ASTROSAT CZTI

Data Quality Report

Orbit 16244

Creation date: 2024-06-27T17:19:52.234952
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/AS1T02_112T01_9000002390_16244cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16244cztM0_level2_quad_clean.evt
Size (bytes)544,973,760107,400,960
Size519.7 MB 102.4 MB
Events in quadrant A4,190,165688,976
Events in quadrant B4,308,486689,639
Events in quadrant C3,728,747688,571
Events in quadrant D3,774,997670,384

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172322
B0175691
C0156511
D0162721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74002483.351351%
B74001602.162162%
C7400891.202703%
D7400520.702703%

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 7666 7402 112 112 1.46% 1.51%
B 7666 7402 51 51 0.67% 0.69%
C 7666 7402 2 2 0.03% 0.03%
D 7666 7402 25 25 0.33% 0.34%

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 667889 3611.04 905 886 184.7
A 9 143 17334 89.05 905 886 184.7
A 13 248 16522 84.65 905 886 184.7
B 7 220 338307 1924.38 907 884 175.3
B 3 64 124068 702.54 907 884 175.3
B 0 198 59306 333.19 907 884 175.3
C 3 233 163839 800.34 870 876 203.6
C 14 238 133285 650.28 870 876 203.6
C 0 207 40667 195.42 870 876 203.6
D 1 52 204461 943.4 887 864 215.8
D 7 38 97997 450.08 887 864 215.8
D 10 70 47233 214.86 887 864 215.8

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