1999 XP84

1999XP84, 2001 KO42, 2001KO42, 97240, J99X84P, K01K42O

All data for this body: [vot]

MPC data
Name (number) 1999 XP84 (97240)
a 3.08207
e 0.19634
i / sin(i) 11.4532 / 0.19857
q 2.47695
Q 3.68718
ω 62.7012
Node 97.6765
m 201.9376
n 0.1822
Epoch 2460800.5
nobs 1619
nopp 21
Years observed 1999-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.089
ep 0.217
sin(ip) 0.186
G 0.150
H 14.170
Mass
D 8.45 0.325
pV 0.073 0.0110
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0888 0.2173 0.1860 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.44 0.328 0.328 Masiero 2011ApJ...741...68M NEATM
8.79 2.280 2.280 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.057 0.0340 0.0340 Masiero 2020PSJ.....1....5M NEATM
0.075 0.0116 0.0116 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
14.17 MPC-2023-12-04 MPC-2023-12-04 Phot