1999 XY157

1999XY157, 43167, J99XF7Y

All data for this body: [vot]

MPC data
Name (number) 1999 XY157 (43167)
a 2.85739
e 0.17786
i / sin(i) 8.4972 / 0.14776
q 2.34917
Q 3.36561
ω 149.2938
Node 239.4288
m 132.4694
n 0.2041
Epoch 2460800.5
nobs 1753
nopp 21
Years observed 1998-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.860
ep 0.143
sin(ip) 0.162
G 0.150
H 14.480
Mass
D 3.74 0.649
pV 0.289 0.0446
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.452
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8599 0.1435 0.1620 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.74 0.649 0.649 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.289 0.0446 0.0446 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
14.48 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 0.8240 0.8650 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9180 0.8650 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT