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
2021-01-23 14:14:06 S 08 05 54.358 +13 51 31.54 V C57
2021-01-23 14:14:06 s 1 -180913.00 2 +278457.15 630.0 C57
2021-01-23 14:24:06 S 08 05 53.280 +13 51 24.59 V C57
2021-01-23 14:24:06 s 1 -181095.02 7 +277983.64 9180.0 C57
2021-01-23 14:34:06 S 08 05 52.399 +13 51 18.50 V C57
2021-01-23 14:34:06 s 1 -181276.34 9 +277509.06 6510.0 C57
2021-01-23 14:44:07 S 08 05 51.247 +13 51 12.49 V C57
2021-01-23 14:44:07 s 1 -181456.96 6 +277033.40 2620.0 C57
2021-01-23 14:54:06 S 08 05 50.501 +13 51 08.32 V C57
2021-01-23 14:54:06 s 1 -181636.87 4 +276556.65 7500.0 C57
2021-01-23 15:04:06 S 08 05 49.445 +13 51 03.49 V C57
2021-01-23 15:04:06 s 1 -181816.07 1 +276078.83 1160.0 C57
2021-01-23 15:14:06 S 08 05 48.396 +13 50 55.97 V C57
2021-01-23 15:14:06 s 1 -181994.55 6 +275599.93 3590.0 C57
2021-01-23 15:24:06 S 08 05 47.539 +13 50 49.42 V C57
2021-01-23 15:24:06 s 1 -182172.32 4 +275119.94 4780.0 C57
2021-01-23 15:34:06 S 08 05 46.366 +13 50 42.61 V C57
2021-01-23 15:34:06 s 1 -182349.37 3 +274638.87 4730.0 C57
2021-01-23 15:44:06 S 08 05 45.566 +13 50 37.86 V C57
2021-01-23 15:44:06 s 1 -182525.70 2 +274156.72 3430.0 C57
2021-01-23 15:54:06 S 08 05 44.633 +13 50 32.21 V C57
2021-01-23 15:54:06 s 1 -182701.30 6 +273673.48 870.0 C57
2021-01-23 16:04:06 S 08 05 43.639 +13 50 27.60 V C57
2021-01-23 16:04:06 s 1 -182876.18 3 +273189.15 7070.0 C57
2021-01-23 16:14:07 S 08 05 42.766 +13 50 21.34 V C57
2021-01-23 16:14:07 s 1 -183050.33 1 +272703.74 2000.0 C57
2021-01-23 16:24:06 S 08 05 41.678 +13 50 13.88 V C57
2021-01-23 16:24:06 s 1 -183223.74 7 +272217.24 5660.0 C57
2021-01-23 16:34:06 S 08 05 40.685 +13 50 08.02 V C57
2021-01-23 16:34:06 s 1 -183396.42 8 +271729.65 8060.0 C57
2021-01-23 16:44:06 S 08 05 39.725 +13 50 02.29 V C57
2021-01-23 16:44:06 s 1 -183568.37 2 +271240.97 9180.0 C57
2021-01-23 16:54:06 S 08 05 38.729 +13 49 58.15 V C57
2021-01-23 16:54:06 s 1 -183739.57 5 +270751.20 9010.0 C57
2021-01-23 17:04:06 S 08 05 37.877 +13 49 50.30 V C57
2021-01-23 17:04:06 s 1 -183910.03 5 +270260.33 7570.0 C57
2021-01-23 17:14:06 S 08 05 36.888 +13 49 46.02 V C57
2021-01-23 17:14:06 s 1 -184079.74 9 +269768.37 4830.0 C57
2021-01-23 17:24:06 S 08 05 36.014 +13 49 39.94 V C57
2021-01-23 17:24:06 s 1 -184248.71 4 +269275.32 800.0 C57
2021-01-23 17:34:06 S 08 05 35.057 +13 49 36.37 V C57
2021-01-23 17:34:06 s 1 -184416.92 8 +268781.17 5460.0 C57
2021-01-23 17:44:07 S 08 05 33.996 +13 49 30.58 V C57
2021-01-23 17:44:07 s 1 -184584.38 8 +268285.92 8820.0 C57
2021-01-23 17:54:06 S 08 05 32.959 +13 49 23.09 V C57
2021-01-23 17:54:06 s 1 -184751.09 0 +267789.58 870.0 C57
2021-01-23 18:14:06 S 08 05 31.128 +13 49 08.29 V C57
2021-01-23 18:14:06 s 1 -185082.21 1 +266793.59 1020.0 C57
2021-01-23 18:24:06 S 08 05 29.957 +13 49 03.83 V C57
2021-01-23 18:24:06 s 1 -185246.62 4 +266293.95 9110.0 C57