ASTROSAT CZTI

Data Quality Report

Orbit 10242

Creation date: 2024-06-27T15:57:10.135992
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/AS1G07_011T03_9000001476_10242cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10242cztM0_level2_quad_clean.evt
Size (bytes)174,787,20033,376,320
Size166.7 MB 31.8 MB
Events in quadrant A1,198,497219,349
Events in quadrant B1,245,919213,151
Events in quadrant C1,184,440221,872
Events in quadrant D1,491,033175,337

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013278
B013274
C013274
D012664

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123257131
B0138218638
C0127197498
D01672210721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167
B0189
C0189
D0178

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A255670.273865%
B246290.365556%
C258340.154859%
D239970.291788%

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 4101 3021 0 0 0.00% 0.00%
B 4097 2965 0 0 0.00% 0.00%
C 4099 3028 0 0 0.00% 0.00%
D 4099 2712 0 0 0.00% 0.00%

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 8 15 5667 82.28 307 301 65.2
A 15 174 3371 47.07 307 301 65.2
A 4 2 2975 41.0 307 301 65.2
B 4 239 30064 506.76 298 292 58.8
B 10 247 22079 370.84 298 292 58.8
B 0 214 10665 176.56 298 292 58.8
C 9 68 4974 65.57 300 302 71.3
C 14 67 3946 51.14 300 302 71.3
C 13 61 2304 28.1 300 302 71.3
D 8 195 234185 3452.86 275 266 67.7
D 1 52 93599 1377.68 275 266 67.7
D 2 16 43888 643.9 275 266 67.7

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