Struct CalibrationSolutions 

pub struct CalibrationSolutions {

    pub di_jones: Array3<Jones<f64>>,
    pub flagged_tiles: Vec<usize>,
    pub flagged_chanblocks: Vec<u16>,
    pub chanblock_freqs: Option<Vec1<f64>>,
    pub obsid: Option<u32>,
    pub start_timestamps: Option<Vec1<Epoch>>,
    pub end_timestamps: Option<Vec1<Epoch>>,
    pub average_timestamps: Option<Vec1<Epoch>>,
    pub max_iterations: Option<u32>,
    pub stop_threshold: Option<f64>,
    pub min_threshold: Option<f64>,
    pub raw_data_corrections: Option<RawDataCorrections>,
    pub tile_names: Option<Vec1<String>>,
    pub dipole_gains: Option<ArcArray<f64, Dim<[usize; 2]>>>,
    pub dipole_delays: Option<ArcArray<u32, Dim<[usize; 2]>>>,
    pub beam_file: Option<PathBuf>,
    pub calibration_results: Option<Array2<f64>>,
    pub baseline_weights: Option<Vec1<f64>>,
    pub uvw_min: Option<f64>,
    pub uvw_max: Option<f64>,
    pub freq_centroid: Option<f64>,
    pub modeller: Option<String>,
}

Fields

di_jones: Array3<Jones<f64>>

The direction-independent calibration solutions. This has dimensions of (num_timeblocks, total_num_tiles, total_num_chanblocks). Note that this potentially includes flagged data; other struct members help to determine what is flagged. These Jones matrices, when applied to data Jones matrices, should approximate the model Jones matrices used in calibration.

flagged_tiles: Vec<usize>

The indices of flagged tiles before calibration. Note that there may appear to be more flagged tiles in the solutions; this might happen if an unflagged has no power. The indices are zero indexed.

flagged_chanblocks: Vec<u16>

Which chanblocks are flagged? Zero indexed.

chanblock_freqs: Option<Vec1<f64>>

All chanblock frequencies (i.e. flagged and unflagged).

obsid: Option<u32>

The MWA observation ID. Allowed to be optional as not all formats provide it.

start_timestamps: Option<Vec1<Epoch>>

The start timestamps (centroids) of each timeblock used to produce these calibration solutions. It may have a different length to the first dimension of di_jones due to inadequate information.

end_timestamps: Option<Vec1<Epoch>>

The end timestamps (centroids) of each timeblock used to produce these calibration solutions. It may have a different length to the first dimension of di_jones due to inadequate information.

average_timestamps: Option<Vec1<Epoch>>

The average timestamps of each timeblock used to produce these calibration solutions. It may have a different length to the first dimension of di_jones due to inadequate information.

max_iterations: Option<u32>

The maximum allowed number of iterations during calibration.

stop_threshold: Option<f64>

The stop threshold used during calibration.

min_threshold: Option<f64>

The minimum threshold used during calibration.

raw_data_corrections: Option<RawDataCorrections>

The raw data corrections applied to the visibilities before calibration.

tile_names: Option<Vec1<String>>

The names of all of the tiles in the observation, in the order that they’re presented.

dipole_gains: Option<ArcArray<f64, Dim<[usize; 2]>>>

Gains of each of the MWA dipoles used in calibration. The rows are tiles and there are 32 columns (one per dipole; the first 16 are X dipoles and second 16 are Y dipoles).

dipole_delays: Option<ArcArray<u32, Dim<[usize; 2]>>>

Delays of each of the MWA dipoles used in calibration. The rows are tiles and there are 16 columns (one per bowtie).

beam_file: Option<PathBuf>

The beam file used for beam calculations.

calibration_results: Option<Array2<f64>>

The precision of the calibration for these results. The first dimension is timeblock, the second is chanblock.

baseline_weights: Option<Vec1<f64>>

The baseline weights for all baselines (even flagged ones, which have NaN values).

uvw_min: Option<f64>

The minimum UVW cutoff used in calibration [metres].

uvw_max: Option<f64>

The maximum UVW cutoff used in calibration [metres].

freq_centroid: Option<f64>

The centroid frequency of the observation used to convert UVW cutoffs specified in lambdas to metres [Hz].

modeller: Option<String>

What was used to model the visibilities?

Implementations

impl CalibrationSolutions

pub fn read_solutions_from_ext<P: AsRef<Path>, P2: AsRef<Path>>( file: P, metafits: Option<P2>, ) -> Result<CalibrationSolutions, HyperdriveError>

Read in calibration solutions from a file. The format of the file is determined by the file’s extension (e.g. “.fits”). If the file is actually a directory, we attempt to read RTS DI calibration solution files from the directory.

pub fn write_solutions_from_ext<P: AsRef<Path>>( &self, file: P, ) -> Result<(), HyperdriveError>

From the target file extension, write out the appropriately-formatted solutions.

It is generally preferable to use [hyperdrive::write] for hyperdrive-style files, because that allows more metadata to be written.

Trait Implementations

impl Default for CalibrationSolutions

fn default() -> CalibrationSolutions

Returns the “default value” for a type.