ASTROSAT CZTI

Data Quality Report

Orbit 47070

Creation date: 2024-06-27T23:31:22.247279
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_9000006296_47070cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47070cztM0_level2_quad_clean.evt
Size (bytes)414,250,56091,448,640
Size395.1 MB 87.2 MB
Events in quadrant A5,306,302605,408
Events in quadrant B3,578,658620,293
Events in quadrant C2,480,081616,494
Events in quadrant D3,544,010543,896

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01941313
B01421710
C0113758
D0143995

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54722073.782895%
B54732234.074548%
C5472480.877193%
D54743245.918889%

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 6585 5476 13 13 0.20% 0.24%
B 6585 5476 103 103 1.56% 1.88%
C 6585 5475 8 8 0.12% 0.15%
D 6585 5476 246 246 3.74% 4.49%

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 2886269 22746.29 616 602 126.9
A 13 254 9460 69.82 616 602 126.9
A 0 243 8788 64.53 616 602 126.9
B 3 112 911128 7646.22 606 588 119.1
B 5 255 74868 623.76 606 588 119.1
B 5 32 55823 463.83 606 588 119.1
C 14 254 44113 304.65 609 610 142.8
C 12 249 40528 279.55 609 610 142.8
C 12 250 18394 124.54 609 610 142.8
D 12 233 852818 5677.82 600 579 150.1
D 1 52 137753 913.89 600 579 150.1
D 13 249 87943 582.04 600 579 150.1

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