1999 TD171

1999TD171, 40920, J99TH1D

All data for this body: [vot]

MPC data
Name (number) 1999 TD171 (40920)
a 2.86782
e 0.07346
i / sin(i) 2.8326 / 0.04942
q 2.65715
Q 3.07850
ω 275.0569
Node 57.0315
m 144.5077
n 0.2029
Epoch 2460800.5
nobs 1836
nopp 23
Years observed 1992-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.868
ep 0.048
sin(ip) 0.036
G 0.150
H 14.490
Mass
D 3.50 0.700
pV 0.190 0.1020
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.729
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis -0.0500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8675 0.0478 0.0365 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.50 0.700 0.700 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.190 0.1020 0.1020 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
14.49 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
S S 0.9549 0.9549 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT