Merit Ntuple: GlastRelease-v7r3p5
Event summary for generation of the FT1 record
see FT1 definition| Variable | Description |
|---|---|
| FT1EventId | RunNo*(number of events in file) + EventNo |
| FT1Energy | (MeV) estimate for energy |
| FT1Theta,FT1Phi | (deg) reconstructed direction with respect to instrument coordinate system |
| FT1Ra,FT1Dec | (deg) reconstructed direction in equatorial coordinates |
| FT1ZenithTheta,FT1EarthAzimuth | (deg) reconstucted direction with respect to local zenith system |
| FT1ConvPointX,FT1ConvPointY,FT1ConvPointZ | (m) conversion point of event, whether single track or vertex, 999 if no tracks |
| FT1Livetime | (s) Cumulative live time, from start of run, or mission |
FilterAlg Variables
| Variable | Description |
|---|---|
| FilterStatus_HI | bits 15-31 of the filter status word |
| FilterStatus_LO | bits 0-14 of the filter status word |
| FilterAlgStatus | Status generated by FilterAlg |
| FilterAngSep | Filter status separation . |
These items are added to the merit tuple to give the current instrument orientation.
- PtTime (s) Current time, same as the elapsed time
- PtLat,PtLon (deg) lattitude and longitude
- PtAlt (km) altitude
- PtMagLat magnetic latitude
- PtPos[3] (m) current orbit position
- PtRax,PtDecx (deg) equatorial coordinates for orientation of S/C x-axis
- PtRaz,PtDecz (deg) equatorial coordinates for orientation of S/C z-axis
Generated on Fri Feb 24 01:26:29 2006 by Doxygen1.3.3
| Last updated by: Chuck Patterson 02/24/2006 |