ASTROSAT CZTI

Data Quality Report

Orbit 23512

Creation date: 2024-06-27T18:55:30.666655
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/AS1A07_112T01_9000003478_23512cztM0_level2.evt modeM0/AS1A07_112T01_9000003478_23512cztM0_level2_quad_clean.evt
Size (bytes)265,394,88032,630,400
Size253.1 MB 31.1 MB
Events in quadrant A1,389,185199,558
Events in quadrant B1,500,758201,019
Events in quadrant C1,751,509193,322
Events in quadrant D3,185,181174,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061850
B064540
C071870
D0116170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A307920.064956%
B308080.259740%
C30801123.636364%
D308040113.019481%

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 3079 3079 0 0 0.00% 0.00%
B 3080 3080 2 2 0.06% 0.06%
C 3080 3080 64 64 2.08% 2.08%
D 3080 3080 408 408 13.25% 13.25%

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 13 254 5336 67.14 360 352 74.2
A 0 226 3188 38.21 360 352 74.2
A 3 137 3117 37.25 360 352 74.2
B 0 189 39591 564.93 359 351 69.5
B 0 228 12276 171.68 359 351 69.5
B 0 229 10025 139.28 359 351 69.5
C 8 208 310278 3776.77 344 346 82.1
C 14 238 54098 655.01 344 346 82.1
C 9 54 15448 184.03 344 346 82.1
D 1 52 1521417 18072.0 337 326 84.2
D 9 85 280071 3323.63 337 326 84.2
D 12 233 45595 537.84 337 326 84.2

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