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 23:24:02 s 1 +169967.47 9 +58978.197 3810.0 – C57
2021-05-27 23:34:02 S 17 57 46.668 -48 27 45.36 – V C57
2021-05-27 23:34:02 s 1 +170255.83 7 +59920.236 3150.0 – C57
2021-05-27 23:44:02 S 17 57 41.772 -48 27 19.69 – V C57
2021-05-27 23:44:02 s 1 +170540.33 4 +60860.924 3220.0 – C57
2021-05-27 23:54:02 S 17 57 36.826 -48 26 50.93 – V C57
2021-05-27 23:54:02 s 1 +170821.00 0 +61800.254 4090.0 – C57
2021-05-28 00:04:02 S 17 57 32.429 -48 26 25.51 – V C57
2021-05-28 00:04:02 s 1 +171097.86 4 +62738.217 5830.0 – C57
2021-05-28 00:14:02 S 17 57 27.518 -48 25 59.59 – V C57
2021-05-28 00:14:02 s 1 +171370.95 5 +63674.806 8510.0 – C57
2021-05-28 00:24:02 S 17 57 22.920 -48 25 31.08 – V C57
2021-05-28 00:24:02 s 1 +171640.30 2 +64610.011 2210.0 – C57
2021-05-28 00:34:02 S 17 57 18.151 -48 25 05.20 – V C57
2021-05-28 00:34:02 s 1 +171905.93 3 +65543.827 7000.0 – C57
2021-05-28 00:44:02 S 17 57 13.421 -48 24 38.63 – V C57
2021-05-28 00:44:02 s 1 +172167.87 7 +66476.246 2940.0 – C57
2021-05-28 00:54:02 S 17 57 08.784 -48 24 12.53 – V C57
2021-05-28 00:54:02 s 1 +172426.16 1 +67407.261 110.0 – C57
2021-05-28 01:04:02 S 17 57 04.198 -48 23 44.27 – V C57
2021-05-28 01:04:02 s 1 +172680.81 4 +68336.865 8570.0 – C57
2021-05-28 01:14:02 S 17 56 59.122 -48 23 17.48 – V C57
2021-05-28 01:14:02 s 1 +172931.86 3 +69265.051 8400.0 – C57
2021-05-28 01:24:02 S 17 56 54.634 -48 22 50.34 – V C57
2021-05-28 01:24:02 s 1 +173179.33 4 +70191.814 9660.0 – C57
2021-05-28 01:34:02 S 17 56 50.064 -48 22 25.28 – V C57
2021-05-28 01:34:02 s 1 +173423.25 5 +71117.147 2410.0 – C57
2021-05-28 01:44:02 S 17 56 45.293 -48 21 59.33 – V C57
2021-05-28 01:44:02 s 1 +173663.65 3 +72041.043 6740.0 – C57
2021-05-28 01:54:02 S 17 56 40.522 -48 21 31.90 – V C57
2021-05-28 01:54:02 s 1 +173900.55 3 +72963.499 2680.0 – C57
2021-05-28 02:04:02 S 17 56 35.729 -48 21 04.32 – V C57
2021-05-28 02:04:02 s 1 +174133.98 2 +73884.507 330.0 – C57
2021-05-28 02:14:02 S 17 56 31.418 -48 20 38.33 – V C57
2021-05-28 02:14:02 s 1 +174363.96 5 +74804.062 9730.0 – C57
2021-05-28 02:24:02 S 17 56 26.587 -48 20 10.10 – V C57
2021-05-28 02:24:02 s 1 +174590.52 9 +75722.160 950.0 – C57
2021-05-28 02:34:02 S 17 56 22.025 -48 19 43.75 – V C57
2021-05-28 02:34:02 s 1 +174813.69 9 +76638.794 4060.0 – C57
2021-05-28 02:44:02 S 17 56 17.323 -48 19 17.72 – V C57
2021-05-28 02:44:02 s 1 +175033.49 9 +77553.961 9120.0 – C57
2021-05-28 02:54:02 S 17 56 12.734 -48 18 52.31 – V C57
2021-05-28 02:54:02 s 1 +175249.95 4 +78467.655 6180.0 – C57
2021-05-28 03:04:02 S 17 56 08.016 -48 18 23.83 – V C57
2021-05-28 03:04:02 s 1 +175463.09 0 +79379.873 5320.0 – C57
2021-05-28 03:14:02 S 17 56 03.420 -48 17 57.98 – V C57
2021-05-28 03:14:02 s 1 +175672.93 1 +80290.609 6580.0 – C57
2021-05-28 03:24:02 S 17 55 58.656 -48 17 30.98 – V C57
2021-05-28 03:24:02 s 1 +175879.50 0 +81199.859 30.0 – C57
2021-05-28 03:34:02 S 17 55 54.233 -48 17 04.63 – V C57