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
2010-01-25 16:34:01 C 09 11 20.06 -08 15 13.8 r E12
2010-01-25 17:06:15 C 09 11 17.35 -08 15 31.5 r E12
2010-01-25 17:24:32 C 09 11 15.81 -08 15 41.4 r E12
2010-01-25 17:42:52 C 09 11 14.25 -08 15 51.5 r E12
2010-02-03 14:53:50 C 08 53 04.92 -09 58 50.1 u 379
2010-02-03 15:15:09 C 08 53 03.06 -09 58 58.8 u 379
2010-02-03 15:20:30 C 08 53 02.60 -09 59 00.8 u 379
2010-03-17 11:16:56 C 07 51 53.48 -11 50 52.7 r E12
2010-03-17 11:43:13 C 07 51 52.83 -11 50 51.0 r E12
2010-03-23 20:06:20 C 07 49 11.78 -11 39 01.9 18.3 u C20
2010-03-23 20:10:33 C 07 49 11.74 -11 39 01.3 18.2 u C20
2010-03-24 20:03:52 C 07 48 55.99 -11 37 03.1 17.9 u C20
2010-03-24 20:08:06 C 07 48 55.94 -11 37 02.7 17.9 u C20
2010-04-16 19:47:30 S 07 53 02.083 -11 00 28.76 L C51
2010-04-16 22:58:02 S 07 53 06.43 -11 00 21.7 L C51
2010-04-17 02:08:33 S 07 53 10.83 -11 00 15.5 L C51
2010-04-17 05:19:04 S 07 53 15.26 -11 00 08.7 L C51
2010-04-17 06:54:25 S 07 53 17.48 -11 00 06.2 L C51
2010-04-17 08:29:35 S 07 53 19.74 -11 00 03.2 L C51
2010-04-17 10:04:56 S 07 53 21.97 -10 59 59.8 L C51
2010-04-17 11:40:06 S 07 53 24.19 -10 59 57.2 L C51
2010-04-17 11:40:17 S 07 53 24.21 -10 59 58.1 L C51
2010-04-17 13:15:27 S 07 53 26.46 -10 59 53.6 L C51
2010-04-17 14:50:48 S 07 53 28.71 -10 59 52.1 L C51
2010-04-18 00:22:21 S 07 53 42.44 -10 59 33.0 L C51
2010-04-18 01:57:31 S 07 53 44.76 -10 59 30.3 L C51
2010-04-18 05:08:02 S 07 53 49.43 -10 59 24.1 L C51
2010-04-18 08:18:34 S 07 53 54.07 -10 59 19.1 L C51
2010-04-18 08:18:44 S 07 53 54.11 -10 59 19.2 L C51
2010-04-22 05:59:18 S 07 56 24.672 -10 57 21.71 L C51
2010-04-29 18:07:27 C 08 02 17.07 -10 58 09.3 18.8 u C20
2010-04-29 18:09:34 C 08 02 17.18 -10 58 08.5 18.7 u C20
2011-10-04 03:21:04 C 08 31 08.05 +44 42 03.1 c A24
2011-10-04 03:22:07 C 08 31 08.07 +44 42 02.5 c A24
2011-10-04 04:15:25 C 08 31 11.91 +44 41 43.2 c A24
2011-10-04 04:16:27 C 08 31 12.10 +44 41 43.1 c A24
2011-10-21 03:48:05 C 08 56 32.49 +42 19 36.0 o C60
2011-10-21 03:49:14 C 08 56 32.53 +42 19 35.3 o C60
2011-10-21 03:50:24 C 08 56 32.60 +42 19 34.8 o C60
2011-10-21 03:51:33 C 08 56 32.65 +42 19 34.4 o C60
2011-10-21 03:52:42 C 08 56 32.71 +42 19 34.2 o C60
2011-10-22 10:06:30 C 08 58 01.45 +42 09 31.0 r 703
2011-10-22 10:18:46 C 08 58 02.02 +42 09 26.9 r 703
2011-10-22 10:30:44 C 08 58 02.56 +42 09 23.0 r 703
2011-10-22 10:42:33 C 08 58 03.14 +42 09 18.8 r 703
2011-11-24 10:40:14 C 09 12 35.24 +38 20 33.5 r 703
2011-11-24 10:51:59 C 09 12 35.06 +38 20 30.8 r 703
2011-11-24 11:03:46 C 09 12 34.84 +38 20 27.8 r 703
2011-11-24 11:15:37 C 09 12 34.63 +38 20 24.8 r 703
2011-11-29 11:08:53 C 09 09 54.35 +37 50 10.6 t H47