Module cds 

CCSDS Day Segmented (CDS) time format. CCSDS Day Segmented (CDS) Time Format (CCSDS 301.0-B-4, §3.3)

CDS encodes time as a day count since a reference epoch plus milliseconds within the day, with optional sub-millisecond resolution (microseconds or picoseconds).

P-Field

Byte 1:
  [7]     Extension flag (0 = 1-byte P-field)
  [6:4]   Time code ID: 100 = CDS
  [3]     Epoch ID: 0 = CCSDS epoch, 1 = agency-defined
  [2]     Day segment length: 0 = 16-bit, 1 = 24-bit
  [1:0]   Sub-millisecond resolution:
          00 = none, 01 = µs (16-bit), 10 = ps (32-bit)

T-Field

┌──────────┬────────────┬──────────────────┐
│ Day      │ ms of day  │ sub-ms (optional) │
│ 16/24 b  │ 32 bits    │ 16 or 32 bits     │
└──────────┴────────────┴──────────────────┘

CCSDS Epoch

Same as CUC: 1958-01-01T00:00:00 TAI.

Structs

CdsConfig

CDS time code configuration.

CdsTime

A CDS timestamp.

Enums

CdsError

Errors from CDS time operations.

EpochId

Epoch identifier.

SubMillis

Sub-millisecond resolution options.

Constants

MS_PER_DAY

Milliseconds in one day.