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
2015-10-22 00:15:15 C 18 54 48.79 +18 28 23.0 u H21
2015-10-22 00:17:37 C 18 54 48.98 +18 28 24.3 u H21
2015-10-22 00:22:05 C 18 54 49.37 +18 28 26.8 u H21
2015-10-22 00:24:09 C 18 54 49.54 +18 28 27.9 u H21
2015-10-22 00:26:13 C 18 54 49.73 +18 28 29.1 u H21
2015-10-22 00:28:17 C 18 54 49.89 +18 28 30.3 u H21
2015-10-22 00:30:20 C 18 54 50.07 +18 28 31.6 u H21
2015-10-22 00:32:25 C 18 54 50.25 +18 28 32.7 u H21
2015-10-22 00:34:29 C 18 54 50.43 +18 28 33.8 u H21
2015-10-23 17:48:27 C 18 58 27.82 +18 52 10.3 q 160
2015-10-23 17:49:35 C 18 58 27.95 +18 52 10.5 q 160
2015-10-23 17:51:50 C 18 58 28.14 +18 52 11.6 q 160
2015-10-29 18:33:31 C 19 11 35.57 +20 12 37.7 q 160
2015-10-29 18:35:47 C 19 11 35.79 +20 12 38.7 q 160
2015-10-29 18:38:03 C 19 11 36.00 +20 12 40.2 q 160
2015-10-30 18:23:45 C 19 13 49.13 +20 25 34.1 q 160
2015-10-30 18:26:02 C 19 13 49.31 +20 25 35.3 q 160
2015-10-30 18:28:19 C 19 13 49.53 +20 25 36.4 q 160
2015-10-31 18:04:39 C 19 16 02.79 +20 38 20.6 q 160
2015-10-31 18:06:53 C 19 16 03.04 +20 38 22.2 q 160
2015-10-31 18:09:07 C 19 16 03.22 +20 38 23.1 q 160
2015-11-01 16:52:20 C 19 18 12.68 +20 50 33.6 q 246
2015-11-01 16:53:00 C 19 18 12.71 +20 50 34.2 q 246
2015-11-01 16:53:35 C 19 18 12.77 +20 50 34.3 q 246
2015-11-01 16:54:51 C 19 18 12.89 +20 50 35.1 q 246
2015-11-01 16:55:21 C 19 18 12.94 +20 50 35.2 q 246
2015-11-01 16:55:36 C 19 18 12.99 +20 50 35.4 q 246
2015-11-01 16:55:50 C 19 18 13.00 +20 50 35.5 q 246
2015-11-01 16:56:07 C 19 18 13.01 +20 50 35.8 q 246
2015-11-01 17:57:24 C 19 18 18.78 +20 51 08.9 q 160
2015-11-01 17:59:40 C 19 18 19.00 +20 51 10.7 q 160
2015-11-02 00:02:08 C 19 18 53.60 +20 54 24.8 u H21
2015-11-02 00:04:11 C 19 18 53.78 +20 54 25.9 u H21
2015-11-02 00:06:15 C 19 18 53.98 +20 54 26.9 u H21
2015-11-02 00:08:19 C 19 18 54.17 +20 54 28.0 u H21
2015-11-02 00:10:24 C 19 18 54.37 +20 54 29.2 u H21
2015-11-02 00:12:27 C 19 18 54.56 +20 54 30.3 u H21
2015-11-02 00:14:31 C 19 18 54.76 +20 54 31.5 u H21
2015-11-02 00:16:36 C 19 18 54.95 +20 54 32.4 u H21
2015-11-02 00:18:39 C 19 18 55.14 +20 54 33.6 u H21
2015-11-02 00:20:44 C 19 18 55.34 +20 54 34.7 u H21
2015-11-02 00:22:47 C 19 18 55.53 +20 54 35.8 u H21
2015-11-02 00:24:51 C 19 18 55.71 +20 54 36.7 u H21
2015-11-02 00:26:56 C 19 18 55.91 +20 54 38.0 u H21
2015-11-02 00:29:00 C 19 18 56.11 +20 54 39.1 u H21
2015-11-02 00:30:51 C 19 18 56.29 +20 54 40.1 u H21
2015-11-02 00:32:55 C 19 18 56.46 +20 54 41.0 u H21
2015-11-02 18:33:52 C 19 20 39.99 +21 04 16.5 q 160
2015-11-02 18:36:06 C 19 20 40.19 +21 04 17.7 q 160
2015-11-02 18:38:20 C 19 20 40.40 +21 04 18.8 q 160