1999 SQ11

1999SQ11, 1990 WK5, 1990WK5, 40727, J90W05K, J99S11Q

All data for this body: [vot]

MPC data
Name (number) 1999 SQ11 (40727)
a 2.74613
e 0.12548
i / sin(i) 5.8136 / 0.10129
q 2.40155
Q 3.09071
ω 293.1082
Node 76.7386
m 237.2185
n 0.2166
Epoch 2460800.5
nobs 1972
nopp 22
Years observed 1990-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Nemesis (128)
 
ap 2.746
ep 0.086
sin(ip) 0.083
G 0.150
H 14.640
Mass
D 6.53 0.244
pV 0.087 0.0131
Value
Rotational Period 4.200
Period quality 2
Spectral Class C
Spectral Class Score 5.982
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
128 Nemesis 504 Nemesis -0.2600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7456 0.0857 0.0831 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.53 0.244 0.244 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.087 0.0131 0.0131 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
14.64 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.27 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
B B 0.2847 0.2847 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.997000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT