ASTROSAT CZTI

Data Quality Report

Orbit 20221117_A12_052T04_9000005388_level2

Creation date: 2022-11-23T14:33:33.446596
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/AS1A12_052T04_9000005388cztM0_level2.fits modeM0/AS1A12_052T04_9000005388cztM0_level2_quad_clean.evt
Size (bytes)1,408,487,0401,572,226,560
Size1.3 GB 1.5 GB
Events in quadrant A8,748,46810,187,967
Events in quadrant B8,177,2489,728,073
Events in quadrant C8,481,8429,721,470
Events in quadrant D6,878,9727,622,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03331650
B04080950
C03710360
D05679560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030900
B030900
C030900
D030900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05920
B05920
C05920
D05930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1511688510.562950%
B15116876655.070518%
C15116832092.122804%
D1511682118514.014209%

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 209633 151152 0 0 0.00% 0.00%
B 209633 151038 0 0 0.00% 0.00%
C 209633 151142 0 0 0.00% 0.00%
D 209633 150916 0 0 0.00% 0.00%

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 7 110 7166 9.0 2291 2168 555.3
A 0 29 7109 8.9 2291 2168 555.3
A 9 19 7059 8.81 2291 2168 555.3
B 2 9 6964 11.78 2170 2082 414.5
B 3 80 6281 10.13 2170 2082 414.5
B 5 255 5726 8.79 2170 2082 414.5
C 1 81 6976 8.71 2246 2122 557.4
C 3 202 6814 8.42 2246 2122 557.4
C 1 80 6783 8.36 2246 2122 557.4
D 10 189 5037 6.24 1977 1810 517.2
D 7 3 5016 6.2 1977 1810 517.2
D 4 160 4964 6.1 1977 1810 517.2

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