ASTROSAT CZTI

Data Quality Report

Orbit 23133

Creation date: 2024-06-27T18:50:19.168339
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/AS1T03_173T01_9000003416_23133cztM0_level2.evt modeM0/AS1T03_173T01_9000003416_23133cztM0_level2_quad_clean.evt
Size (bytes)456,926,400111,856,320
Size435.8 MB 106.7 MB
Events in quadrant A3,191,287734,319
Events in quadrant B3,141,574759,957
Events in quadrant C3,291,398724,673
Events in quadrant D3,759,655702,955

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138852
B0137582
C0141453
D0159862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6682160.239449%
B6682270.404071%
C6681881.317168%
D6681781.167490%

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 7607 6683 0 0 0.00% 0.00%
B 7607 6683 1 1 0.01% 0.01%
C 7606 6682 11 11 0.14% 0.16%
D 7606 6682 35 35 0.46% 0.52%

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 6 16 152697 971.89 788 770 156.3
A 13 254 9165 53.7 788 770 156.3
A 3 137 6727 38.11 788 770 156.3
B 12 111 17969 115.02 796 776 149.5
B 11 111 15612 99.25 796 776 149.5
B 14 111 13954 88.16 796 776 149.5
C 14 238 121636 684.82 765 769 176.5
C 0 10 97439 547.72 765 769 176.5
C 0 207 61016 341.35 765 769 176.5
D 1 52 573416 3111.04 765 743 184.1
D 12 233 132395 715.2 765 743 184.1
D 13 153 48114 257.34 765 743 184.1

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