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
2005-03-01 02:40:36 C 03 33 32.70 +38 46 27.7 18.6 c 704
2005-03-01 03:03:14 C 03 33 35.27 +38 46 15.5 18.0 c 704
2005-03-01 03:20:45 C 03 33 37.18 +38 46 05.7 18.3 c 704
2005-03-01 03:37:35 C 03 33 39.01 +38 45 56.2 18.5 c 704
2005-03-01 03:54:25 C 03 33 40.70 +38 45 45.9 19.2 c 704
2005-03-04 20:54:41 C 03 43 20.14 +37 57 47.5 o 084
2005-03-04 21:00:22 C 03 43 20.75 +37 57 44.5 o 084
2005-03-09 19:16:21 C 03 55 53.11 +36 56 33.7 o 084
2005-03-09 19:22:00 C 03 55 53.74 +36 56 30.5 o 084
2005-12-25 16:28:07 C 12 35 39.08 -38 30 49.9 r E12
2005-12-25 16:28:43 C 12 35 38.97 -38 30 52.0 r E12
2005-12-25 16:39:19 C 12 35 39.69 -38 31 04.8 r E12
2005-12-25 16:39:56 C 12 35 39.62 -38 31 05.1 r E12
2005-12-25 16:50:32 C 12 35 40.38 -38 31 16.7 r E12
2005-12-25 16:51:10 C 12 35 40.30 -38 31 18.0 r E12
2005-12-25 17:01:46 C 12 35 41.06 -38 31 30.0 r E12
2005-12-25 17:02:24 C 12 35 40.99 -38 31 30.2 r E12
2006-04-09 03:56:30 C 12 44 21.59 -82 28 14.4 o 808
2006-04-09 04:08:30 C 12 44 17.87 -82 28 19.7 o 808
2006-04-09 04:21:59 C 12 44 13.63 -82 28 25.7 o 808
2006-04-09 04:31:40 C 12 44 10.62 -82 28 30.0 o 808
2006-05-19 22:43:59 C 09 52 58.27 -78 06 12.6 o 808
2006-05-19 22:49:29 C 09 52 58.58 -78 06 09.3 o 808
2006-05-19 22:59:00 C 09 52 59.22 -78 06 03.2 o 808
2006-05-19 23:08:30 C 09 52 59.83 -78 05 57.4 o 808
2006-05-21 22:43:29 C 09 56 54.56 -77 36 15.6 o 808
2006-05-21 22:59:00 C 09 56 55.95 -77 36 05.9 o 808
2006-05-21 23:03:50 C 09 56 56.21 -77 36 02.8 o 808
2006-07-07 09:23:51 C 12 59 59.07 -59 50 36.1 r 423
2006-07-07 09:41:22 C 13 00 02.07 -59 50 10.8 r 423
2006-07-07 09:58:52 C 13 00 05.11 -59 49 45.8 r 423
2006-07-07 10:33:52 C 13 00 11.26 -59 48 55.7 r 423
2006-07-07 10:51:22 C 13 00 14.25 -59 48 30.9 r 423
2006-08-05 10:21:19 C 14 51 52.74 -41 11 11.6 r E12
2006-08-05 10:32:05 C 14 51 54.21 -41 10 54.1 r E12
2006-08-05 10:42:50 C 14 51 55.72 -41 10 35.9 r E12
2006-08-05 10:53:38 C 14 51 57.24 -41 10 17.0 r E12
2006-08-21 10:34:58 C 15 42 46.65 -30 49 53.1 r E12
2006-08-21 10:46:00 C 15 42 48.06 -30 49 36.0 r E12
2006-08-21 10:57:04 C 15 42 49.42 -30 49 19.3 r E12
2006-09-04 00:20:59 C 16 21 35.99 -23 01 26.8 r 808
2006-09-04 00:31:59 C 16 21 37.20 -23 01 09.6 r 808
2006-09-04 00:41:30 C 16 21 38.31 -23 00 57.3 r 808
2006-09-04 00:53:49 C 16 21 39.55 -23 00 42.0 r 808
2006-09-04 10:13:34 C 16 22 43.64 -22 48 12.0 r E12
2006-09-04 10:25:45 C 16 22 45.01 -22 47 55.5 r E12
2006-09-04 10:38:01 C 16 22 46.38 -22 47 39.1 r E12
2006-09-04 10:50:19 C 16 22 47.74 -22 47 22.5 r E12
2006-09-25 10:58:49 C 17 17 42.93 -12 45 06.7 r E12
2006-09-25 11:04:31 C 17 17 43.54 -12 45 00.9 r E12