Day and Night at time of fragment H impact

Map showing day and night in Antarctica at the time
of fragment H impact.  The South Pole InfraRed EXperiment
(SPIREX) is located at the South Pole which is at the
center of this map.  Daylight is orange, night is deep blue.
The sun rise/set line is red.  The three twilights are
shown as three bands:
  Twilight                Color       Sun altitude
  Civil Twilight:         Pink          0 to  -6
  Nautical Twilight       Lavender     -6 to -12
  Astronomical Twilight   Blue        -12 to -18