1998 QB57

1998QB57, A1018, J98Q57B

All data for this body: [vot]

MPC data
Name (number) 1998 QB57 (101018)
a 2.69551
e 0.02681
i / sin(i) 26.8437 / 0.45156
q 2.62324
Q 2.76777
ω 197.4895
Node 171.9489
m 351.1908
n 0.2227
Epoch 2460800.5
nobs 931
nopp 18
Years observed 1998-2025
rms 0.89
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.696
ep 0.043
sin(ip) 0.452
G 0.150
H 15.140
Mass
D 4.82 0.134
pV 0.072 0.0069
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.658
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6959 0.0431 0.4523 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.58 0.239 0.239 Masiero 2011ApJ...741...68M NEATM
4.92 0.162 0.162 Masiero 2011ApJ...741...68M NEATM
7.86 2.400 2.400 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.026 0.0160 0.0410 Masiero 2021PSJ.....2..162M NEATM
0.073 0.0078 0.0078 Masiero 2011ApJ...741...68M NEATM
0.084 0.0172 0.0172 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
15.14 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
C 0.943 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT