IAA RAS IAA Minor Planet Database

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
2021-02-04 18:54:06 s 1 -142881.15 9 +336266.08 3950.0 – C57
2021-02-04 19:04:06 S 07 40 42.235 +11 10 51.89 – V C57
2021-02-04 19:04:06 s 1 -143148.29 6 +335948.66 9840.0 – C57
2021-02-04 19:14:06 S 07 40 41.402 +11 10 45.73 – V C57
2021-02-04 19:14:06 s 1 -143415.01 5 +335630.26 5030.0 – C57
2021-02-04 19:24:06 S 07 40 40.603 +11 10 41.77 – V C57
2021-02-04 19:24:06 s 1 -143681.31 4 +335310.90 9540.0 – C57
2021-02-04 19:34:06 S 07 40 39.667 +11 10 36.19 – V C57
2021-02-04 19:34:06 s 1 -143947.19 1 +334990.55 3350.0 – C57
2021-02-04 19:44:06 S 07 40 38.988 +11 10 32.84 – V C57
2021-02-04 19:44:06 s 1 -144212.64 6 +334669.23 6460.0 – C57
2021-02-04 19:54:06 S 07 40 38.102 +11 10 26.54 – V C57
2021-02-04 19:54:06 s 1 -144477.67 7 +334346.94 8870.0 – C57
2021-02-04 20:04:06 S 07 40 37.366 +11 10 21.00 – V C57
2021-02-04 20:04:06 s 1 -144742.28 2 +334023.66 570.0 – C57
2021-02-04 20:14:06 S 07 40 36.586 +11 10 14.99 – V C57
2021-02-04 20:14:06 s 1 -145006.46 1 +333699.41 1580.0 – C57
2021-02-04 20:24:06 S 07 40 35.772 +11 10 10.34 – V C57
2021-02-04 20:24:06 s 1 -145270.21 1 +333374.18 1870.0 – C57
2021-02-04 20:34:06 S 07 40 35.033 +11 10 06.46 – V C57
2021-02-04 20:34:06 s 1 -145533.53 1 +333047.98 1450.0 – C57
2021-02-04 20:44:06 S 07 40 34.214 +11 10 00.84 – V C57
2021-02-04 20:44:06 s 1 -145796.42 0 +332720.79 320.0 – C57
2021-02-04 20:54:06 S 07 40 33.353 +11 09 53.57 – V C57
2021-02-04 20:54:06 s 1 -146058.87 7 +332392.62 8470.0 – C57
2021-02-04 21:04:06 S 07 40 32.609 +11 09 48.60 – V C57
2021-02-04 21:04:06 s 1 -146320.89 9 +332063.48 5900.0 – C57
2021-02-04 21:14:06 S 07 40 31.692 +11 09 45.61 – V C57
2021-02-04 21:14:06 s 1 -146582.48 5 +331733.35 2610.0 – C57
2021-02-04 23:34:53 C 07 40 20.07 +11 07 44.0 – o K95
2021-02-04 23:36:12 C 07 40 19.90 +11 07 43.2 – o K95
2021-02-04 23:56:49 C 07 40 18.32 +11 07 33.3 – o K95
2021-02-04 23:58:10 C 07 40 18.18 +11 07 31.9 – o K95
2021-02-05 00:14:26 C 07 40 16.92 +11 07 23.4 – o K95
2021-02-05 04:15:27 C 07 39 58.99 +11 05 12.9 – V G96
2021-02-05 04:23:26 C 07 39 58.37 +11 05 08.8 – V G96
2021-02-05 04:31:25 C 07 39 57.75 +11 05 04.8 – V G96
2021-02-05 04:39:26 C 07 39 57.13 +11 05 00.7 – V G96
2021-02-05 04:40:10 C 07 39 57.06 +11 05 00.1 – V 703
2021-02-05 04:47:42 C 07 39 56.46 +11 04 56.5 – V 703
2021-02-05 04:55:13 C 07 39 55.88 +11 04 52.7 – V 703
2021-02-05 05:02:45 C 07 39 55.29 +11 04 48.8 – V 703
2021-02-06 04:57:59 C 07 38 07.17 +10 52 42.9 – V G96
2021-02-06 05:05:23 C 07 38 06.61 +10 52 39.0 – V G96
2021-02-06 05:12:47 C 07 38 06.05 +10 52 35.5 – V G96
2021-02-06 05:20:12 C 07 38 05.48 +10 52 31.6 – V G96
2021-02-06 05:52:14 C 07 38 03.02 +10 52 14.9 – V 703
2021-02-06 06:00:27 C 07 38 02.40 +10 52 11.7 – V 703
2021-02-06 06:08:40 C 07 38 01.77 +10 52 07.4 – V 703
2021-02-06 06:16:53 C 07 38 01.14 +10 52 03.4 – V 703