1998 YO9

1998YO9, 49446, J98Y09O

All data for this body: [vot]

MPC data
Name (number) 1998 YO9 (49446)
a 2.58753
e 0.12687
i / sin(i) 14.5141 / 0.25062
q 2.25925
Q 2.91581
ω 116.1091
Node 257.3979
m 167.6532
n 0.2368
Epoch 2460800.5
nobs 2126
nopp 22
Years observed 1983-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.588
ep 0.086
sin(ip) 0.268
G 0.150
H 14.200
Mass
D 4.11 0.091
pV 0.385 0.0450
Value
Rotational Period 28.320
Period quality 1
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5883 0.0857 0.2683 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.11 0.091 0.091 Masiero 2011ApJ...741...68M NEATM
5.20 1.700 1.700 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.180 0.1230 0.1230 Masiero 2012ApJ...759L...8M NEATM
0.417 0.0484 0.0484 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
14.20 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
28.326 1 Synodic Waszczak 2015AJ....150...75W Lightcurve