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
2013-12-16 04:55:18 C 02 28 52.61 +73 18 38.0 q H45
2013-12-16 04:56:44 C 02 28 52.66 +73 18 36.0 q H45
2013-12-16 04:58:26 C 02 28 52.71 +73 18 33.4 q H45
2013-12-16 04:59:44 C 02 28 52.73 +73 18 31.5 q H45
2013-12-16 17:26:19 C 02 29 21.84 +72 59 25.0 q B88
2013-12-16 17:37:23 C 02 29 22.19 +72 59 08.1 q B88
2013-12-16 17:48:26 C 02 29 22.55 +72 58 51.4 q B88
2013-12-16 20:20:11 C 02 29 27.38 +72 54 58.8 c A24
2013-12-16 20:21:13 C 02 29 27.37 +72 54 57.7 c A24
2013-12-16 21:19:21 C 02 29 29.22 +72 53 27.5 c A24
2013-12-16 21:20:23 C 02 29 29.25 +72 53 26.3 c A24
2013-12-16 21:29:46 C 02 29 29.54 +72 53 11.8 a 233
2013-12-16 21:36:05 C 02 29 29.73 +72 53 02.4 a 233
2013-12-16 21:40:58 C 02 29 29.92 +72 52 55.0 a 233
2013-12-16 21:46:22 C 02 29 30.03 +72 52 46.3 a 233
2013-12-17 21:29:26 C 02 30 25.93 +72 16 08.9 q C77
2013-12-17 21:33:15 C 02 30 26.08 +72 16 03.0 q C77
2013-12-17 21:36:50 C 02 30 26.21 +72 15 57.1 q C77
2013-12-17 21:40:56 C 02 30 26.35 +72 15 51.0 q C77
2013-12-28 02:53:53 C 02 42 46.97 +65 46 56.0 q H45
2013-12-28 02:55:18 C 02 42 47.04 +65 46 53.8 q H45
2013-12-28 02:56:33 C 02 42 47.11 +65 46 51.7 q H45
2013-12-28 02:57:40 C 02 42 47.16 +65 46 49.8 q H45
2013-12-28 02:59:10 C 02 42 47.23 +65 46 47.4 q H45
2013-12-28 03:00:25 C 02 42 47.32 +65 46 45.4 q H45
2013-12-28 23:19:43 C 02 43 57.52 +65 14 07.0 q L04
2013-12-28 23:29:00 C 02 43 58.04 +65 13 52.0 q L04
2013-12-28 23:38:50 C 02 43 58.60 +65 13 36.0 q L04
2013-12-29 18:13:54 C 02 45 05.72 +64 43 55.3 c A24
2013-12-29 18:14:56 C 02 45 05.77 +64 43 53.2 c A24
2013-12-29 19:17:06 C 02 45 09.22 +64 42 14.1 c A24
2013-12-29 19:18:08 C 02 45 09.27 +64 42 12.4 c A24
2013-12-31 18:29:57 C 02 48 00.60 +63 26 50.7 c A24
2013-12-31 18:31:00 C 02 48 00.62 +63 26 49.3 c A24
2014-01-04 19:11:16 C 02 54 04.84 +60 53 58.5 r 168
2014-01-04 19:14:56 C 02 54 05.07 +60 53 52.8 r 168
2014-01-04 19:18:06 C 02 54 05.29 +60 53 47.6 r 168
2014-01-14 04:10:46 C 03 09 07.94 +55 13 28.9 u H21
2014-01-14 04:13:21 C 03 09 08.09 +55 13 25.0 u H21
2014-01-14 04:15:55 C 03 09 08.27 +55 13 21.4 u H21
2014-01-14 04:18:29 C 03 09 08.46 +55 13 17.5 u H21
2014-01-14 04:21:03 C 03 09 08.62 +55 13 13.7 u H21
2014-01-14 04:28:46 C 03 09 09.13 +55 13 02.4 u H21
2014-01-14 04:31:05 C 03 09 09.29 +55 12 59.1 u H21
2014-01-14 04:33:39 C 03 09 09.45 +55 12 55.3 u H21
2014-01-16 03:18:12 C 03 12 23.72 +54 05 49.0 u H21
2014-01-16 03:20:15 C 03 12 23.85 +54 05 45.8 u H21
2014-01-16 03:27:59 C 03 12 24.40 +54 05 34.7 u H21
2014-01-16 03:29:46 C 03 12 24.51 +54 05 32.2 u H21
2014-01-16 03:31:49 C 03 12 24.64 +54 05 29.4 u H21