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
2004-09-09 19:01:03 C 20 28 13.40 +73 04 06.2 o 240
2004-09-09 19:02:05 C 20 28 13.16 +73 04 06.3 o 240
2004-09-09 19:08:45 C 20 28 11.62 +73 04 07.2 d 557
2004-09-09 19:37:28 C 20 28 05.26 +73 04 11.3 d 557
2004-09-09 20:09:22 C 20 27 58.22 +73 04 15.8 d 557
2004-09-09 20:34:53 C 20 27 52.57 +73 04 19.2 d 557
2004-09-09 21:09:58 C 20 27 44.81 +73 04 23.7 d 557
2004-09-09 21:38:42 C 20 27 38.51 +73 04 27.2 d 557
2004-09-09 22:17:37 C 20 27 29.95 +73 04 31.8 d 557
2004-09-09 22:46:20 C 20 27 23.66 +73 04 35.0 d 557
2004-09-09 23:19:53 C 20 27 16.33 +73 04 38.7 d 557
2004-09-09 23:45:25 C 20 27 10.79 +73 04 41.4 d 557
2004-09-10 00:14:07 C 20 27 04.56 +73 04 44.3 d 557
2004-09-10 00:46:05 C 20 26 57.66 +73 04 47.4 d 557
2004-09-10 01:14:50 C 20 26 51.51 +73 04 50.2 d 557
2004-09-10 01:46:44 C 20 26 44.68 +73 04 53.3 d 557
2004-09-10 02:15:26 C 20 26 38.58 +73 04 55.9 d 557
2004-09-10 05:42:55 C 20 25 55.17 +73 05 28.9 c H41
2004-09-10 05:45:22 C 20 25 54.58 +73 05 29.0 c H41
2004-09-10 05:46:35 C 20 25 54.34 +73 05 29.3 c H41
2004-09-10 05:47:49 C 20 25 54.05 +73 05 29.4 c H41
2004-09-10 05:49:03 C 20 25 53.78 +73 05 29.5 c H41
2004-09-10 19:54:22 C 20 22 58.15 +73 06 56.8 d 557
2004-09-10 20:10:20 C 20 22 54.72 +73 06 58.3 d 557
2004-09-10 20:29:29 C 20 22 50.59 +73 07 00.0 d 557
2004-09-10 20:34:35 C 20 22 49.59 +73 07 01.7 589
2004-09-10 20:41:32 C 20 22 48.09 +73 07 02.2 589
2004-09-10 20:48:21 C 20 22 46.54 +73 07 02.9 589
2004-09-11 05:28:53 C 20 20 58.42 +73 07 45.5 c H41
2004-09-11 05:30:28 C 20 20 58.07 +73 07 45.5 c H41
2004-09-11 05:31:48 C 20 20 57.83 +73 07 45.7 c H41
2004-09-11 05:33:07 C 20 20 57.46 +73 07 45.4 c H41
2004-09-11 05:34:25 C 20 20 57.23 +73 07 45.6 c H41
2004-09-11 10:56:02 C 20 19 53.22 +73 08 09.7 m 379
2004-09-11 11:02:30 C 20 19 51.93 +73 08 10.2 m 379
2004-09-11 11:06:48 C 20 19 50.94 +73 08 10.4 m 379
2004-09-11 11:08:57 C 20 19 50.48 +73 08 10.6 m 379
2004-09-11 11:13:14 C 20 19 49.68 +73 08 11.0 m 379
2004-09-12 06:29:23 C 20 15 55.93 +73 09 03.7 c H41
2004-09-12 06:31:14 C 20 15 55.57 +73 09 03.9 c H41
2004-09-12 06:32:38 C 20 15 55.24 +73 09 03.8 c H41
2004-09-12 06:33:53 C 20 15 54.99 +73 09 03.6 c H41
2004-09-12 06:35:11 C 20 15 54.71 +73 09 03.8 c H41
2004-09-12 18:40:05 C 20 13 35.03 +73 09 21.3 o 240
2004-09-12 18:43:12 C 20 13 34.44 +73 09 21.3 o 240
2004-09-12 18:44:47 C 20 13 34.10 +73 09 21.4 o 240
2004-09-12 18:46:21 C 20 13 33.78 +73 09 21.5 o 240
2004-09-12 18:47:55 C 20 13 33.49 +73 09 21.4 o 240
2004-09-12 18:49:28 C 20 13 33.19 +73 09 21.4 o 240
2004-09-13 04:55:37 C 20 11 35.04 +73 09 26.2 c H41