1997 UD8

1997UD8, 1977 DZ4, 1977DZ4, 42598, J77D04Z, J97U08D

All data for this body: [vot]

MPC data
Name (number) 1997 UD8 (42598)
a 2.40413
e 0.17897
i / sin(i) 7.2010 / 0.12535
q 1.97385
Q 2.83440
ω 234.9422
Node 4.2093
m 271.1030
n 0.2644
Epoch 2460800.5
nobs 2008
nopp 22
Years observed 1974-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.403
ep 0.197
sin(ip) 0.129
G 0.150
H 14.980
Mass
D 5.31 0.211
pV 0.090 0.0309
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 4.400
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4026 0.1970 0.1293 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.44 1.130 1.130 Nugent 2016AJ....152...63N NEATM
5.34 0.215 0.215 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.090 0.0361 0.0361 Masiero 2011ApJ...741...68M NEATM
0.090 0.0600 0.0600 Nugent 2016AJ....152...63N 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
14.98 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
B B 0.7334 0.7334 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT