ASTROSAT CZTI

Data Quality Report

Orbit 43579

Creation date: 2024-06-27T22:53:24.578336
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/AS1A10_094T37_9000005884_43579cztM0_level2.fits modeM0/AS1A10_094T37_9000005884_43579cztM0_level2_quad_clean.evt
Size (bytes)1,265,405,76083,891,520
Size1.2 GB 80.0 MB
Events in quadrant A6,969,515792,090
Events in quadrant B4,792,323820,658
Events in quadrant C19,714,749264,538
Events in quadrant D14,786,063134,283

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260971
B0193812
C0637581
D0490711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74846388.524853%
B74844035.384821%
C7484742799.238375%
D7484748399.986638%

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 7784 7485 370 370 4.75% 4.94%
B 7784 7485 104 104 1.34% 1.39%
C 7783 7483 7288 7288 93.64% 97.39%
D 7783 7483 3784 3784 48.62% 50.57%

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 99 1536927 9272.8 795 780 165.7
A 10 83 827194 4988.57 795 780 165.7
A 15 222 667646 4025.47 795 780 165.7
B 4 206 486551 3128.82 809 785 155.3
B 0 219 375881 2416.0 809 785 155.3
B 0 199 132757 850.03 809 785 155.3
C 15 174 12791080 193057.5 277 278 66.3
C 15 142 4368186 65926.86 277 278 66.3
C 15 158 936009 14123.42 277 278 66.3
D 4 212 6466229 106584.71 169 159 60.7
D 4 216 3727586 61441.76 169 159 60.7
D 13 187 405499 6681.5 169 159 60.7

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