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
2021-05-29 22:24:02 s 1 +162298.14 7 +265965.12 5730.0 – C57
2021-05-29 22:34:02 S 17 38 17.954 -46 27 27.83 – V C57
2021-05-29 22:34:02 s 1 +162086.24 0 +266503.69 2310.0 – C57
2021-05-29 23:04:02 S 17 38 06.994 -46 26 15.18 – V C57
2021-05-29 23:04:02 s 1 +161445.99 5 +268112.06 1850.0 – C57
2021-05-29 23:34:02 S 17 37 56.062 -46 25 01.63 – V C57
2021-05-29 23:34:02 s 1 +160799.03 7 +269709.44 6280.0 – C57
2021-05-29 23:44:02 S 17 37 52.570 -46 24 36.58 – V C57
2021-05-29 23:44:02 s 1 +160581.90 8 +270239.47 1100.0 – C57
2021-05-29 23:54:02 S 17 37 48.763 -46 24 12.85 – V C57
2021-05-29 23:54:02 s 1 +160364.04 6 +270768.28 4280.0 – C57
2021-05-30 00:04:02 S 17 37 45.209 -46 23 48.41 – V C57
2021-05-30 00:04:02 s 1 +160145.45 6 +271295.87 5820.0 – C57
2021-05-30 00:14:02 S 17 37 41.474 -46 23 21.84 – V C57
2021-05-30 00:14:02 s 1 +159926.13 9 +271822.25 5720.0 – C57
2021-05-30 00:24:02 S 17 37 37.920 -46 22 58.69 – V C57
2021-05-30 00:24:02 s 1 +159706.10 0 +272347.42 4010.0 – C57
2021-05-30 00:34:02 S 17 37 34.308 -46 22 34.68 – V C57
2021-05-30 00:34:02 s 1 +159485.34 1 +272871.38 670.0 – C57
2021-05-30 00:54:02 S 17 37 27.132 -46 21 45.76 – V C57
2021-05-30 00:54:02 s 1 +159041.67 7 +273915.68 9190.0 – C57
2021-05-30 01:04:02 S 17 37 23.582 -46 21 22.32 – V C57
2021-05-30 01:04:02 s 1 +158818.77 9 +274436.02 1060.0 – C57
2021-05-30 01:34:02 S 17 37 12.610 -46 20 09.20 – V C57
2021-05-30 01:34:02 s 1 +158145.85 6 +275989.83 7170.0 – C57
2021-05-30 01:44:02 S 17 37 08.890 -46 19 44.00 – V C57
2021-05-30 01:44:02 s 1 +157920.15 0 +276505.37 2740.0 – C57
2021-05-30 01:54:02 S 17 37 05.414 -46 19 20.46 – V C57
2021-05-30 01:54:02 s 1 +157693.74 9 +277019.71 6750.0 – C57
2021-05-30 02:04:02 S 17 37 01.865 -46 18 55.76 – V C57
2021-05-30 02:04:02 s 1 +157466.65 8 +277532.85 9210.0 – C57
2021-05-30 02:14:02 S 17 36 58.219 -46 18 33.12 – V C57
2021-05-30 02:14:02 s 1 +157238.87 8 +278044.79 140.0 – C57
2021-05-30 02:24:02 S 17 36 54.574 -46 18 07.63 – V C57
2021-05-30 02:24:02 s 1 +157010.41 3 +278555.55 9530.0 – C57
2021-05-30 02:44:02 S 17 36 47.429 -46 17 19.61 – V C57
2021-05-30 02:44:02 s 1 +156551.44 1 +279573.48 3730.0 – C57
2021-05-30 02:54:02 S 17 36 43.949 -46 16 55.56 – V C57
2021-05-30 02:54:02 s 1 +156320.93 9 +280080.66 8560.0 – C57
2021-05-30 03:04:02 S 17 36 40.246 -46 16 31.44 – V C57
2021-05-30 03:04:02 s 1 +156089.76 5 +280586.65 1890.0 – C57
2021-05-30 03:14:02 S 17 36 36.698 -46 16 08.18 – V C57
2021-05-30 03:14:02 s 1 +155857.92 0 +281091.46 3720.0 – C57
2021-05-30 03:24:02 S 17 36 33.108 -46 15 42.37 – V C57
2021-05-30 03:24:02 s 1 +155625.40 9 +281595.08 4050.0 – C57
2021-05-30 03:44:02 S 17 36 25.934 -46 14 53.56 – V C57
2021-05-30 03:44:02 s 1 +155158.39 7 +282598.77 280.0 – C57
2021-05-30 03:54:02 S 17 36 22.411 -46 14 29.83 – V C57
2021-05-30 03:54:02 s 1 +154923.90 2 +283098.85 6190.0 – C57
2021-05-30 04:04:02 S 17 36 18.859 -46 14 05.71 – V C57