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
2015-09-05 01:20:01 C 17 35 19.41 +02 16 11.7 u H21
2015-09-06 19:17:49 C 17 37 34.65 +03 13 58.6 q 160
2015-09-06 19:20:39 C 17 37 34.79 +03 14 02.3 q 160
2015-09-06 19:23:28 C 17 37 34.94 +03 14 06.3 q 160
2015-09-07 01:09:02 C 17 37 53.91 +03 21 49.6 u H21
2015-09-07 01:14:53 C 17 37 54.21 +03 21 57.4 u H21
2015-09-07 01:17:52 C 17 37 54.36 +03 22 01.4 u H21
2015-09-07 01:20:44 C 17 37 54.51 +03 22 05.2 u H21
2015-09-07 01:23:43 C 17 37 54.66 +03 22 09.2 u H21
2015-09-07 01:26:35 C 17 37 54.81 +03 22 13.0 u H21
2015-09-07 01:29:36 C 17 37 54.97 +03 22 17.1 u H21
2015-09-07 01:32:35 C 17 37 55.12 +03 22 20.9 u H21
2015-09-07 01:35:27 C 17 37 55.28 +03 22 24.8 u H21
2015-09-07 01:38:27 C 17 37 55.43 +03 22 28.9 u H21
2015-09-07 01:41:01 C 17 37 55.56 +03 22 32.3 u H21
2015-09-07 01:43:28 C 17 37 55.69 +03 22 35.5 u H21
2015-09-07 19:18:10 C 17 38 53.74 +03 45 46.8 q 160
2015-09-07 19:20:59 C 17 38 53.89 +03 45 50.5 q 160
2015-09-07 19:23:47 C 17 38 54.04 +03 45 54.1 q 160
2015-09-08 00:57:08 C 17 39 12.66 +03 53 09.0 u H21
2015-09-08 01:00:19 C 17 39 12.83 +03 53 13.2 u H21
2015-09-08 01:03:11 C 17 39 12.98 +03 53 16.8 u H21
2015-09-08 01:06:12 C 17 39 13.14 +03 53 20.8 u H21
2015-09-08 01:09:02 C 17 39 13.29 +03 53 24.5 u H21
2015-09-08 01:12:01 C 17 39 13.45 +03 53 28.4 u H21
2015-09-08 01:15:36 C 17 39 13.63 +03 53 33.0 u H21
2015-09-08 08:25:12 S 17 39 37.69 +04 02 55.5 L C51
2015-09-08 11:34:04 S 17 39 48.23 +04 06 58.2 L C51
2015-09-08 11:34:16 S 17 39 48.26 +04 06 58.1 L C51
2015-09-08 14:43:08 S 17 39 58.82 +04 11 00.0 L C51
2015-09-08 17:52:00 S 17 40 09.39 +04 15 00.9 L C51
2015-09-08 21:01:03 S 17 40 20.002 +04 19 00.95 L C51
2015-09-09 00:09:55 S 17 40 30.68 +04 23 00.1 L C51
2015-09-09 01:44:21 S 17 40 35.99 +04 24 59.5 L C51
2015-09-09 03:18:00 C 17 40 40.90 +04 26 48.7 t 750
2015-09-09 03:18:47 S 17 40 41.32 +04 26 58.4 L C51
2015-09-09 03:43:43 C 17 40 42.29 +04 27 19.2 t 750
2015-09-09 04:53:13 S 17 40 46.66 +04 28 57.1 L C51
2015-09-09 04:53:23 S 17 40 46.66 +04 28 57.0 L C51
2015-09-09 06:27:50 S 17 40 52.00 +04 30 55.9 L C51
2015-09-09 09:36:42 S 17 41 02.69 +04 34 52.6 L C51
2015-09-09 11:11:08 S 17 41 08.04 +04 36 50.6 L C51
2015-09-09 14:20:00 S 17 41 18.77 +04 40 45.8 L C51
2015-09-09 14:20:11 S 17 41 18.79 +04 40 45.8 L C51
2015-09-09 17:29:04 S 17 41 29.53 +04 44 40.5 L C51
2015-09-09 19:37:47 C 17 41 36.61 +04 47 11.8 q 160
2015-09-09 19:41:11 C 17 41 36.79 +04 47 16.2 q 160
2015-09-09 19:44:33 C 17 41 36.97 +04 47 20.2 q 160
2015-09-09 20:37:55 S 17 41 40.29 +04 48 34.2 L C51
2015-09-09 23:46:58 S 17 41 51.08 +04 52 27.0 L C51