1990 QW9

1990QW9, 1994 PW39, 1994PW39, 37576, J90Q09W, J94P39W

All data for this body: [vot]

MPC data
Name (number) 1990 QW9 (37576)
a 2.59607
e 0.28808
i / sin(i) 11.2738 / 0.19550
q 1.84821
Q 3.34394
ω 105.6995
Node 170.3596
m 149.1866
n 0.2356
Epoch 2460800.5
nobs 2470
nopp 20
Years observed 1990-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.595
ep 0.268
sin(ip) 0.208
G 0.150
H 14.350
Mass
D 3.67 0.195
pV 0.189 0.0346
Value
Rotational Period 40.000
Period quality 2
Spectral Class S
Spectral Class Score 8.118
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5952 0.2682 0.2085 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.04 0.620 0.620 Nugent 2016AJ....152...63N NEATM
3.74 0.205 0.205 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.183 0.0354 0.0354 Masiero 2011ApJ...741...68M NEATM
0.310 0.1600 0.1600 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
14.35 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
40.3 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.19 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.6626 0.5470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.6904 0.5470 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT