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
2018-12-08 04:22:26 C 10 23 14.18 -02 41 57.9 V C95
2018-12-08 04:27:30 C 10 23 14.17 -02 42 02.6 V C95
2018-12-09 10:25:51 C 10 23 27.43 -03 07 31.6 V 703
2018-12-09 10:33:30 C 10 23 27.44 -03 07 38.1 V 703
2018-12-09 10:41:09 C 10 23 27.51 -03 07 44.7 V 703
2018-12-09 10:48:49 C 10 23 27.56 -03 07 50.9 V 703
2018-12-10 14:50:01 C 10 23 37.11 -03 31 46.6 U T05
2018-12-10 15:02:41 C 10 23 37.10 -03 31 57.6 U T05
2018-12-10 15:14:33 C 10 23 37.14 -03 32 07.8 U T05
2018-12-10 15:27:22 C 10 23 37.21 -03 32 18.7 U T05
2018-12-14 09:31:23 C 10 23 50.23 -04 49 56.5 V 703
2018-12-14 09:44:19 C 10 23 50.26 -04 50 07.2 V 703
2018-12-14 09:50:44 C 10 23 50.23 -04 50 13.0 V 703
2018-12-14 09:57:10 C 10 23 50.25 -04 50 18.2 V 703
2018-12-18 13:21:10 C 10 23 31.25 -06 16 57.2 V T05
2018-12-18 13:32:59 C 10 23 31.18 -06 17 07.6 V T05
2018-12-18 13:45:06 C 10 23 31.05 -06 17 18.3 V T05
2018-12-18 13:57:14 C 10 23 30.95 -06 17 28.9 V T05
2018-12-19 11:05:03 C 10 23 22.17 -06 36 02.5 V G96
2018-12-19 11:12:30 C 10 23 22.11 -06 36 08.9 V G96
2018-12-19 11:19:57 C 10 23 22.05 -06 36 15.7 V G96
2018-12-21 08:08:45 C 10 22 57.96 -07 15 42.0 o 691
2018-12-21 08:32:34 C 10 22 57.72 -07 16 02.9 o 691
2018-12-21 08:56:25 C 10 22 57.51 -07 16 24.5 o 691
2018-12-22 13:42:43 C 10 22 37.54 -07 41 47.3 V T05
2018-12-22 13:56:00 C 10 22 37.35 -07 41 59.7 V T05
2018-12-22 14:08:56 C 10 22 37.16 -07 42 10.7 V T05
2018-12-22 14:22:05 C 10 22 36.97 -07 42 22.2 V T05
2018-12-26 13:23:57 C 10 21 07.67 -09 06 35.6 V T05
2018-12-26 13:35:52 C 10 21 07.40 -09 06 46.4 V T05
2018-12-26 13:47:48 C 10 21 07.18 -09 06 56.7 V T05
2018-12-26 13:59:24 C 10 21 06.94 -09 07 07.2 V T05
2019-01-06 13:43:24 C 10 13 31.649 -13 00 16.89 U F51
2019-01-06 13:44:19 C 10 13 31.610 -13 00 17.67 U F51
2019-01-06 13:59:15 C 10 13 31.004 -13 00 30.70 U F51
2019-01-06 14:00:11 C 10 13 30.962 -13 00 31.54 U F51
2019-01-06 14:15:05 C 10 13 30.361 -13 00 44.50 U F51
2019-01-06 14:16:01 C 10 13 30.323 -13 00 45.31 U F51
2019-01-06 14:30:57 C 10 13 29.715 -13 00 58.33 U F51
2019-01-09 08:43:47 C 10 10 44.82 -13 58 21.2 V 703
2019-01-09 08:49:33 C 10 10 44.54 -13 58 26.3 V 703
2019-01-09 08:55:19 C 10 10 44.25 -13 58 31.1 V 703
2019-01-09 09:01:03 C 10 10 44.03 -13 58 36.3 V 703
2019-01-11 09:41:06 C 10 08 29.23 -14 40 10.5 V G96
2019-01-11 09:48:32 C 10 08 28.89 -14 40 17.1 V G96
2019-01-11 09:55:58 C 10 08 28.52 -14 40 23.0 V G96
2019-01-11 10:03:25 C 10 08 28.16 -14 40 29.5 V G96
2019-01-11 12:19:09 C 10 08 21.71 -14 42 23.5 V T05
2019-01-11 12:30:47 C 10 08 21.11 -14 42 33.2 V T05
2019-01-11 12:42:38 C 10 08 20.52 -14 42 43.5 V T05