Bernese CRD files

The Bernese CRD DataSource reads station coordinate data from Bernese CRD files.

Type

type: bernese_crd

About Bernese CRD Files

CRD (Coordinate) files are generated by the Bernese GNSS Software. They contain station coordinates in the format specified in the Bernese 5.2 manual, section 24.7.1 "Station Coordinates".

CRD files have the following characteristics:

No uncertainty information
No weight information
Contains a flag field
Contains an epoch timestamp in the header

Options

Option	Type	Required	Default	Description
`filename`	`string`	Yes	-	Path to the CRD file to read
`discard_flags`	`list[string]`	No	`[]`	List of flags to discard from the data. `A` for constrained, `W` for weighted.
`sx`	`float`	No	`0.0`	Standard deviation in X direction
`sy`	`float`	No	`0.0`	Standard deviation in Y direction
`sz`	`float`	No	`0.0`	Standard deviation in Z direction
`w`	`float`	No	`1.0`	Weight for all coordinates
`t`	`float`	No	-	Timestamp in decimal years

Example CRD File Format

A10_2237: WEEKLY COMBINED SOLUTION 10 deg for week 2237 by DK_   06-DEC-22 10:48
--------------------------------------------------------------------------------
LOCAL GEODETIC DATUM: IGb14             EPOCH: 2022-11-23 12:00:00

NUM  STATION NAME           X (M)          Y (M)          Z (M)     FLAG

  1  BOR1 12205M002    3738358.14966  1148173.99055  5021815.92242    W
  2  BUDD 10101S001    3513649.04104   778955.02287  5248202.12784    A
  3  BUDP 10101M003    3513637.97403   778956.66523  5248216.59775    A
  4  ESBC 10118M001    3582104.72928   532590.21554  5232755.16124    A
  5  ESBH 10115M002    3585278.72001   531971.41288  5230646.68451

Filtering by Flags

CRD files contain flags (typically "A" or "W") indicating whether stations are constrained or weighted. To exclude certain flags:

- name: bernese_data
  type: bernese_crd
  filename: data.crd
  discard_flags: [W]

This discards all coordinates with the "W" flag.