ASTROSAT CZTI

Data Quality Report

Orbit 07604

Creation date: 2024-06-27T15:21:43.588018
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/AS1G06_117T01_9000001046_07604cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07604cztM0_level2_quad_clean.evt
Size (bytes)628,274,880108,691,200
Size599.2 MB 103.7 MB
Events in quadrant A4,344,803675,112
Events in quadrant B4,350,929684,731
Events in quadrant C4,650,128675,324
Events in quadrant D5,085,938646,736

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190853
B0188512
C0196552
D0213962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8783710.808380%
B87831001.138563%
C87831381.571217%
D87831842.094956%

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 9293 8787 4 4 0.04% 0.05%
B 9293 8787 13 13 0.14% 0.15%
C 9293 8787 54 54 0.58% 0.61%
D 9293 8787 80 80 0.86% 0.91%

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 15 239 301924 1410.49 1050 1027 213.3
A 0 226 9821 41.22 1050 1027 213.3
A 12 194 9313 38.84 1050 1027 213.3
B 0 214 76250 370.09 1060 1032 203.2
B 0 219 54137 261.29 1060 1032 203.2
B 2 246 28385 134.58 1060 1032 203.2
C 4 254 310649 1294.84 1026 1030 239.1
C 9 68 247559 1031.0 1026 1030 239.1
C 1 16 45035 184.03 1026 1030 239.1
D 2 152 403884 1612.96 1019 988 249.8
D 5 233 183868 732.14 1019 988 249.8
D 13 104 176825 703.95 1019 988 249.8

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