1990 QQ8

1990QQ8, 15255, 1996 UE4, 1996UE4, J90Q08Q, J96U04E

All data for this body: [vot]

MPC data
Name (number) 1990 QQ8 (15255)
a 3.15225
e 0.16122
i / sin(i) 2.1574 / 0.03764
q 2.64405
Q 3.66046
ω 309.4391
Node 52.0523
m 48.9522
n 0.1761
Epoch 2460800.5
nobs 1765
nopp 24
Years observed 1990-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.146
ep 0.137
sin(ip) 0.027
G 0.150
H 14.180
Mass
D 9.47 0.455
pV 0.059 0.0111
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.0800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1458 0.1367 0.0272 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
9.02 3.040 3.040 Masiero 2020PSJ.....1....5M NEATM
9.48 0.460 0.460 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.050 0.0590 0.0590 Masiero 2020PSJ.....1....5M NEATM
0.059 0.0113 0.0113 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
14.18 MPC-2023-12-04 MPC-2023-12-04 Phot