"High IASI MetOp-C Ash/Dust BTD (1 in [9.0, 10.2]) at (28N,2W) 20:46Z"

"2021-07-09 20:46Z granule 416"

"Brightness temperature difference for channel 2347 (1231.5
cm-1) minus channel 2093 (1168 cm-1). High values almost
always indicate dust storms or volcanic eruptions.

See http://satepsanone.nesdis.noaa.gov/pub/IASI/M03/alerts/ASH_BTD/index.html."

Latitude (N), Longitude (E), "Ash Brightness Temperature Difference", "SO2 Brightness Temperature Difference", "Brightness Temperature for Channel 2347 (1231.50 cm-1)", "Brightness Temperature for Channel 2093 (1168.00 cm-1)"
  27.92,   -1.56,   10.18,   -0.03,  298.80,  288.62