ASTROSAT CZTI

Data Quality Report

Orbit 06341

Creation date: 2024-06-27T15:05:53.783119
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_151T01_9000000836_06341cztM0_level2.evt modeM0/AS1G06_151T01_9000000836_06341cztM0_level2_quad_clean.evt
Size (bytes)484,583,04087,480,000
Size462.1 MB 83.4 MB
Events in quadrant A3,312,565559,722
Events in quadrant B3,506,058560,180
Events in quadrant C3,153,370549,600
Events in quadrant D4,261,973526,167

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137743
B0144292
C0137852
D0168372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65031211.860680%
B65031572.414270%
C6503971.491619%
D65032003.075504%

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 7568 6504 8 8 0.11% 0.12%
B 7568 6504 28 28 0.37% 0.43%
C 7568 6504 10 10 0.13% 0.15%
D 7568 6504 92 92 1.22% 1.41%

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 13 251 93397 556.87 810 792 166.3
A 15 236 68083 404.65 810 792 166.3
A 8 15 15386 87.76 810 792 166.3
B 3 64 286597 1828.24 809 791 156.3
B 15 204 49593 312.18 809 791 156.3
B 4 172 20647 127.01 809 791 156.3
C 4 254 122731 683.43 772 777 178.4
C 9 54 11057 57.61 772 777 178.4
C 13 61 6052 29.56 772 777 178.4
D 12 220 552912 2892.97 775 750 190.9
D 13 46 279317 1459.51 775 750 190.9
D 12 221 182987 954.8 775 750 190.9

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