IAA RAS IAA Minor Planet Database

408752 (1991 TB2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7923427538 ± 2.63e-08
Semi-major axis (a)2.0455116665 AU ± 8.47e-09
Inclination (i)7.92973060° ± 4.53e-06
Long. of Asc. Node (Ω)291.88268535° ± 2.63e-05
Arg. of Perihelion (ω)199.40451026° ± 2.67e-05
Mean Anomaly (M)212.92918717° ± 6.36e-06
Mean Motion (n)0.3369064573°/day ± 2.09e-09
Perihelion dist (q)0.42476532 AU ± 5.39e-08
Aphelion dist (Q)3.66625801 AU ± 5.60e-08
Orbital Period2.92551912 yr ± 1.82e-08
Physical Parameters
H (abs. magnitude)17.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.816″
Uncertainty0
Orbit TypeApollo
MOID0.110734 AU
Observations Used2480
Oppositions22
Arc Total1991-2024
First Observation Used1991-09-15
Last Observation Used2024-07-09
Observations (4916)
Date Type RA Dec Mag Band Observatory
2021-05-31 00:54:02 s 1 +120968.01 8 +337090.70 9140.0 – C57
2021-05-31 01:04:02 S 17 29 10.236 -45 24 24.01 – V C57
2021-05-31 01:04:02 s 1 +120669.40 9 +337450.71 4760.0 – C57
2021-05-31 01:14:01 S 17 29 07.128 -45 24 00.43 – V C57
2021-05-31 01:14:01 s 1 +120370.42 2 +337809.69 9580.0 – C57
2021-05-31 01:24:02 S 17 29 03.907 -45 23 37.18 – V C57
2021-05-31 01:24:02 s 1 +120071.05 9 +338167.63 3600.0 – C57
2021-05-31 01:34:02 S 17 29 00.574 -45 23 13.45 – V C57
2021-05-31 01:34:02 s 1 +119771.32 1 +338524.54 6830.0 – C57
2021-05-31 01:44:02 S 17 28 57.226 -45 22 50.81 – V C57
2021-05-31 01:44:02 s 1 +119471.21 0 +338880.42 9270.0 – C57
2021-05-31 02:04:02 S 17 28 50.714 -45 22 03.65 – V C57
2021-05-31 02:04:02 s 1 +118869.87 4 +339589.08 1790.0 – C57
2021-05-31 02:14:02 S 17 28 47.621 -45 21 41.62 – V C57
2021-05-31 02:14:02 s 1 +118568.65 2 +339941.87 1880.0 – C57
2021-05-31 02:24:02 S 17 28 44.546 -45 21 17.28 – V C57
2021-05-31 02:24:02 s 1 +118267.06 4 +340293.62 1200.0 – C57
2021-05-31 02:34:02 S 17 28 41.191 -45 20 56.00 – V C57
2021-05-31 02:34:02 s 1 +117965.11 1 +340644.35 9750.0 – C57
2021-05-31 02:44:01 S 17 28 37.992 -45 20 32.14 – V C57
2021-05-31 02:44:01 s 1 +117662.79 5 +340994.05 7530.0 – C57
2021-05-31 02:54:02 S 17 28 34.675 -45 20 09.53 – V C57
2021-05-31 02:54:02 s 1 +117360.11 6 +341342.73 4540.0 – C57
2021-05-31 03:04:02 S 17 28 31.675 -45 19 46.02 – V C57
2021-05-31 03:04:02 s 1 +117057.07 7 +341690.38 800.0 – C57
2021-05-31 03:14:02 S 17 28 28.531 -45 19 25.86 – V C57
2021-05-31 03:14:02 s 1 +116753.67 9 +342037.00 6300.0 – C57
2021-05-31 03:34:02 S 17 28 21.763 -45 18 36.47 – V C57
2021-05-31 03:34:02 s 1 +116145.81 4 +342727.18 5060.0 – C57
2021-05-31 03:44:02 S 17 28 18.588 -45 18 13.61 – V C57
2021-05-31 03:44:02 s 1 +115841.34 9 +343070.74 8310.0 – C57
2021-05-31 03:54:02 S 17 28 15.542 -45 17 50.46 – V C57
2021-05-31 03:54:02 s 1 +115536.53 2 +343413.27 830.0 – C57
2021-05-31 04:04:02 S 17 28 12.218 -45 17 27.46 – V C57
2021-05-31 04:04:02 s 1 +115231.36 4 +343754.78 2610.0 – C57
2021-05-31 04:14:01 S 17 28 08.916 -45 17 03.59 – V C57
2021-05-31 04:14:01 s 1 +114925.84 6 +344095.28 3660.0 – C57
2021-05-31 04:24:02 S 17 28 05.789 -45 16 41.74 – V C57
2021-05-31 04:24:02 s 1 +114619.98 1 +344434.75 3980.0 – C57
2021-05-31 04:34:02 S 17 28 02.626 -45 16 18.66 – V C57
2021-05-31 04:34:02 s 1 +114313.76 9 +344773.21 3570.0 – C57
2021-05-31 04:44:02 S 17 27 59.479 -45 15 55.84 – V C57
2021-05-31 04:44:02 s 1 +114007.21 2 +345110.65 2450.0 – C57
2021-05-31 04:54:02 S 17 27 56.210 -45 15 32.15 – V C57
2021-05-31 04:54:02 s 1 +113700.31 2 +345447.08 600.0 – C57
2021-05-31 05:34:02 S 17 27 43.459 -45 13 59.81 – V C57
2021-05-31 05:34:02 s 1 +112469.31 0 +346782.64 6100.0 – C57
2021-05-31 05:54:02 S 17 27 36.977 -45 13 14.30 – V C57
2021-05-31 05:54:02 s 1 +111851.78 8 +347444.34 4640.0 – C57
2021-05-31 06:14:02 S 17 27 30.840 -45 12 27.50 – V C57