imap_processing.spice.time.str_yyyymmdd_to_ttj2000ns

imap_processing.spice.time.str_yyyymmdd_to_ttj2000ns(date_str: str) → int64

Convert a YYYYMMDD date string to TTJ2000 nanoseconds.

Parameters:

date_str (str) – The date string in YYYYMMDD format.

Returns:

The corresponding time in TTJ2000 nanoseconds.

Return type:

int