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
2021-06-02 19:54:01 s 1 -16207.232 0 +405236.36 4830.0 – C57
2021-06-02 20:04:01 S 17 10 06.818 -42 58 50.92 – V C57
2021-06-02 20:04:01 s 1 -16564.718 0 +405225.59 2980.0 – C57
2021-06-02 20:14:01 S 17 10 04.334 -42 58 31.73 – V C57
2021-06-02 20:14:01 s 1 -16922.171 0 +405213.96 910.0 – C57
2021-06-02 20:24:01 S 17 10 01.615 -42 58 11.35 – V C57
2021-06-02 20:24:01 s 1 -17279.592 0 +405201.46 8620.0 – C57
2021-06-02 20:34:01 S 17 09 59.482 -42 57 53.17 – V C57
2021-06-02 20:34:01 s 1 -17636.978 0 +405188.10 6100.0 – C57
2021-06-02 20:44:01 S 17 09 56.911 -42 57 31.86 – V C57
2021-06-02 20:44:01 s 1 -17994.331 0 +405173.88 3350.0 – C57
2021-06-02 20:54:01 S 17 09 54.406 -42 57 11.34 – V C57
2021-06-02 20:54:01 s 1 -18351.648 0 +405158.79 380.0 – C57
2021-06-02 21:04:01 S 17 09 51.698 -42 56 50.32 – V C57
2021-06-02 21:04:01 s 1 -18708.929 0 +405142.83 7170.0 – C57
2021-06-02 21:14:01 S 17 09 49.298 -42 56 32.68 – V C57
2021-06-02 21:14:01 s 1 -19066.174 0 +405126.01 3730.0 – C57
2021-06-02 21:24:01 S 17 09 46.903 -42 56 12.05 – V C57
2021-06-02 21:24:01 s 1 -19423.381 0 +405108.33 60.0 – C57
2021-06-02 21:44:01 S 17 09 41.923 -42 55 30.14 – V C57
2021-06-02 21:44:01 s 1 -20137.679 0 +405070.36 1990.0 – C57
2021-06-02 21:54:01 S 17 09 39.497 -42 55 08.87 – V C57
2021-06-02 21:54:01 s 1 -20494.769 0 +405050.09 7600.0 – C57
2021-06-02 22:04:01 S 17 09 37.025 -42 54 48.64 – V C57
2021-06-02 22:04:01 s 1 -20851.818 0 +405028.94 2960.0 – C57
2021-06-02 22:14:01 S 17 09 34.416 -42 54 28.12 – V C57
2021-06-02 22:14:01 s 1 -21208.825 0 +405006.94 8080.0 – C57
2021-06-02 22:24:01 S 17 09 32.126 -42 54 08.10 – V C57
2021-06-02 22:24:01 s 1 -21565.791 0 +404984.07 2950.0 – C57
2021-06-02 22:34:01 S 17 09 29.590 -42 53 50.28 – V C57
2021-06-02 22:34:01 s 1 -21922.714 0 +404960.33 7570.0 – C57
2021-06-02 22:44:01 S 17 09 26.676 -42 53 26.34 – V C57
2021-06-02 22:44:01 s 1 -22279.592 0 +404935.73 1940.0 – C57
2021-06-02 22:54:01 S 17 09 24.638 -42 53 07.62 – V C57
2021-06-02 22:54:01 s 1 -22636.427 0 +404910.27 6050.0 – C57
2021-06-02 23:04:01 S 17 09 22.164 -42 52 47.39 – V C57
2021-06-02 23:04:01 s 1 -22993.216 0 +404883.94 9910.0 – C57
2021-06-02 23:14:01 S 17 09 19.663 -42 52 26.65 – V C57
2021-06-02 23:14:01 s 1 -23349.959 0 +404856.74 3510.0 – C57
2021-06-02 23:24:01 S 17 09 17.275 -42 52 07.14 – V C57
2021-06-02 23:24:01 s 1 -23706.655 0 +404828.69 6850.0 – C57
2021-06-02 23:34:01 S 17 09 14.772 -42 51 48.10 – V C57
2021-06-02 23:34:01 s 1 -24063.304 0 +404799.77 9930.0 – C57
2021-06-02 23:44:01 S 17 09 12.310 -42 51 27.86 – V C57
2021-06-02 23:44:01 s 1 -24419.904 0 +404769.98 2750.0 – C57
2021-06-02 23:54:01 S 17 09 09.845 -42 51 07.88 – V C57
2021-06-02 23:54:01 s 1 -24776.456 0 +404739.33 5290.0 – C57
2021-06-03 00:04:01 S 17 09 07.380 -42 50 46.32 – V C57
2021-06-03 00:04:01 s 1 -25132.957 0 +404707.82 7580.0 – C57
2021-06-03 00:14:01 S 17 09 04.939 -42 50 26.95 – V C57