ASTROSAT CZTI

Data Quality Report

Orbit 33933

Creation date: 2024-06-27T20:54:17.687447
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T04_088T01_9000004844_33933cztM0_level2.evt modeM0/AS1T04_088T01_9000004844_33933cztM0_level2_quad_clean.evt
Size (bytes)269,475,84020,949,120
Size257.0 MB 20.0 MB
Events in quadrant A2,392,71350,377
Events in quadrant B1,796,917136,747
Events in quadrant C1,475,163133,895
Events in quadrant D2,320,218128,048

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087801
B070081
C058081
D086961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A256595337.153996%
B25651827.095517%
C2565491.910331%
D2565562.183236%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2565 2565 236 236 9.20% 9.20%
B 2565 2565 126 126 4.91% 4.91%
C 2565 2565 36 36 1.40% 1.40%
D 2565 2565 41 41 1.60% 1.60%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 169 1536900 34350.94 218 214 44.7
A 10 83 5466 117.4 218 214 44.7
A 0 127 4573 97.44 218 214 44.7
B 5 172 544985 9719.14 289 283 56.0
B 0 190 43573 772.43 289 283 56.0
B 15 35 14148 247.39 289 283 56.0
C 0 10 127336 1851.88 293 294 68.6
C 15 214 111338 1618.68 293 294 68.6
C 3 233 36891 533.47 293 294 68.6
D 8 195 851343 10490.98 294 287 81.1
D 2 250 100595 1236.5 294 287 81.1
D 7 223 76823 943.46 294 287 81.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter