ASTROSAT CZTI

Data Quality Report

Orbit 43569

Creation date: 2024-06-27T22:53:16.640879
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/AS1A05_174T01_9000005880_43569cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43569cztM0_level2_quad_clean.evt
Size (bytes)3,274,470,720198,025,920
Size3.0 GB 188.9 MB
Events in quadrant A21,126,3631,729,442
Events in quadrant B17,325,0031,809,877
Events in quadrant C41,655,547919,498
Events in quadrant D39,794,504341,138

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07494820
B0633939
C013535736
D012991365

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03460
B03460
C03460
D03471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17094291417.046917%
B17096181910.639916%
C170951504988.031588%
D170921704699.730868%

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 18149 17096 1433 1433 7.90% 8.38%
B 18151 17099 1024 1024 5.64% 5.99%
C 18150 17095 14247 14247 78.50% 83.34%
D 18148 17091 14625 14625 80.59% 85.57%

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 0 228 5092725 13194.86 1862 1821 385.8
A 10 99 3318170 8595.48 1862 1821 385.8
A 15 222 2408634 6238.1 1862 1821 385.8
B 4 206 5991529 16070.9 1886 1825 372.7
B 12 3 2498203 6698.0 1886 1825 372.7
B 3 42 500392 1337.7 1886 1825 372.7
C 15 174 18066593 70915.0 1071 1077 254.7
C 15 142 14357762 56356.23 1071 1077 254.7
C 15 158 1544797 6059.77 1071 1077 254.7
D 4 216 26017842 168198.02 483 461 154.7
D 4 212 4432814 28654.42 483 461 154.7
D 8 48 1017765 6576.7 483 461 154.7

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