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🚚 DESHIMA measurement set by DataArray

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dems

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DESHIMA measurement set by DataArray

Installation

pip install dems==2024.7.2

Usage

from dems.d2 import MS


da = MS.new(
    data=[[0.0, ...], ...],
    mask=[[False, ...], ...],
    weight=[[1.0, ...], ...],
    ...
)

DataArray specifications

Category Variable name Variable type Description Units Default Data type DataArray dims DataArray dtype
Data data Data Data values - - numpy.ndarray (time, chan) -
mask Coordinate Data masks - False numpy.ndarray (time, chan) bool
weight Coordinate Data weights - 1.0 numpy.ndarray (time, chan) float64
long_name Attribute Data name - "Brightness" str - -
units Attribute Data units - "K" str - -
name Name DEMS name - "DEMS" str - -
Dimensions time Dimension Start time in UTC - 1970-01-01T00:00:00.000000000 numpy.ndarray (time,) datetime64[ns]
chan Dimension Channel ID - 0 numpy.ndarray (chan,) int64
Labels beam Coordinate Beam label - "" numpy.ndarray (time,) str (<U16)
scan Coordinate Scan label - "" numpy.ndarray (time,) str (<U16)
subscan Coordinate Sub-scan label - "" numpy.ndarray (time,) str (<U16)
state Coordinate State label - "" numpy.ndarray (time,) str (<U16)
Telescope pointing lon Coordinate Sky longitude deg 0.0 numpy.ndarray (time,) float64
lat Coordinate Sky latitude deg 0.0 numpy.ndarray (time,) float64
lon_origin Coordinate Reference sky longitude deg 0.0 numpy.ndarray (time,) float64
lat_origin Coordinate Reference sky latitude deg 0.0 numpy.ndarray (time,) float64
frame Coordinate Sky coordinate frame - "altaz" numpy.ndarray () str (<U16)
Weather information temperature Coordinate Ground atmospheric temperature K 0.0 numpy.ndarray (time,) float64
pressure Coordinate Ground atmospheric pressure hPa 0.0 numpy.ndarray (time,) float64
humidity Coordinate Ground relative humidity % 0.0 numpy.ndarray (time,) float64
wind_speed Coordinate Ground wind speed m s^-1 0.0 numpy.ndarray (time,) float64
wind_direction Coordinate Ground wind direction deg 0.0 numpy.ndarray (time,) float64
Data information bandwidth Coordinate Effective channel bandwidth Hz 0.0 numpy.ndarray (chan,) float64
frequency Coordinate Channel center frequency Hz 0.0 numpy.ndarray (chan,) float64
beam_major Coordinate Beam major axis deg 0.0 numpy.ndarray (chan,) float64
beam_minor Coordinate Beam minor axis deg 0.0 numpy.ndarray (chan,) float64
beam_pa Coordinate Beam position angle deg 0.0 numpy.ndarray (chan,) float64
exposure Coordinate Sample exposure time s 0.0 numpy.ndarray () float64
interval Coordinate Sample interval time s 0.0 numpy.ndarray () float64
Observation information observation Attribute Observation name - "" str - -
observer Attribute Observer name - "" str - -
project Attribute Project name - "" str - -
object Attribute Object name - "" str - -
telescope_name Attribute Telescope name - "" str - -
telescope_diameter Attribute Telescope dish diameter m 0.0 float - -
telescope_coordinates Attribute Telescope ITRS coordinates m (0.0, 0.0, 0.0) "tuple[float, float, float]" - -
ASTE specific aste_cabin_temperature Coordinate [ASTE] Cabin temperature K 0.0 numpy.ndarray (time,) float64
aste_obs_group Attribute [ASTE] Observation group - "" str - -
aste_obs_id Attribute [ASTE] Observation ID - "" str - -
aste_obs_project Attribute [ASTE] Observation project - "" str - -
aste_obs_file Attribute [ASTE] Observation instruction (= observation) - "" str - -
aste_obs_user Attribute [ASTE] Observer (= observer) - "" str - -
aste_subref_x Coordinate [ASTE] Subreflector offset of X axis mm 0.0 numpy.ndarray (time,) float64
aste_subref_y Coordinate [ASTE] Subreflector offset of Y axis mm 0.0 numpy.ndarray (time,) float64
aste_subref_z Coordinate [ASTE] Subreflector offset of Z axis mm 0.0 numpy.ndarray (time,) float64
aste_subref_xt Coordinate [ASTE] Subreflector rotation of X axis deg 0.0 numpy.ndarray (time,) float64
aste_subref_yt Coordinate [ASTE] Subreflector rotation of Y axis deg 0.0 numpy.ndarray (time,) float64
aste_subref_zt Coordinate [ASTE] Subreflector rotation of Z axis deg 0.0 numpy.ndarray (time,) float64
aste_misti_lon Coordinate [ASTE] MiSTI sky longitude deg 0.0 numpy.ndarray (time,) float64
aste_misti_lat Coordinate [ASTE] MiSTI sky latitude deg 0.0 numpy.ndarray (time,) float64
aste_misti_pwv Coordinate [ASTE] MiSTI measured PWV mm 0.0 numpy.ndarray (time,) float64
aste_misti_frame Coordinate [ASTE] MiSTI sky coordinate frame - "altaz" numpy.ndarray () str (<U16)
DESHIMA 2.0 specific d2_mkid_id Coordinate [DESHIMA 2.0] MKID master ID (= chan) - "" numpy.ndarray (chan,) int64
d2_mkid_type Coordinate [DESHIMA 2.0] MKID type - "" numpy.ndarray (chan,) str (<U16)
d2_mkid_frequency Coordinate [DESHIMA 2.0] MKID center frequency Hz 0.0 numpy.ndarray (chan,) float64
d2_mkid_q Coordinate [DESHIMA 2.0] MKID quality factor - 0.0 numpy.ndarray (chan,) float64
d2_resp_fwd Coordinate [DESHIMA 2.0] Forward efficiency - 0.0 numpy.ndarray (chan,) float64
d2_resp_p0 Coordinate [DESHIMA 2.0] Proportional coefficient of responsivity K^-0.5 0.0 numpy.ndarray (chan,) float64
d2_resp_t0 Coordinate [DESHIMA 2.0] Correction temperature of responsivity K 0.0 numpy.ndarray (chan,) float64
d2_roomchopper_isblocking Coordinate [DESHIMA 2.0] Whether room chopper is blocking sensor - False numpy.ndarray (time,) bool
d2_skychopper_isblocking Coordinate [DESHIMA 2.0] Whether sky chopper is blocking sensor - False numpy.ndarray (time,) bool
d2_ddb_version Attribute [DESHIMA 2.0] DDB version - "" str - -
d2_demerge_version Attribute [DESHIMA 2.0] demerge version - "" str - -
d2_dems_version Attribute [DESHIMA 2.0] DEMS version - "" str - -
d2_merge_datetime Attribute [DESHIMA 2.0] Date and time of the data merge - - str - -
d2_merge_options Attribute [DESHIMA 2.0] Options passed to the data merge - {} dict[str, Any] - -