1999 XP121

1999XP121, 43159, J99XC1P

All data for this body: [vot]

MPC data
Name (number) 1999 XP121 (43159)
a 2.90606
e 0.02161
i / sin(i) 2.0152 / 0.03517
q 2.84325
Q 2.96887
ω 69.9046
Node 2.6928
m 279.7560
n 0.1990
Epoch 2460200.5
nobs 1047
nopp 18
Years observed 1996-2023
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.907
ep 0.033
sin(ip) 0.042
Value Standard error
G 0.150
H 15.000
Mass
D 3.35 0.896
pV 0.228 0.1673
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9069 0.0332 0.0418 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.35 0.896 0.896 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.228 0.1673 0.1673 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
15.00 MPC-2023-12-04 MPC-2023-12-04 Phot