1990 QQ4

1990QQ4, 11880, 1986 UL, 1986UL, 1998 KB25, 1998KB25, J86U00L, J90Q04Q, J98K25B

All data for this body: [vot]

MPC data
Name (number) 1990 QQ4 (11880)
a 2.70975
e 0.06667
i / sin(i) 7.6285 / 0.13275
q 2.52907
Q 2.89042
ω 317.9646
Node 25.3320
m 275.5730
n 0.2210
Epoch 2460800.5
nobs 3301
nopp 24
Years observed 1990-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.709
ep 0.033
sin(ip) 0.127
G 0.150
H 13.590
Mass
D 8.56 0.111
pV 0.091 0.0124
Value
Rotational Period 7.300
Period quality 2
Spectral Class C
Spectral Class Score 6.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7093 0.0325 0.1271 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.57 3.840 3.840 Masiero 2020PSJ.....1....5M NEATM
13.61 3.550 3.550 Masiero 2012ApJ...759L...8M NEATM
8.55 0.111 0.111 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.046 0.0220 0.0220 Masiero 2012ApJ...759L...8M NEATM
0.058 0.0610 0.0610 Masiero 2020PSJ.....1....5M NEATM
0.116 0.0154 0.0154 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
13.59 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.32 2 Synodic Erasmus 2019ApJS..242...15E Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 1.000000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT