ASTROSAT CZTI

Data Quality Report

Orbit 20230803_C07_001T10_9000005806_level2

Creation date: 2023-08-11T15:12:21.786349
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/AS1C07_001T10_9000005806cztM0_level2.fits modeM0/AS1C07_001T10_9000005806cztM0_level2_quad_clean.evt
Size (bytes)3,269,681,2804,430,640,960
Size3.0 GB 4.1 GB
Events in quadrant A19,794,55829,793,505
Events in quadrant B17,683,16625,900,823
Events in quadrant C18,990,03227,420,083
Events in quadrant D16,350,87624,914,314

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014520
B014530
C014530
D014530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078220
B078220
C078220
D078220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08459050
B010383540
C08961890
D010913170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38214317380.454804%
B382144377719.883970%
C38214499932.614983%
D382137244286.392472%

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 526977 382150 0 0 0.00% 0.00%
B 526977 381746 0 0 0.00% 0.00%
C 526977 382135 0 0 0.00% 0.00%
D 526977 381673 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 16661 9.31 5177 4873 1266.8
A 0 29 16560 9.23 5177 4873 1266.8
A 9 19 16284 9.01 5177 4873 1266.8
B 2 9 15271 12.1 4683 4479 892.0
B 3 80 12928 9.47 4683 4479 892.0
B 2 8 12346 8.82 4683 4479 892.0
C 1 81 15992 8.91 5020 4710 1266.9
C 3 202 15443 8.47 5020 4710 1266.9
C 1 80 15323 8.38 5020 4710 1266.9
D 4 160 12492 6.54 4694 4279 1254.9
D 7 3 12446 6.51 4694 4279 1254.9
D 10 189 12233 6.34 4694 4279 1254.9

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