ASTROSAT CZTI

Data Quality Report

Orbit 26563

Creation date: 2024-06-27T19:30:30.720747
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/AS1T03_220T01_9000003842_26563cztM0_level2.evt modeM0/AS1T03_220T01_9000003842_26563cztM0_level2_quad_clean.evt
Size (bytes)589,999,68092,030,400
Size562.7 MB 87.8 MB
Events in quadrant A3,470,014592,668
Events in quadrant B4,276,655599,515
Events in quadrant C3,976,829592,875
Events in quadrant D5,716,810560,893

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142990
B0169540
C0160530
D0214840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63141221.932214%
B63132353.722477%
C63131913.025503%
D631473511.640798%

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 7544 6314 24 24 0.32% 0.38%
B 7543 6313 91 91 1.21% 1.44%
C 7543 6313 23 23 0.30% 0.36%
D 7543 6313 581 581 7.70% 9.20%

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 9 130 118091 698.23 844 829 167.9
A 5 168 69650 409.79 844 829 167.9
A 0 13 24980 143.8 844 829 167.9
B 5 172 464602 3029.47 835 816 153.1
B 0 189 234828 1528.58 835 816 153.1
B 3 112 134224 871.43 835 816 153.1
C 3 233 620923 3303.96 821 827 187.7
C 14 238 132608 702.15 821 827 187.7
C 4 254 7291 34.44 821 827 187.7
D 7 80 976094 5050.02 800 778 193.1
D 2 250 673717 3484.36 800 778 193.1
D 12 233 544758 2816.63 800 778 193.1

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