1999 XT157

1999XT157, 1998 QY87, 1998QY87, 41309, J98Q87Y, J99XF7T

All data for this body: [vot]

MPC data
Name (number) 1999 XT157 (41309)
a 3.06099
e 0.05500
i / sin(i) 10.1157 / 0.17564
q 2.89263
Q 3.22935
ω 129.3777
Node 247.4311
m 330.5320
n 0.1840
Epoch 2460800.5
nobs 2141
nopp 21
Years observed 1998-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.061
ep 0.028
sin(ip) 0.194
G 0.150
H 13.870
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class K
Spectral Class Score 3.042
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0609 0.0284 0.1936 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
13.87 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
K 0.507 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT