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
2004-07-29 23:45:47 C 23 17 26.13 +48 42 37.0 o 160
2004-07-29 23:46:44 C 23 17 26.09 +48 42 39.5 o 160
2004-07-29 23:47:41 C 23 17 25.92 +48 42 42.0 o 160
2004-07-29 23:48:38 C 23 17 25.92 +48 42 45.3 o 160
2004-07-29 23:49:48 C 23 17 25.72 +48 42 48.5 o 160
2004-07-30 21:48:49 C 23 16 08.52 +49 43 13.9 r A16
2004-07-30 21:50:54 C 23 16 08.46 +49 43 17.8 r A16
2004-07-30 21:55:02 C 23 16 08.16 +49 43 27.3 r A16
2004-07-30 21:55:24 C 23 16 08.21 +49 43 29.1 r A16
2004-07-30 21:59:30 C 23 16 08.01 +49 43 39.9 r A16
2004-07-30 22:33:21 C 23 16 05.80 +49 45 14.5 o 198
2004-07-30 22:34:26 C 23 16 05.72 +49 45 17.5 o 198
2004-07-30 22:38:49 C 23 16 05.44 +49 45 29.5 o 198
2004-07-30 22:45:23 C 23 16 05.03 +49 45 47.6 o 198
2004-07-30 22:46:29 C 23 16 04.95 +49 45 50.6 o 198
2004-07-30 23:21:27 C 23 16 02.63 +49 47 26.9 d 048
2004-07-30 23:22:00 C 23 16 02.59 +49 47 28.6 d 048
2004-07-30 23:23:10 C 23 16 02.51 +49 47 31.9 d 048
2004-07-30 23:23:47 C 23 16 02.47 +49 47 33.6 d 048
2004-07-30 23:24:21 C 23 16 02.43 +49 47 35.2 d 048
2004-07-31 21:19:55 C 23 14 39.73 +50 46 45.1 r A16
2004-07-31 21:23:19 C 23 14 39.50 +50 46 56.4 r A16
2004-07-31 21:24:33 C 23 14 39.44 +50 46 58.7 r A16
2004-07-31 21:26:39 C 23 14 39.48 +50 47 02.5 r A16
2004-07-31 21:29:08 C 23 14 39.12 +50 47 10.6 r A16
2004-07-31 22:09:32 C 23 14 36.61 +50 49 00.8 r 941
2004-07-31 22:10:10 C 23 14 36.57 +50 49 02.5 r 941
2004-07-31 22:10:49 C 23 14 36.52 +50 49 04.2 r 941
2004-07-31 22:11:27 C 23 14 36.48 +50 49 05.9 r 941
2004-07-31 22:12:05 C 23 14 36.45 +50 49 07.6 r 941
2004-08-01 07:51:12 C 23 13 57.20 +51 14 57.7 c H41
2004-08-01 07:52:44 C 23 13 57.11 +51 15 02.1 c H41
2004-08-01 07:55:50 C 23 13 56.86 +51 15 09.9 c H41
2004-08-01 08:00:48 C 23 13 56.48 +51 15 24.4 c H41
2004-08-01 08:04:11 C 23 13 56.29 +51 15 32.6 c H41
2004-08-01 23:05:21 C 23 12 54.54 +51 55 06.7 d 048
2004-08-01 23:05:47 C 23 12 54.50 +51 55 07.9 d 048
2004-08-01 23:07:28 C 23 12 54.45 +51 55 12.2 d 048
2004-08-01 23:07:53 C 23 12 54.40 +51 55 13.1 d 048
2004-08-01 23:09:33 C 23 12 54.27 +51 55 17.5 d 048
2004-08-02 01:50:26 C 23 12 42.36 +52 02 19.0 c A32
2004-08-02 01:52:03 C 23 12 42.26 +52 02 23.3 c A32
2004-08-02 01:53:42 C 23 12 42.11 +52 02 27.1 c A32
2004-08-02 08:22:56 C 23 12 14.40 +52 19 27.6 c H41
2004-08-02 08:24:42 C 23 12 14.21 +52 19 32.4 c H41
2004-08-02 08:26:45 C 23 12 14.12 +52 19 37.9 c H41
2004-08-02 08:28:45 C 23 12 13.95 +52 19 43.1 c H41
2004-08-02 08:30:14 C 23 12 13.82 +52 19 46.7 c H41
2004-08-03 07:37:37 C 23 10 30.56 +53 19 20.2 c H41
2004-08-03 07:39:08 C 23 10 30.39 +53 19 23.9 c H41