WORLD SPACE OBSERVATORY - ULTRAVIOLET
Exposure Time Calculator
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Contact
Channel
FUV
UVO
Filter wheel (1):
open
G010
P122 (spectroscopic)
P155 (spectroscopic)
Filter wheel (2):
open
F125LP
F140LP
F150LP
F165LP
Filter wheel (1):
open
GBP
F255W
F336W
F555W
Filter wheel (2):
open
F232N
F280N
F308N
F656N
F673N
Input Data
Line center (Å)
FWHM (Å)
Max Flux (erg cm
-2
s
-1
Å
-1
)
Continuum flux
Spectral line:
Black body temperature:
Kelvin
Vmag
A flat continuum:
erg cm
-2
s
-1
Å
-1
Upload spectral file:
Kurucz models with temperature:
O3V - 45000t - 45g
O5V - 41000t - 45g
O6V - 39000t - 40g
O7V - 37000t - 40g
O8V - 35000t - 40g
O9V - 33000t - 40g
B0V - 30000t - 40g
B1V - 25000t - 40g
B3V - 19000t - 40g
B5V - 15000t - 40g
B8V - 12000t - 40g
A0V - 09500t - 40g
A1V - 09250t - 40g
A3V - 08450t - 40g
A5V - 08250t - 40g
F0V - 07250t - 40g
F2V - 07000t - 40g
F5V - 06500t - 40g
F8V - 06250t - 40g
G0V - 06000t - 45g
G2V - 05750t - 45g
G8V - 05500t - 45g
K0V - 05250t - 45g
K2V - 04750t - 45g
K4V - 04500t - 45g
K5V - 04250t - 45g
K7V - 04000t - 45g
M0V - 03750t - 45g
M2V - 03500t - 45g
M6V - 03500t - 50g
and Vmag
Background levels
None
Output
Exposure time in seconds
Signal to noise ratio
Wavelength for which the SNR or Exposure Time should be calculated -only in spectroscopy mode- (λ):
Å