ASTROSAT CZTI

Data Quality Report

Orbit 32689

Creation date: 2024-06-27T20:40:51.169098
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/AS1A10_057T03_9000004722_32689cztM0_level2.evt modeM0/AS1A10_057T03_9000004722_32689cztM0_level2_quad_clean.evt
Size (bytes)322,041,60027,878,400
Size307.1 MB 26.6 MB
Events in quadrant A2,659,969153,378
Events in quadrant B1,696,657156,754
Events in quadrant C1,901,278154,665
Events in quadrant D3,270,198144,427

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101131
B070811
C077441
D0120691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329842512.886598%
B3298170.515464%
C3298381.152213%
D32982928.853851%

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 3298 3298 13 13 0.39% 0.39%
B 3298 3298 12 12 0.36% 0.36%
C 3298 3298 30 30 0.91% 0.91%
D 3298 3298 222 222 6.73% 6.73%

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 0 253 764262 10027.09 374 367 76.2
A 15 249 397395 5211.49 374 367 76.2
A 15 174 25055 324.06 374 367 76.2
B 3 26 106339 1430.39 385 377 74.1
B 0 219 21364 283.3 385 377 74.1
B 12 1 18191 240.47 385 377 74.1
C 0 10 220874 2538.62 372 374 86.9
C 9 236 97702 1120.54 372 374 86.9
C 3 233 72116 825.97 372 374 86.9
D 8 195 397795 4563.27 360 352 87.1
D 2 250 256559 2941.66 360 352 87.1
D 12 233 254677 2920.05 360 352 87.1

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