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
2016-01-23 17:33:36 C 23 33 17.19 +35 55 15.6 t 160
2016-01-23 17:35:51 C 23 33 17.56 +35 55 16.4 t 160
2016-01-30 20:10:47 C 23 59 27.26 +36 41 08.1 o Z22
2016-01-30 20:31:04 C 23 59 30.35 +36 41 13.2 o Z22
2016-01-30 20:42:00 C 23 59 32.11 +36 41 15.8 o Z22
2016-02-07 01:15:47 C 00 26 03.34 +37 18 34.6 q H45
2016-02-07 01:18:11 C 00 26 03.69 +37 18 35.3 q H45
2016-02-07 01:19:28 C 00 26 03.91 +37 18 35.3 q H45
2016-02-07 01:20:44 C 00 26 04.10 +37 18 35.5 q H45
2016-02-07 01:22:29 C 00 26 04.38 +37 18 35.9 q H45
2016-02-07 01:24:17 C 00 26 04.63 +37 18 36.2 q H45
2016-02-11 01:16:58 C 00 40 46.26 +37 35 19.5 q H45
2016-02-11 01:18:41 C 00 40 46.53 +37 35 19.6 q H45
2016-02-11 01:19:40 C 00 40 46.66 +37 35 19.7 q H45
2016-02-11 01:20:44 C 00 40 46.81 +37 35 19.9 q H45
2016-02-11 01:22:27 C 00 40 47.09 +37 35 20.1 q H45
2016-02-11 01:24:35 C 00 40 47.43 +37 35 20.4 q H45
2016-02-18 23:53:12 C 01 09 44.79 +38 00 03.3 q I15
2016-02-18 23:58:25 C 01 09 45.51 +38 00 03.3 q I15
2016-02-19 00:03:38 C 01 09 46.32 +38 00 03.5 q I15
2016-02-19 15:02:21 C 01 12 01.85 +38 01 30.8 q 168
2016-02-19 15:07:26 C 01 12 02.66 +38 01 31.3 q 168
2016-02-19 16:11:11 C 01 12 12.24 +38 01 36.3 q 168
2016-02-19 16:14:57 C 01 12 12.83 +38 01 36.8 q 168
2016-02-19 18:24:31 C 01 12 32.30 +38 01 48.2 q 168
2016-12-05 12:02:32 C 11 20 12.88 -20 33 10.5 R G45
2016-12-05 12:15:37 C 11 20 13.37 -20 33 23.9 R G45
2016-12-05 12:22:45 C 11 20 13.63 -20 33 31.1 R G45
2016-12-05 12:22:52 C 11 20 13.66 -20 33 31.0 R G45
2016-12-05 12:29:48 C 11 20 13.90 -20 33 38.3 R G45
2016-12-05 12:35:38 C 11 20 14.13 -20 33 44.1 R G45
2016-12-05 12:36:43 C 11 20 14.14 -20 33 45.0 R G45
2017-01-10 14:35:19 C 11 41 44.71 -36 21 16.8 L T05
2017-01-10 14:55:58 C 11 41 44.76 -36 21 40.7 L T05
2017-01-10 15:15:52 C 11 41 44.86 -36 22 03.5 L T05
2017-01-10 15:35:34 C 11 41 44.89 -36 22 26.2 L T05
2017-02-15 02:52:44 C 11 16 49.26 -51 53 31.8 q Y00
2017-02-15 03:07:09 C 11 16 48.04 -51 53 45.4 q Y00
2017-02-15 03:21:21 C 11 16 47.05 -51 53 58.3 q Y00
2017-02-23 11:08:57 C 10 59 49.88 -54 37 14.4 q Q60
2017-02-23 11:18:02 C 10 59 48.94 -54 37 22.7 q Q60
2017-02-23 11:27:07 C 10 59 48.02 -54 37 29.4 q Q60
2017-03-17 09:40:39 C 10 00 26.39 -57 57 32.9 q Q60
2017-03-17 09:49:42 C 10 00 25.29 -57 57 33.3 q Q60
2017-03-17 09:58:46 C 10 00 24.20 -57 57 33.9 q Q60
2017-03-25 11:26:39 C 09 39 22.72 -57 39 15.6 u Q62
2017-03-25 11:56:21 C 09 39 19.60 -57 39 09.8 u Q62
2017-03-25 13:04:39 C 09 39 12.57 -57 38 56.2 u Q62
2017-05-19 19:22:20 S 09 18 11.15 -46 55 24.3 L C51
2017-05-20 06:22:26 S 09 18 47.43 -46 50 24.8 L C51