1. List of Descriptors

1.1. astrodata_FITS

Descriptor Short Definition Python type
instrument name of the instrument str
object name of the target str
telescope name of the telescope str
ut_date UT date datetime

1.2. astrodata_Gemini

Descriptor Short Definition Python type
airmass airmass of the observation float
amp_read_area combination of amplifier name and 1-indexed section relative to the detector. str
array_name name assigned to the array generated by a given amplifier, one array per amplifier. str
array_section section covered by the array(s), in 0-indexed pixels, relative to the detector frame (e.g. position of multiple amps read within a CCD). List of (x1, x2, y1, y2, ...) tuples list
azimuth pointing position in azimuth float
camera name of the camera str
cass_rotator_pa position angle of the Cassegrain rotator float
central_wavelength central wavelength float
coadds number of co-adds int
data_label Gemini data label str
data_section section where the sky-exposed data falls, in 0-indexed pixels. List of (x1, x2, y1, y2, ...) tuples list
dec Declination float
decker name of the decker str
detector_name name assigned to the detector str
detector_roi_setting human readable Region Of Interest setting str
detector_rois_requested section defining the Regions Of Interest, in 0-indexed pixels. List of (x1, x2, y1, y2, ...) tuples list
detector_section section covered by the detector(s), in 0-indexed pixels, relative to the whole mosaic of detectors. List of (x1, x2, y1, y2, ...) tuples list
detector_x_bin X-axis binning int
detector_y_bin Y-axis binning int
disperser name of the disperser str
dispersion value for the dispersion float
dispersion_axis dispersion axis int
elevation pointing position in elevation float
exposure_time exposure time float
filter_name name of the effective filter str
focal_plane_mask name of the mask in the focal plane str
gain gain in electrons per ADU float
gain_setting human readable gain setting (eg. low, high) str
grating name of the grating str
group_id Gemini observation group ID str
local_time local time datetime
lyot_stop name of the lyot stop str
mdf_row_id MDF row ID of a cut MOS spectrum int
nod_count number of nods int
nod_pixels nod offset in pixels int
nominal_atmospheric_extinction nomimal atmospheric extinction float
nominal_photometric_zeropoint nominal photometric zeropoint float
non_linear_level lower boundary of the non-linear regime int
observation_class class of observation (eg. calibration, science) str
observation_epoch epoch str
observation_id Gemini observation ID str
observation_type Gemini observation type str
overscan_section section where the overscan data falls, in 0-indexed pixels. List of (x1, x2, y1, y2, ...) tuples list
pixel_scale pixel scale in arcsec per pixel float
prism name of the prism str
program_id Gemini program ID str
pupil_mask name of the pupil mask str
qa_state quality assessment state (eg. pass, usable, fail) str
ra right ascension, in degrees float
raw_bg Gemini sky background band int
raw_cc Gemini cloud coverage band int
raw_iq Gemini image quality band int
raw_wv Gemini water vapor band int
read_mode Gemini name for combination for gain setting and read setting str
read_noise read noise in electrons float
read_speed_setting human readable read mode setting (eg. slow, fast) str
requested_bg PI requested Gemini sky background band int
requested_cc PI requested Gemini cloud coverage band int
requested_iq PI requested Gemini image quality band int
requested_wv PI requested Gemini water vapor band int
saturation_level saturation level int
slit name of the slit str
ut_datetime UT date and time of the observation datetime
ut_time UT time of the observation datetime
wavefront_sensor wavefront sensor used for the observation str
wavelength_band band associated with the filter or the central wavelength str
wavelength_reference_pixel pixel associated with the central wavelength float
well_depth_setting human readable well depth setting (eg. shallow, deep) str
x_offset X-axis offset relative to initial pointing position float
y_offset Y-axis offset relative to initial pointing position float

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