1998 SD159

1998SD159, 1999 XT33, 1999XT33, 44422, J98SF9D, J99X33T

All data for this body: [vot]

MPC data
Name (number) 1998 SD159 (44422)
a 2.73164
e 0.05591
i / sin(i) 3.2769 / 0.05716
q 2.57891
Q 2.88436
ω 132.8322
Node 322.6730
m 249.1121
n 0.2183
Epoch 2460800.5
nobs 2533
nopp 22
Years observed 1991-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.732
ep 0.064
sin(ip) 0.068
G 0.150
H 14.160
Mass
D 4.87 0.144
pV 0.259 0.0253
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 1.524
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7324 0.0639 0.0682 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.85 0.151 0.151 Masiero 2011ApJ...741...68M NEATM
5.09 0.480 0.480 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.206 0.0550 0.0550 Masiero 2012ApJ...759L...8M NEATM
0.273 0.0285 0.0285 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
14.16 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 0.254 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT