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
1990-01-30 14:31:28 09 29 13.63 -17 53 31.4 260
1990-01-30 15:10:22 09 29 10.51 -17 53 52.6 260
1990-01-30 15:59:14 09 29 06.40 -17 54 19.9 260
1990-01-30 16:11:12 09 29 05.32 -17 54 26.8 260
1992-01-09 12:03:29 08 29 31.82 +20 31 36.9 675
1992-01-09 12:54:44 08 29 27.13 +20 31 08.1 675
1992-01-10 12:10:29 08 27 13.51 +20 17 45.5 675
1992-01-30 04:27:00 07 42 29.08 +15 33 07.2 18.0 809
1992-01-30 04:45:59 07 42 27.34 +15 32 55.9 809
1992-01-30 05:05:00 07 42 25.68 +15 32 45.0 809
1992-02-02 03:08:00 07 36 36.09 +14 51 27.3 809
1992-02-02 03:26:59 07 36 34.44 +14 51 16.7 809
1992-02-02 03:45:59 07 36 32.91 +14 51 05.5 809
1992-02-06 03:08:59 07 29 13.01 +13 56 36.9 809
1992-02-06 03:27:59 07 29 11.61 +13 56 26.6 809
1992-02-06 03:47:00 07 29 10.22 +13 56 16.6 809
1992-02-11 04:43:59 07 21 00.67 +12 50 59.9 809
1992-02-11 05:03:00 07 20 59.38 +12 50 49.6 809
1995-08-05 05:08:00 19 41 30.28 +16 52 20.1 261
1995-08-05 06:08:00 19 41 20.63 +16 55 22.3 261
2000-11-28 10:58:35 C 09 45 13.11 +17 28 46.2 17.9 c 704
2000-11-28 11:20:41 C 09 45 13.09 +17 28 33.8 18.0 c 704
2000-11-28 11:41:47 C 09 45 13.06 +17 28 21.7 18.1 c 704
2000-11-28 12:03:01 C 09 45 12.99 +17 28 09.2 18.2 c 704
2000-11-28 12:24:07 C 09 45 13.03 +17 27 57.1 18.0 c 704
2000-12-21 10:46:16 C 09 34 14.45 +12 00 21.9 17.3 c 704
2000-12-21 11:07:57 C 09 34 13.49 +12 00 09.2 18.2 c 704
2000-12-21 11:29:44 C 09 34 12.56 +11 59 55.6 17.4 c 704
2000-12-21 11:51:24 C 09 34 11.58 +11 59 42.0 18.0 c 704
2000-12-21 12:13:09 C 09 34 10.66 +11 59 28.8 17.5 c 704
2000-12-22 09:38:02 C 09 33 15.47 +11 46 26.6 c 699
2000-12-22 10:12:03 C 09 33 13.92 +11 46 06.1 c 699
2000-12-22 10:45:59 C 09 33 12.33 +11 45 45.6 c 699
2000-12-22 11:23:52 C 09 33 10.63 +11 45 21.8 c 699
2000-12-26 17:29:31 C 09 28 13.25 +10 43 00.1 360
2000-12-26 17:33:39 C 09 28 13.02 +10 42 57.4 360
2000-12-26 17:38:11 C 09 28 12.77 +10 42 54.7 360
2000-12-28 09:12:48 C 09 26 03.21 +10 18 40.7 17.2 c 704
2000-12-28 09:34:35 C 09 26 01.94 +10 18 27.3 17.2 c 704
2000-12-28 09:56:21 C 09 26 00.68 +10 18 14.3 17.0 c 704
2000-12-28 10:18:07 C 09 25 59.40 +10 18 01.3 16.9 c 704
2000-12-28 10:39:52 C 09 25 58.13 +10 17 47.4 16.6 c 704
2000-12-30 08:46:43 C 09 23 17.15 +09 49 32.7 17.0 c 704
2000-12-30 09:09:06 C 09 23 15.79 +09 49 19.2 17.0 c 704
2000-12-30 09:32:36 C 09 23 14.30 +09 49 05.0 17.4 c 704
2000-12-30 09:54:12 C 09 23 12.97 +09 48 51.7 16.8 c 704
2000-12-30 10:15:43 C 09 23 11.64 +09 48 38.2 17.1 c 704
2001-01-02 08:34:15 C 09 18 45.74 +09 05 37.6 16.9 c 704
2001-01-02 08:55:38 C 09 18 44.29 +09 05 24.6 17.6 c 704
2001-01-02 09:17:37 C 09 18 42.83 +09 05 11.2 18.3 c 704