| Word
|
Value
|
Description
|
14 |
1 |
each
band is stored separately |
19 |
0
128
512 |
for
visible image band map
(eighth bit from right) for IR band map
(tenth bit from right) for WV band map |
22 |
.xxxxx |
MIEC
absolute calibration band value (IR or WV) from the calibration section
of the Meteosat header; stored as scaled integer xxxxx |
23 |
xx.x |
space
count corresponding to the calibration value from the calibration section
of the Meteosat header; stored as scaled integer xxx |
24 |
1
or 2 |
physical
sensor number from the Meteosat header |
37 |
|
line
offset of the southeast corner of the area in image coordinates; 16-bit
value from the Meteosat header, right justified plus 1 |
38 |
|
element
offset of the southeast corner of the area in image coordinates; 16-bit
value from the Meteosat header, right justified plus 1 |
39 |
|
satellite
center longitude of rectification; 16-bit value from the Meteosat header
and right justified |
44 |
0 |
|
49 |
24 |
length
of the data block line prefix documentation, in bytes |
50 |
0 |
length
of the data block line prefix calibration, in bytes |
51 |
0 |
length
of the data block line prefix band list, in bytes |
52 |
MSAT |
image
source type; 4 bytes ASCII |
53 |
RAW |
calibration
type; 4 bytes ASCII |
54 |
0
1 |
data
was ingested as sent (full resolution)
data was sampled down (every other pixel); VIS is sent as resolution
1 in some images and resolution 2 in others |
55 |
|
bitmap
indicating types of data in the original image; bits are numbered right
to left (least to most significant bit):
bit 0: 1 if VIS is included in transmission; 0 if not
bit 1: 1 if IR is included in transmission; 0 if not
bit 2: 1 if WV is included in transmission; 0 if not
all other bits = 0 |
Meteosat
PDUS data block
The line
prefix for the data block contains the information below. For the line data,
each value is transmitted as eight bits and is stored west to east and north
to south in the area, the opposite of how it is transmitted.
| Region
|
Description
|
validity
code |
this
is present for the real-time data |
documentation |
24
bytes; this is a copy of the label that arrives with each subframe |
calibration |
0
bytes (not used) |
band
list |
0
bytes (not used) since each band is stored in a separate area |