:14 C 23 23 54.80 +41 43 43.3 r J94
2004-07-23 23:26:21 C 23 23 54.63 +41 43 49.9 r J94
2004-07-23 23:28:47 C 23 23 54.60 +41 43 57.4 r J94
2004-07-26 00:12:48 C 23 22 05.22 +44 09 14.5 r A16
2004-07-26 00:13:20 C 23 22 05.20 +44 09 15.5 r A16
2004-07-26 00:13:43 C 23 22 05.22 +44 09 17.9 r A16
2004-07-26 00:15:08 C 23 22 05.11 +44 09 21.6 r A16
2004-07-26 16:59:13 C 23 21 22.39 +44 58 27.2 o 379
2004-07-26 17:01:22 C 23 21 22.26 +44 58 33.5 o 379
2004-07-26 17:03:32 C 23 21 22.19 +44 58 40.1 o 379
2004-07-26 17:05:40 C 23 21 22.08 +44 58 45.8 o 379
2004-07-26 17:12:08 C 23 21 21.76 +44 59 04.8 o 379
2004-07-26 17:14:16 C 23 21 21.64 +44 59 11.4 o 379