1999 XA171

1999XA171, 2001 FX78, 2001FX78, 45202, J99XH1A, K01F78X

All data for this body: [vot]

MPC data
Name (number) 1999 XA171 (45202)
a 2.74864
e 0.06413
i / sin(i) 6.3973 / 0.11142
q 2.57238
Q 2.92490
ω 22.1847
Node 52.0243
m 224.5129
n 0.2163
Epoch 2460800.5
nobs 1559
nopp 21
Years observed 1998-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.748
ep 0.061
sin(ip) 0.098
G 0.150
H 14.690
Mass
D 5.91 0.208
pV 0.116 0.0269
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7481 0.0612 0.0981 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.91 0.208 0.208 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.116 0.0269 0.0269 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
14.69 MPC-2023-12-04 MPC-2023-12-04 Phot