from enum import StrEnum


class Sentinel1Band(StrEnum):
    """Band identifiers for Sentinel-1 imagery.

    These represent the SAR polarization channels.
    See: https://sentiwiki.copernicus.eu/web/s1-products
    """

    VV = "vv"  # Vertical transmit, Vertical receive
    VH = "vh"  # Vertical transmit, Horizontal receive
    HH = "hh"  # Horizontal transmit, Horizontal receive
    HV = "hv"  # Horizontal transmit, Vertical receive
