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
2004-12-15 09:15:29 C 23 02 55.12 +60 18 47.9 m 379
2004-12-15 09:19:47 C 23 02 55.93 +60 18 45.1 m 379
2004-12-20 03:27:38 C 23 25 07.17 +59 02 00.3 17.1 c 704
2004-12-20 03:47:38 C 23 25 10.95 +59 01 45.8 17.0 c 704
2004-12-20 04:06:07 C 23 25 14.47 +59 01 32.6 17.1 c 704
2004-12-20 04:25:26 C 23 25 18.14 +59 01 19.3 17.1 c 704
2004-12-20 04:44:19 C 23 25 21.74 +59 01 04.9 17.0 c 704
2004-12-21 16:07:54 C 23 32 08.85 +58 36 11.3 o 084
2004-12-25 17:06:38 C 23 50 23.73 +57 25 39.3 o 084
2004-12-31 21:22:53 C 00 17 16.30 +55 32 31.1 o 084
2005-01-03 18:02:56 C 00 29 16.21 +54 38 41.5 o 160
2005-01-03 18:05:25 C 00 29 16.56 +54 38 39.8 o 160
2005-01-03 18:07:19 C 00 29 16.94 +54 38 38.2 o 160
2005-01-03 18:09:10 C 00 29 17.22 +54 38 36.7 o 160
2005-01-03 18:11:14 C 00 29 17.58 +54 38 35.1 o 160
2005-01-08 02:08:13 C 00 46 52.93 +53 15 48.6 o 084
2005-01-11 23:33:25 C 01 02 06.22 +52 01 14.0 o 084
2005-01-12 19:14:45 C 01 05 14.66 +51 45 37.4 r 160
2005-01-12 19:18:33 C 01 05 15.23 +51 45 33.6 r 160
2005-01-29 19:17:12 C 02 05 12.93 +46 31 10.6 c A53
2005-01-29 19:21:57 C 02 05 13.46 +46 31 09.5 c A53
2005-01-29 19:30:23 C 02 05 14.58 +46 31 02.8 c A53
2005-01-29 22:19:18 C 02 05 37.57 +46 28 55.9 o 084
2005-01-29 22:23:59 C 02 05 38.20 +46 28 52.6 o 084
2005-02-01 19:59:04 C 02 14 58.20 +45 38 35.8 r A30
2005-02-01 20:02:53 C 02 14 58.71 +45 38 32.9 r A30
2005-02-01 20:07:34 C 02 14 59.34 +45 38 29.4 r A30
2005-02-01 20:10:07 C 02 14 59.68 +45 38 27.3 r A30
2005-02-02 19:44:53 C 02 18 06.41 +45 21 41.3 o 434
2005-02-02 19:47:13 C 02 18 06.75 +45 21 39.1 o 434
2005-02-02 19:50:07 C 02 18 07.05 +45 21 37.2 o 434
2005-02-02 19:53:01 C 02 18 07.65 +45 21 34.9 o 434
2005-02-03 19:05:04 C 02 21 09.75 +45 05 11.2 o 084
2005-02-03 19:09:42 C 02 21 10.35 +45 05 07.8 o 084
2005-02-07 18:14:02 C 02 33 22.81 +43 59 30.9 c A41
2005-02-07 18:55:42 C 02 33 27.96 +43 59 02.9 c A41
2005-02-07 19:37:31 C 02 33 33.23 +43 58 34.1 c A41
2005-02-09 22:36:17 C 02 39 56.59 +43 24 18.9 o 084
2005-02-09 22:40:56 C 02 39 57.21 +43 24 15.7 o 084
2005-02-12 18:01:57 C 02 48 14.67 +42 40 12.2 o 084
2005-02-12 18:06:37 C 02 48 15.20 +42 40 09.2 o 084
2005-02-14 02:26:51 C 02 52 10.47 +42 19 28.3 17.9 c 704
2005-02-14 02:45:24 C 02 52 12.67 +42 19 16.3 17.9 c 704
2005-02-14 03:02:59 C 02 52 14.76 +42 19 04.5 17.9 c 704
2005-02-14 03:20:34 C 02 52 16.87 +42 18 53.1 18.1 c 704
2005-02-14 03:38:12 C 02 52 18.93 +42 18 42.7 18.3 c 704
2005-02-28 03:51:39 C 03 31 02.18 +38 59 01.9 r 703
2005-02-28 04:04:24 C 03 31 03.41 +38 58 56.9 r 703
2005-02-28 04:17:24 C 03 31 04.85 +38 58 47.2 r 703
2005-02-28 04:30:07 C 03 31 06.32 +38 58 40.7 r 703