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
2021-05-27 13:04:02 s 1 +143091.58 1 - 1478.083 3020.0 – C57
2021-05-27 13:14:02 S 18 02 52.721 -48 55 39.94 – V C57
2021-05-27 13:14:02 s 1 +143691.16 2 - 484.619 8780.0 – C57
2021-05-27 13:24:02 S 18 02 47.602 -48 55 13.19 – V C57
2021-05-27 13:24:02 s 1 +144284.37 2 + 508.872 8880.0 – C57
2021-05-27 13:34:02 S 18 02 42.355 -48 54 45.61 – V C57
2021-05-27 13:34:02 s 1 +144871.26 3 + 1502.345 3460.0 – C57
2021-05-27 13:44:02 S 18 02 37.435 -48 54 19.22 – V C57
2021-05-27 13:44:02 s 1 +145451.88 5 + 2495.757 2660.0 – C57
2021-05-27 13:54:02 S 18 02 32.246 -48 53 49.70 – V C57
2021-05-27 13:54:02 s 1 +146026.28 9 + 3489.068 6600.0 – C57
2021-05-27 14:04:02 S 18 02 27.254 -48 53 26.02 – V C57
2021-05-27 14:04:02 s 1 +146594.52 8 + 4482.237 5410.0 – C57
2021-05-27 14:14:02 S 18 02 22.190 -48 52 57.29 – V C57
2021-05-27 14:14:02 s 1 +147156.65 0 + 5475.223 9230.0 – C57
2021-05-27 14:24:02 S 18 02 16.879 -48 52 30.29 – V C57
2021-05-27 14:24:02 s 1 +147712.70 6 + 6467.989 8190.0 – C57
2021-05-27 14:34:02 S 18 02 11.837 -48 52 03.11 – V C57
2021-05-27 14:34:02 s 1 +148262.74 6 + 7460.497 2400.0 – C57
2021-05-27 14:44:02 S 18 02 06.641 -48 51 36.79 – V C57
2021-05-27 14:44:02 s 1 +148806.81 8 + 8452.710 2010.0 – C57
2021-05-27 14:54:02 S 18 02 01.776 -48 51 08.82 – V C57
2021-05-27 14:54:02 s 1 +149344.97 2 + 9444.592 7130.0 – C57
2021-05-27 15:04:02 S 18 01 56.606 -48 50 42.11 – V C57
2021-05-27 15:04:02 s 1 +149877.25 6 +10436.108 7890.0 – C57
2021-05-27 15:14:02 S 18 01 51.466 -48 50 13.78 – V C57
2021-05-27 15:14:02 s 1 +150403.71 9 +11427.224 4420.0 – C57
2021-05-27 15:24:02 S 18 01 46.524 -48 49 47.32 – V C57
2021-05-27 15:24:02 s 1 +150924.40 7 +12417.907 6830.0 – C57
2021-05-27 15:34:02 S 18 01 41.378 -48 49 20.17 – V C57
2021-05-27 15:34:02 s 1 +151439.36 8 +13408.124 5250.0 – C57
2021-05-27 15:44:02 S 18 01 36.290 -48 48 53.86 – V C57
2021-05-27 15:44:02 s 1 +151948.65 0 +14397.845 9790.0 – C57
2021-05-27 16:04:02 S 18 01 26.388 -48 47 57.95 – V C57
2021-05-27 16:04:02 s 1 +152950.36 1 +16375.671 7750.0 – C57
2021-05-27 16:14:02 S 18 01 21.530 -48 47 33.68 – V C57
2021-05-27 16:14:02 s 1 +153442.88 1 +17363.718 1390.0 – C57
2021-05-27 16:24:02 S 18 01 16.291 -48 47 04.16 – V C57
2021-05-27 16:24:02 s 1 +153929.90 6 +18351.149 1630.0 – C57
2021-05-27 16:44:02 S 18 01 06.362 -48 46 12.00 – V C57
2021-05-27 16:44:02 s 1 +154887.64 9 +20324.053 2370.0 – C57
2021-05-27 16:54:02 S 18 01 01.320 -48 45 42.37 – V C57
2021-05-27 16:54:02 s 1 +155358.45 6 +21309.472 3090.0 – C57
2021-05-27 17:04:02 S 18 00 56.254 -48 45 17.24 – V C57
2021-05-27 17:04:02 s 1 +155823.94 5 +22294.168 870.0 – C57
2021-05-27 17:14:02 S 18 00 51.300 -48 44 48.91 – V C57
2021-05-27 17:14:02 s 1 +156284.16 0 +23278.115 5810.0 – C57
2021-05-27 17:24:02 S 18 00 46.426 -48 44 23.64 – V C57
2021-05-27 17:24:02 s 1 +156739.14 3 +24261.290 8020.0 – C57
2021-05-27 17:34:02 S 18 00 41.321 -48 43 55.20 – V C57