1999 XP121

1999XP121, 43159, J99XC1P

All data for this body: [vot]

MPC data
Name (number) 1999 XP121 (43159)
a 2.90829
e 0.02203
i / sin(i) 2.0101 / 0.03508
q 2.84423
Q 2.97236
ω 63.6048
Node 2.4550
m 45.3446
n 0.1987
Epoch 2460800.5
nobs 1197
nopp 19
Years observed 1996-2025
rms 0.85
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.907
ep 0.033
sin(ip) 0.042
G 0.150
H 14.970
Mass
D 3.35 0.896
pV 0.228 0.1673
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
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-Nov-2024
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
14.97 MPC-2023-12-04 MPC-2023-12-04 Phot