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
2004-09-18 22:29:45 C 19 48 32.83 +72 56 31.5 c 215
2004-09-18 22:30:19 C 19 48 32.74 +72 56 31.3 c 215
2004-09-18 22:30:52 C 19 48 32.65 +72 56 31.2 c 215
2004-09-21 06:29:59 C 19 41 05.74 +72 45 33.7 c H41
2004-09-21 06:31:09 C 19 41 05.63 +72 45 34.0 c H41
2004-09-21 06:32:24 C 19 41 05.46 +72 45 33.3 c H41
2004-09-21 06:33:47 C 19 41 05.25 +72 45 32.9 c H41
2004-09-21 06:34:56 C 19 41 05.06 +72 45 32.6 c H41
2004-09-21 18:53:26 C 19 39 37.99 +72 42 52.8 c A30
2004-09-21 18:59:30 C 19 39 37.29 +72 42 51.5 c A30
2004-09-21 19:00:38 C 19 39 37.03 +72 42 51.4 c A30
2004-09-21 19:47:09 C 19 39 31.23 +72 42 39.3 d 557
2004-09-21 20:19:03 C 19 39 27.27 +72 42 31.5 d 557
2004-09-21 20:54:38 C 19 39 22.89 +72 42 23.0 d 557
2004-09-24 21:46:24 C 19 31 45.63 +72 24 03.3 o 084
2004-09-25 19:28:15 C 19 29 51.56 +72 18 06.0 o 084
2004-09-26 05:33:13 C 19 29 00.56 +72 15 15.4 c H41
2004-09-26 05:34:56 C 19 29 00.40 +72 15 14.9 c H41
2004-09-26 05:36:46 C 19 29 00.31 +72 15 14.3 c H41
2004-09-26 05:38:02 C 19 29 00.21 +72 15 13.8 c H41
2004-09-26 05:39:19 C 19 29 00.09 +72 15 13.6 c H41
2004-09-27 03:54:24 C 19 27 17.97 +72 08 51.0 16.1 c 704
2004-09-27 04:12:04 C 19 27 16.54 +72 08 46.0 16.2 c 704
2004-09-27 04:29:36 C 19 27 15.02 +72 08 40.2 16.7 c 704
2004-09-27 04:47:09 C 19 27 13.73 +72 08 34.6 16.5 c 704
2004-09-27 05:04:41 C 19 27 12.27 +72 08 28.9 16.4 c 704
2004-09-27 05:21:01 C 19 27 10.86 +72 08 22.3 c H41
2004-09-27 05:22:35 C 19 27 10.67 +72 08 21.8 c H41
2004-09-27 05:24:02 C 19 27 10.57 +72 08 21.1 c H41
2004-09-27 05:25:21 C 19 27 10.54 +72 08 21.0 c H41
2004-09-27 05:26:34 C 19 27 10.36 +72 08 20.5 c H41
2004-09-28 07:17:45 C 19 25 23.78 +72 00 33.7 c H41
2004-09-28 07:19:01 C 19 25 23.69 +72 00 33.1 c H41
2004-09-28 07:20:47 C 19 25 23.40 +72 00 31.8 c H41
2004-09-28 07:21:53 C 19 25 23.60 +72 00 31.8 c H41
2004-09-28 07:22:54 C 19 25 23.44 +72 00 32.2 c H41
2004-09-28 07:24:02 C 19 25 23.34 +72 00 31.5 c H41
2004-09-28 21:50:30 C 19 24 30.14 +71 56 11.7 o A13
2004-09-28 21:52:03 C 19 24 30.04 +71 56 11.3 o A13
2004-09-28 21:53:34 C 19 24 29.97 +71 56 10.8 o A13
2004-09-28 21:55:04 C 19 24 29.82 +71 56 10.5 o A13
2004-09-28 21:56:36 C 19 24 29.69 +71 56 09.8 o A13
2004-09-28 21:58:07 C 19 24 29.54 +71 56 09.1 o A13
2004-09-28 21:59:38 C 19 24 29.58 +71 56 08.8 o A13
2004-09-28 22:01:10 C 19 24 29.44 +71 56 08.3 o A13
2004-09-28 22:02:41 C 19 24 29.34 +71 56 07.6 o A13
2004-09-30 05:15:33 C 19 22 46.39 +71 46 25.3 c H41
2004-09-30 05:17:00 C 19 22 46.34 +71 46 24.9 c H41
2004-09-30 05:18:10 C 19 22 46.27 +71 46 24.5 c H41
2004-09-30 05:19:15 C 19 22 46.16 +71 46 23.8 c H41