1999 XP220

1999XP220, 41328, J99XM0P

All data for this body: [vot]

MPC data
Name (number) 1999 XP220 (41328)
a 2.79852
e 0.26531
i / sin(i) 9.0436 / 0.15719
q 2.05604
Q 3.54100
ω 282.0612
Node 116.3332
m 158.4684
n 0.2105
Epoch 2460800.5
nobs 2979
nopp 22
Years observed 1995-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.799
ep 0.225
sin(ip) 0.148
G 0.150
H 14.190
Mass
D 4.55 0.449
pV 0.257 0.0473
Value
Rotational Period 7.319
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7992 0.2254 0.1476 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.55 0.449 0.449 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.257 0.0473 0.0473 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
14.19 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.31861 2 Synodic Pal 2020ApJS..247...26P Lightcurve