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
2019-02-24 08:14:35 s 1 -177237.69 4 +285361.74 4130.0 C57
2019-02-24 08:44:35 S 08 48 44.498 -23 49 14.77 V C57
2019-02-24 08:44:35 s 1 -177783.39 4 +284089.76 8980.0 C57
2019-02-24 09:14:35 S 08 48 42.062 -23 49 15.02 V C57
2019-02-24 09:14:35 s 1 -178323.24 8 +282808.47 4570.0 C57
2019-02-24 09:44:35 S 08 48 39.610 -23 49 17.18 V C57
2019-02-24 09:44:35 s 1 -178857.20 2 +281517.83 660.0 C57
2019-02-24 10:14:35 S 08 48 37.212 -23 49 19.02 V C57
2019-02-24 10:14:35 s 1 -179385.20 0 +280217.85 7000.0 C57
2019-02-24 10:44:35 S 08 48 34.678 -23 49 19.52 V C57
2019-02-24 10:44:35 s 1 -179907.18 5 +278908.49 3340.0 C57
2019-02-24 11:14:35 S 08 48 32.213 -23 49 21.40 V C57
2019-02-24 11:14:35 s 1 -180423.09 9 +277589.74 9430.0 C57
2019-02-24 11:44:35 S 08 48 29.878 -23 49 23.09 V C57
2019-02-24 11:44:35 s 1 -180932.88 6 +276261.59 5000.0 C57
2019-02-24 12:14:35 S 08 48 27.545 -23 49 24.42 V C57
2019-02-24 12:14:35 s 1 -181436.48 5 +274924.01 9800.0 C57
2019-02-24 12:44:35 S 08 48 24.936 -23 49 25.46 V C57
2019-02-24 12:44:35 s 1 -181933.83 8 +273576.98 3550.0 C57
2019-02-24 13:14:35 S 08 48 22.457 -23 49 27.52 V C57
2019-02-24 13:14:35 s 1 -182424.88 4 +272220.49 5990.0 C57
2019-02-24 13:44:35 S 08 48 20.165 -23 49 28.70 V C57
2019-02-24 13:44:35 s 1 -182909.56 2 +270854.53 6860.0 C57
2019-02-24 14:14:35 S 08 48 17.520 -23 49 32.41 V C57
2019-02-24 14:14:35 s 1 -183387.81 0 +269479.06 5860.0 C57
2019-02-24 14:44:35 S 08 48 15.230 -23 49 31.76 V C57
2019-02-24 14:44:35 s 1 -183859.56 4 +268094.07 2730.0 C57
2019-02-24 15:02:17 C 08 48 10.31 -23 48 09.9 V 323
2019-02-24 15:14:35 S 08 48 12.718 -23 49 33.20 V C57
2019-02-24 15:14:35 s 1 -184324.76 2 +266699.55 7170.0 C57
2019-02-24 15:44:35 S 08 48 10.258 -23 49 35.33 V C57
2019-02-24 15:44:35 s 1 -184783.33 9 +265295.46 8900.0 C57
2019-02-24 16:14:35 S 08 48 07.898 -23 49 35.62 V C57
2019-02-24 16:14:35 s 1 -185235.22 9 +263881.80 7630.0 C57
2019-02-24 16:30:13 C 08 48 03.31 -23 48 15.0 V 323
2019-02-24 16:44:35 S 08 48 05.506 -23 49 35.62 V C57
2019-02-24 16:44:35 s 1 -185680.36 6 +262458.54 3070.0 C57
2019-02-24 17:14:35 S 08 48 02.971 -23 49 37.02 V C57
2019-02-24 17:14:35 s 1 -186118.68 3 +261025.66 4910.0 C57
2019-02-24 17:44:35 S 08 48 00.499 -23 49 39.29 V C57
2019-02-24 17:44:35 s 1 -186550.11 0 +259583.15 2840.0 C57
2019-02-24 18:14:35 S 08 47 58.054 -23 49 40.12 V C57
2019-02-24 18:14:35 s 1 -186974.58 0 +258130.97 6570.0 C57
2019-02-24 18:44:35 S 08 47 55.589 -23 49 40.73 V C57
2019-02-24 18:44:35 s 1 -187392.02 1 +256669.11 5780.0 C57
2019-02-24 19:14:35 S 08 47 53.359 -23 49 42.42 V C57
2019-02-24 19:14:35 s 1 -187802.36 3 +255197.55 140.0 C57
2019-02-24 19:44:35 S 08 47 50.700 -23 49 43.50 V C57
2019-02-24 19:44:35 s 1 -188205.53 2 +253716.27 9350.0 C57
2019-02-24 20:14:35 S 08 47 48.499 -23 49 43.82 V C57