ASTROSAT CZTI

Data Quality Report

Orbit 47241

Creation date: 2024-06-27T23:33:16.801811
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/AS1C09_005T01_9000006304_47241cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47241cztM0_level2_quad_clean.evt
Size (bytes)485,202,240104,708,160
Size462.7 MB 99.9 MB
Events in quadrant A7,268,193676,953
Events in quadrant B3,455,403728,216
Events in quadrant C3,191,865694,767
Events in quadrant D3,558,808632,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259482
B0145352
C0139412
D0151772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62714777.606442%
B62711001.594642%
C6271751.195982%
D62711372.184660%

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 7461 6272 300 300 4.02% 4.78%
B 7461 6272 58 58 0.78% 0.92%
C 7461 6272 60 60 0.80% 0.96%
D 7461 6272 121 121 1.62% 1.93%

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 10 83 3427277 24061.37 687 673 142.4
A 9 191 1166309 8185.01 687 673 142.4
A 13 254 10337 67.86 687 673 142.4
B 0 190 293298 2152.81 699 676 135.9
B 5 32 193766 1420.56 699 676 135.9
B 0 200 39054 282.35 699 676 135.9
C 10 9 467737 2859.55 692 695 163.3
C 0 207 6007 32.52 692 695 163.3
C 8 111 5401 28.81 692 695 163.3
D 12 218 287489 1680.0 683 662 170.7
D 2 37 256031 1495.74 683 662 170.7
D 1 47 153632 895.97 683 662 170.7

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