def __init__(self,
grating,
exptime,
mag,
template,
magtype='Vega',
band='Cousins_I.dat',
cwave='7000',
slitwidth='0.75',
binning='1x1',
airmass=1.1,
seeing=0.75,
redshift=0):
Sig2NoiseWMKO.__init__(self, 'deimos', exptime, mag, template, magtype,
band, airmass, seeing, redshift)
if grating not in keck_options['grating (DEIMOS)']:
raise e.S2NInputError(
f"{grating} not one of {keck_options['grating (DEIMOS)']}")
if binning not in keck_options['binning (DEIMOS)']:
raise e.S2NInputError(
f"{binning} not one of {keck_options['binning (DEIMOS)']}")
if slitwidth not in keck_options['slitwidth (DEIMOS)']:
raise e.S2NInputError(
f"{slitwidth} not one of {keck_options['slitwidth (DEIMOS)']}")
if cwave not in keck_options['central wavelength (DEIMOS)']:
raise e.S2NInputError(
f"{cwave} not one of {keck_options['central wavelength (DEIMOS)']}"
)
self.grating = grating
self.binning = binning
self.slitwidth = slitwidth
self.cwave = cwave
def __init__(self,
instrument,
exptime,
mag,
template,
magtype='Vega',
band='Cousins_I.dat',
airmass=1.1,
seeing=0.75,
redshift=0):
if instrument not in keck_options['instrument']:
raise e.S2NInputError(
f"{instrument} not one of {keck_options['instrument']}")
if magtype not in keck_options['mag type']:
raise e.S2NInputError(
f"{magtype} not one of {keck_options['mag type']}")
if band not in keck_options['filter']:
raise e.S2NInputError(
f"{band} not one of {keck_options['filter']}")
if template not in keck_options['template']:
raise e.S2NInputError(
f"{template} not one of {keck_options['template']}")
self.instrument = instrument
self.mag = mag
self.magtype = magtype
self.filter = band
self.template = template
self.exptime = exptime
self.airmass = airmass
self.seeing = seeing
self.redshift = redshift
def query_s2n(self, wavelength='default'):
url = 'http://etc.ucolick.org/web_s2n/hires'
browser = mechanicalsoup.StatefulBrowser()
browser.open(url)
form = browser.select_form()
form['slitwidth'] = self.slitwidth
form['binning'] = self.binning
form['exptime'] = str(self.exptime)
form['mag'] = str(self.mag)
form['ffilter'] = self.filter
if self.magtype.lower() == 'vega':
form['mtype'] = '1'
elif self.magtype.lower() == 'ab':
form['mtype'] = '2'
form['seeing'] = str(self.seeing)
form['template'] = self.template
form['airmass'] = str(self.airmass)
form['redshift'] = str(self.redshift)
data = browser.submit_selected().json()
snr = np.array(data['s2n']).T
if type(wavelength) == np.ndarray:
snr_interpolator = interp1d(snr[0], snr[1])
return snr_interpolator(wavelength)
elif wavelength == 'default':
return snr
else:
raise e.S2NInputError("Wavelength input not recognized")
def __init__(self,
slitwidth,
exptime,
mag,
template,
magtype='Vega',
band='Cousins_I.dat',
binning='1x1',
airmass=1.1,
seeing=0.75,
redshift=0):
Sig2NoiseWMKO.__init__(self, 'hires', exptime, mag, template, magtype,
band, airmass, seeing, redshift)
if binning not in keck_options['binning (HIRES)']:
raise e.S2NInputError(
f"{binning} not one of {keck_options['binning (HIRES)']}")
if slitwidth not in keck_options['slitwidth (HIRES)']:
raise e.S2NInputError(
f"{slitwidth} not one of {keck_options['slitwidth (HIRES)']}")
self.binning = binning
self.slitwidth = slitwidth
def __init__(self,
grating,
grism,
exptime,
mag,
template,
magtype='Vega',
band='Cousins_I.dat',
dichroic='D560',
slitwidth='0.7',
binning='1x1',
airmass=1.1,
seeing=0.75,
redshift=0):
Sig2NoiseWMKO.__init__(self, 'lris', exptime, mag, template, magtype,
band, airmass, seeing, redshift)
if grating not in keck_options['grating (LRIS)']:
raise e.S2NInputError(
f"{grating} not one of {keck_options['grating (LRIS)']}")
if grism not in keck_options['grism (LRIS)']:
raise e.S2NInputError(
f"{grism} not one of {keck_options['grism (LRIS)']}")
if binning not in keck_options['binning (LRIS)']:
raise e.S2NInputError(
f"{binning} not one of {keck_options['binning (LRIS)']}")
if slitwidth not in keck_options['slitwidth (LRIS)']:
raise e.S2NInputError(
f"{slitwidth} not one of {keck_options['slitwidth (LRIS)']}")
if dichroic not in keck_options['dichroic (LRIS)']:
raise e.S2NInputError(
f"{dichroic} not one of {keck_options['dichroic (LRIS)']}")
self.grating = grating
self.grism = grism
self.binning = binning
self.slitwidth = slitwidth
self.dichroic = dichroic