Changes between Version 4 and Version 5 of Sensors/ATM

Timestamp:

Feb 15, 2012, 10:22:31 AM (13 years ago)

Author:

mark1

Comment:

--

Sensors/ATM

@@ -1 +1 @@
 = ATM =
 
-ATM comes as raw data on the flight disks and is moved into files by a program called azed.  Each data frame has a 16 bit header (holding the scan number?) then 11 unsigned ints of data.  Note that there are two types of ATM file - ones containing navigation (normally az*000 but not always) and ones containing imagery.
+The NERC ARSF ATM is a multispectral scanner with 11 bands covering visible, near, short and thermal infra-red wavelengths. The instrument has been retired since the end of the 2008 flying season.
+
+Further technical information about the ATM is available from NEODC at http://www.neodc.rl.ac.uk/?option=displaypage&Itemid=52&op=page&SubMenu=-1 \\
+and from ARSF operations at http://arsf.nerc.ac.uk/instruments/atm.asp
+
+== Band wavelengths ==
+
+||ATM Band no||Lower wavelength limit (nm)||Upper wavelength limit (nm)||
+||1 || 424 || 448||
+||2 || 469 || 518||
+||3 || 522 || 601||
+||4 || 594 || 635||
+||5 || 627 || 694||
+||6 || 691 || 761||
+||7 || 754 || 924||
+||8 || 897 || 1027||
+||9 || 1600 || 1785||
+||10 || 2097 || 2391||
+||11 || 8400 || 11500||
+
+
+== Raw data format ==
+
+ATM data comes as raw on the flight disks and is moved into files by a program called azed.  Each data frame has a 16 bit header (holding the scan number?) then 11 unsigned ints of data.  Note that there are two types of ATM file - ones containing navigation (normally az*000 but not always) and ones containing imagery.
 
 There's an apparent byte pattern of "AZSYS001" at the start of the files, at least for 2007 ATM.  I suspect if the data you're looking at is old (early 90s?) it will be different as there was a change to the ATM back then sometime.
@@ -30 +53 @@
 }}}
 
-Further technical information about the ATM is available from NEODC at http://www.neodc.rl.ac.uk/?option=displaypage&Itemid=52&op=page&SubMenu=-1
+