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LUCI - Exposure Time Calculator
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LUCI 1 & 2 zero points are from Jochen Heidt dated 24-Nov-2016.
Object Characteristics
Point source
Extended source
Template Spectrum:
B0V
A0V
F0V
G0V
K0V
M0V
E0_galaxy
Sa_galaxy
Sb_galaxy
Sc_galaxy
uniform
Redshift:
Blackbody
with T=
K
Single line
with
... Wavelength:
micron
... Flux:
erg/s/cm
2
... Width:
Å
Target magnitude
(Vega):
U
B
V
R
I
z
J
H
K
Ks
Br_gam
FeII
H2
P_beta
P_gam
J_low
J_high
Y1
Y2
OH_1060
OH_1190
HeI
HKspec
zJspec
clear
=
mag
Atmospheric Conditions
Water vapor:
1.00
1.60
3.00
mm
Airmass:
1.00
1.25
1.50
1.75
2.00
2.50
Seeing:
arcsec
Sky brightness
for the zenith (Vega):
mag
uniform flux density distribution, no sky lines
Background file
with 1.6 mm water vapor and selected airmass
Theoretical background spectrum
Telescope Mode
Seeing-limited mode
Diffraction-limited mode
Strehl calculator
Strehl ratio:
Instrument Configuration
LUCI 1
LUCI 2
Imaging mode
Spectroscopic mode
Filter:
z
J
H
K
Ks
Br_gam
FeII
H2
P_beta
P_gam
J_low
J_high
Y1
Y2
OH_1060
OH_1190
HeI
HKspec
zJspec
clear
Camera:
N1.8
N3.75
Slit width:
0.25
0.50
0.75
1.00
1.50
2.00
Grating
central wavelength (µm) / Lines per mm:
0.960 / 040
1.250 / 040
1.650 / 040
2.200 / 040
1.175 / 200
1.930 / 200
1.000 / 210
1.250 / 210
1.650 / 210
2.200 / 210
Exposure Parameters
SNR
Total exposure time
sec
Detector Integration Time (DIT):
sec
(the minimum DIT is 2.53 sec)
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