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
2012-01-26 21:57:30 C 07 10 42.69 +25 54 03.6 c A24
2012-01-26 21:58:33 C 07 10 42.61 +25 54 02.9 c A24
2012-01-27 04:59:01 C 07 10 07.21 +25 48 28.5 16.4 c 704
2012-01-27 05:18:01 C 07 10 05.56 +25 48 13.3 16.4 c 704
2012-01-27 05:37:07 C 07 10 03.89 +25 47 58.1 16.4 c 704
2012-01-30 15:30:49 C 07 03 31.08 +24 42 47.8 o C41
2012-01-30 16:06:48 C 07 03 28.35 +24 42 18.5 o C41
2012-01-30 16:10:17 C 07 03 28.08 +24 42 16.8 o C41
2012-01-31 03:44:05 C 07 02 35.89 +24 33 12.7 16.8 c 704
2012-01-31 04:02:34 C 07 02 34.49 +24 32 58.1 16.8 c 704
2012-01-31 04:20:44 C 07 02 33.09 +24 32 43.9 17.1 c 704
2012-01-31 04:38:56 C 07 02 31.69 +24 32 30.1 16.9 c 704
2012-01-31 04:57:44 C 07 02 30.25 +24 32 14.6 16.9 c 704
2012-02-01 20:09:59 C 06 59 40.05 +24 01 28.7 o J94
2012-02-01 20:33:19 C 06 59 38.41 +24 01 10.4 o J94
2012-02-01 21:02:15 C 06 59 36.29 +24 00 47.7 o J94
2012-02-07 01:49:03 C 06 51 39.56 +22 25 43.1 u I17
2012-02-07 21:50:03 C 06 50 32.18 +22 10 53.2 r J97
2012-02-07 21:52:29 C 06 50 31.95 +22 10 51.5 r J97
2012-02-07 21:54:56 C 06 50 31.84 +22 10 49.6 r J97
2012-02-10 00:31:24 C 06 47 53.14 +21 34 04.7 u I17
2012-02-10 01:31:09 C 06 47 50.14 +21 33 21.2 u I17
2012-02-10 06:05:13 C 06 47 36.740 +21 30 07.39 L F51
2012-02-10 06:24:16 C 06 47 35.765 +21 29 53.92 L F51
2012-02-14 00:39:16 C 06 43 34.76 +20 27 03.0 u I17
2012-02-14 01:14:05 C 06 43 33.31 +20 26 39.4 u I17
2012-02-14 01:55:33 C 06 43 31.61 +20 26 11.5 u I17
2012-02-14 21:09:26 C 06 42 46.62 +20 13 15.0 c A24
2012-02-14 21:10:28 C 06 42 46.60 +20 13 14.7 c A24
2012-02-14 22:44:56 C 06 42 42.89 +20 12 11.2 c A24
2012-02-14 22:45:59 C 06 42 42.85 +20 12 10.7 c A24
2012-02-15 05:47:13 C 06 42 27.13 +20 07 30.9 17.3 c 704
2012-02-15 06:04:44 C 06 42 26.46 +20 07 19.1 17.4 c 704
2012-02-15 06:22:14 C 06 42 25.79 +20 07 07.6 17.7 c 704
2012-02-15 06:39:44 C 06 42 25.09 +20 06 56.0 17.7 c 704
2012-02-15 06:57:20 C 06 42 24.43 +20 06 44.0 17.6 c 704
2012-02-16 20:45:37 C 06 41 04.96 +19 41 56.4 c A24
2012-02-16 20:46:39 C 06 41 04.92 +19 41 55.6 c A24
2012-02-16 21:53:40 C 06 41 02.59 +19 41 13.8 c A24
2012-02-17 19:52:39 C 06 40 20.42 +19 27 05.7 w I99
2012-02-17 19:58:31 C 06 40 20.29 +19 27 02.5 w I99
2012-02-17 20:04:25 C 06 40 20.03 +19 26 58.4 w I99
2012-02-17 20:48:47 C 06 40 18.54 +19 26 29.5 c A24
2012-02-17 20:49:50 C 06 40 18.49 +19 26 28.9 c A24
2012-02-17 22:02:28 C 06 40 16.02 +19 25 42.5 c A24
2012-02-17 22:03:31 C 06 40 16.01 +19 25 42.4 c A24
2012-02-20 15:47:19 C 06 38 26.57 +18 44 49.2 r 168
2012-02-20 15:49:10 C 06 38 26.51 +18 44 47.4 r 168
2012-02-21 15:31:00 C 06 37 52.75 +18 30 30.9 r 168
2012-02-21 17:42:20 C 06 37 49.65 +18 29 12.0 r 168