1998 QX78

1998QX78, 1999 TT291, 1999TT291, 44284, J98Q78X, J99TT1T

All data for this body: [vot]

MPC data
Name (number) 1998 QX78 (44284)
a 2.60572
e 0.14800
i / sin(i) 13.6513 / 0.23601
q 2.22006
Q 2.99138
ω 121.8938
Node 212.9908
m 116.2343
n 0.2343
Epoch 2460800.5
nobs 2716
nopp 21
Years observed 1998-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.604
ep 0.100
sin(ip) 0.248
G 0.150
H 14.030
Mass
D 4.72 0.196
pV 0.265 0.0315
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 3.204
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6044 0.1002 0.2482 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.68 0.362 0.362 Masiero 2011ApJ...741...68M NEATM
4.73 0.233 0.233 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.261 0.0604 0.0604 Masiero 2011ApJ...741...68M NEATM
0.267 0.0369 0.0369 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
14.03 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
S 0.534 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT