ASTROSAT CZTI

Data Quality Report

Orbit 28543

Creation date: 2024-06-27T19:53:08.085411
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_102T07_9000004102_28543cztM0_level2.evt modeM0/AS1A10_102T07_9000004102_28543cztM0_level2_quad_clean.evt
Size (bytes)284,172,48046,033,920
Size271.0 MB 43.9 MB
Events in quadrant A1,814,942313,380
Events in quadrant B1,706,590315,281
Events in quadrant C1,633,137292,770
Events in quadrant D3,248,890260,943

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073862
B070611
C067531
D0116891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A29591063.582291%
B2959983.311930%
C29591083.649882%
D295960220.344711%

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 4199 2959 18 18 0.43% 0.61%
B 4199 2959 10 10 0.24% 0.34%
C 4199 2959 0 0 0.00% 0.00%
D 4198 2958 489 489 11.65% 16.53%

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 15 174 174041 2024.78 425 417 85.7
A 13 254 5379 57.87 425 417 85.7
A 3 137 3918 40.83 425 417 85.7
B 0 230 32946 408.69 416 407 79.6
B 10 245 31708 393.14 416 407 79.6
B 12 111 9425 113.27 416 407 79.6
C 14 238 65351 693.84 397 399 93.6
C 3 233 13881 144.02 397 399 93.6
C 13 61 2747 25.08 397 399 93.6
D 1 52 986937 10619.45 385 375 92.9
D 8 195 748013 8047.65 385 375 92.9
D 13 104 26053 276.4 385 375 92.9

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