ASTROSAT CZTI

Data Quality Report

Orbit 05038

Creation date: 2024-06-27T14:50:30.613245
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/AS1G05_250T02_9000000638_05038cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05038cztM0_level2_quad_clean.evt
Size (bytes)481,726,08063,645,120
Size459.4 MB 60.7 MB
Events in quadrant A3,052,620374,963
Events in quadrant B3,227,672376,716
Events in quadrant C2,939,686374,816
Events in quadrant D4,933,137352,347

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132633
B0135102
C0131052
D0190922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64151201.870616%
B64151281.995323%
C6415851.325019%
D64152874.473889%

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 7585 6417 1 1 0.01% 0.02%
B 7585 6417 8 8 0.11% 0.12%
C 7585 6417 0 0 0.00% 0.00%
D 7585 6417 201 201 2.65% 3.13%

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 0 247 23294 143.99 780 766 156.5
A 15 234 10823 64.28 780 766 156.5
A 0 226 9818 57.86 780 766 156.5
B 15 204 114086 764.97 781 765 148.1
B 0 219 45930 304.88 781 765 148.1
B 15 54 38161 252.44 781 765 148.1
C 14 67 8081 42.59 750 754 172.0
C 13 61 6178 31.53 750 754 172.0
C 9 54 2567 10.54 750 754 172.0
D 12 227 1369071 7598.6 745 722 180.1
D 13 235 247590 1370.89 745 722 180.1
D 1 7 197170 1090.9 745 722 180.1

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