1981 TT

1981TT, 09290, 1981 UE11, 1981UE11, 1991 OT, 1991OT, J81T00T, J81U11E, J91O00T

All data for this body: [vot]

MPC data
Name (number) 1981 TT (9290)
a 2.25652
e 0.19499
i / sin(i) 4.2450 / 0.07402
q 1.81652
Q 2.69652
ω 130.8434
Node 204.8246
m 332.7328
n 0.2908
Epoch 2460800.5
nobs 3010
nopp 23
Years observed 1981-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.256
ep 0.149
sin(ip) 0.089
G 0.150
H 14.870
Mass
D 2.76 0.297
pV 0.291 0.1111
Value
Rotational Period
Period quality None
Spectral Class A
Spectral Class Score 4.674
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.3500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2562 0.1492 0.0888 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.37 0.480 0.480 Nugent 2016AJ....152...63N NEATM
3.01 0.379 0.379 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.280 0.1400 0.1400 Nugent 2016AJ....152...63N NEATM
0.309 0.1827 0.1827 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 0.779 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT