1999XR18

25461, J99X18R

All data for this body: [vot]

MPC data
Name (number) 1999XR18 (25461)
Packed designation 25461
a 2.58084
e 0.10137
i / sin(i) 16.3275 / 0.28113
q 2.31922
Q 2.84245
ω 331.1836
Node 36.7003
m 143.3712
n 0.2377
Epoch 2459600.5
nobs 2712
nopp 20
Years observed 1991-2022
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.580
ep 0.066
sin(ip) 0.270
Value Standard error
G 0.150
H 13.660
Mass
D 4.81 0.089
pV 0.258 0.0242
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5801 0.0660 0.2698 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.78 0.094 0.094 Masiero 2011ApJ...741...68M NEATM
5.05 0.279 0.279 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.251 0.0277 0.0277 Masiero 2011ApJ...741...68M NEATM
0.281 0.0499 0.0499 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.66 MPC-2022-01-18 MPC-2022-01-18 Phot