Qudsi (qudsira@bu.edu)
Data Pipeline for LEXI
Ramiz Qudsi
Center for Space Physics, Boston University
Qudsi (qudsira@bu.edu)
Data Flowchart
LEXI Data Flow Diagram
Binary to Decimal
time, V1-V4,
HK values
time, x, y,
pulse height
(detector coordinate)
Exposure Map
Integrate
Background
Corrected Image
Download to
ground station
Raw
Binary
File
Dewarp
corrections
time, x, y,
pulse height
(detector coordinate)
Remove
X-ray background from ROSAT
A new file is generated from the spacecraft
Add
time, RA, dec
(J2000)
Spacecraft
Pointing
Vector
Publish CDF to CDAWeb/GSFC
Distribute
Locally
Write and save Engineering CDF files
Data Archiving
Write and save Science CDF files
Long-term
Legend
Level 0
Level 1a
Level 1b
Level 2a
Level 2b
Qudsi (qudsira@bu.edu)
The L1 science file
The L1 housekeeping file
Data Levels
Qudsi (qudsira@bu.edu)
Real-time Data Visualisation
Qudsi (qudsira@bu.edu)
Lexi User Interface for Graphical Interaction (LUIGI)
Qudsi (qudsira@bu.edu)
Lexi User Interface for Graphical Interaction (LUIGI)
Science Tab
Qudsi (qudsira@bu.edu)
Lexi User Interface for Graphical Interaction (LUIGI)
Housekeeping Tab
Qudsi (qudsira@bu.edu)
Data Delivery
Qudsi (qudsira@bu.edu)
Time-line
Level 0 : In real time
Level 1a, 1b : Within a few minutes
Level 2a : Within a few hours
Level 2b : Within 6 months
Location
CDAWeb/GSFC
Qudsi (qudsira@bu.edu)