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
2017-05-20 07:56:42 S 09 18 52.618 -46 49 42.10 L C51
2017-05-20 11:05:12 S 09 19 03.13 -46 48 16.3 L C51
2017-05-20 12:39:27 S 09 19 08.294 -46 47 34.80 L C51
2017-05-20 12:39:38 S 09 19 08.309 -46 47 34.37 L C51
2017-05-20 14:13:53 S 09 19 13.622 -46 46 50.09 L C51
2017-05-20 15:48:08 S 09 19 18.87 -46 46 09.6 L C51
2017-05-20 17:22:23 S 09 19 24.254 -46 45 26.46 L C51
2017-05-20 18:56:38 S 09 19 29.59 -46 44 43.9 L C51
2017-05-20 20:30:53 S 09 19 34.93 -46 44 02.3 L C51
2017-05-20 22:05:19 S 09 19 40.274 -46 43 19.45 L C51
2017-05-21 07:31:00 S 09 20 12.59 -46 39 06.8 L C51
2017-05-21 10:39:31 S 09 20 23.31 -46 37 42.8 L C51
2017-05-21 13:48:00 S 09 20 34.164 -46 36 18.94 L C51
2017-05-21 13:48:11 S 09 20 34.188 -46 36 18.90 L C51
2017-06-21 23:19:10 C 10 22 38.39 -42 23 57.9 q Y00
2017-06-21 23:24:22 C 10 22 38.95 -42 23 56.5 q Y00
2017-06-21 23:30:51 C 10 22 39.58 -42 23 54.5 q Y00
2017-06-28 23:53:44 C 10 40 51.32 -41 46 53.0 q Y00
2017-06-29 00:14:58 C 10 40 53.73 -41 46 48.7 q Y00
2017-06-29 00:30:59 C 10 40 55.55 -41 46 44.8 q Y00
2017-12-21 17:21:04 C 20 08 18.70 -04 47 15.3 q 160
2017-12-21 17:23:54 C 20 08 19.03 -04 47 12.8 q 160
2017-12-21 17:26:47 C 20 08 19.40 -04 47 06.6 q 160
2017-12-23 17:17:30 C 20 13 51.70 -04 00 06.3 q 160
2017-12-23 17:19:50 C 20 13 51.96 -04 00 03.7 q 160
2017-12-23 17:22:11 C 20 13 52.23 -04 00 01.4 q 160
2018-09-18 11:43:13 C 09 01 56.02 +20 49 48.0 V 703
2018-09-18 11:51:11 C 09 01 56.63 +20 49 43.1 V 703
2018-09-18 11:59:09 C 09 01 57.16 +20 49 37.7 V 703
2018-10-18 12:09:24 C 09 44 09.79 +12 53 35.8 V 703
2018-10-18 12:12:39 C 09 44 09.96 +12 53 33.5 V 703
2018-10-18 12:16:47 C 09 44 10.19 +12 53 30.4 V 703
2018-10-18 12:21:01 C 09 44 10.34 +12 53 27.3 V 703
2018-10-27 10:22:37 C 09 54 25.08 +10 21 52.7 V 703
2018-10-27 10:29:41 C 09 54 25.41 +10 21 47.3 V 703
2018-10-27 10:43:50 C 09 54 26.05 +10 21 37.6 V 703
2018-10-27 20:10:31 C 09 54 51.52 +10 14 50.5 q D29
2018-10-27 20:33:25 C 09 54 52.50 +10 14 34.3 q D29
2018-10-27 20:56:19 C 09 54 53.37 +10 14 18.7 q D29
2018-11-04 11:20:32 C 10 02 37.46 +08 00 51.7 V 703
2018-11-04 11:28:02 C 10 02 37.78 +08 00 46.0 V 703
2018-11-04 11:35:33 C 10 02 38.14 +08 00 40.1 V 703
2018-11-04 11:43:04 C 10 02 38.44 +08 00 35.2 V 703
2018-11-07 11:33:38 C 10 05 25.36 +07 06 56.3 V I41
2018-11-07 11:34:56 C 10 05 25.41 +07 06 55.3 V I41
2018-11-07 12:31:16 C 10 05 27.49 +07 06 13.1 V I41
2018-11-07 12:55:34 C 10 05 28.37 +07 05 54.9 V I41
2018-11-08 11:08:21 C 10 06 18.06 +06 49 12.6 V 703
2018-11-08 11:15:52 C 10 06 18.32 +06 49 06.5 V 703
2018-11-08 11:23:24 C 10 06 18.65 +06 49 00.9 V 703