ASTROSAT CZTI

Data Quality Report

Orbit 47702

Creation date: 2024-07-24T09:15:23.432834
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/AS1T05_213T01_9000006344_47702cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47702cztM0_level2_quad_clean.evt
Size (bytes)473,791,680109,918,080
Size451.8 MB 104.8 MB
Events in quadrant A7,045,169717,839
Events in quadrant B3,390,822745,989
Events in quadrant C3,031,995720,432
Events in quadrant D3,532,497661,101

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256752
B0148162
C0141772
D0152852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69292533.651321%
B69301091.572872%
C6930490.707071%
D6930640.923521%

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 8504 6929 14 14 0.16% 0.20%
B 8505 6930 32 32 0.38% 0.46%
C 8505 6931 3 3 0.04% 0.04%
D 8505 6931 16 16 0.19% 0.23%

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 4070141 25725.47 754 734 158.2
A 14 248 39570 245.51 754 734 158.2
A 9 191 23702 145.2 754 734 158.2
B 0 200 190001 1262.35 759 734 149.9
B 4 21 144237 957.12 759 734 149.9
B 0 198 23926 154.68 759 734 149.9
C 12 2 78999 440.53 754 756 177.6
C 14 254 9411 48.73 754 756 177.6
C 12 250 6207 30.69 754 756 177.6
D 2 165 364890 1962.2 749 725 185.6
D 5 171 123206 659.95 749 725 185.6
D 2 249 47174 250.28 749 725 185.6

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