ASTROSAT CZTI

Data Quality Report

Orbit 43134

Creation date: 2024-06-27T22:48:29.324457
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/AS1A09_107T01_9000005854_43134cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43134cztM0_level2_quad_clean.evt
Size (bytes)329,967,36057,588,480
Size314.7 MB 54.9 MB
Events in quadrant A6,387,589242,730
Events in quadrant B1,737,286426,773
Events in quadrant C1,797,487419,029
Events in quadrant D1,991,124383,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216201
B079041
C077461
D086991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3848164642.775468%
B3848100.259875%
C384830.077963%
D3848350.909563%

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 5251 3849 1521 1521 28.97% 39.52%
B 5251 3849 2 2 0.04% 0.05%
C 5251 3849 1 1 0.02% 0.03%
D 5251 3849 26 26 0.50% 0.68%

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 15 222 4768371 76952.7 294 287 62.0
A 10 83 222152 3580.71 294 287 62.0
A 15 237 158326 2550.61 294 287 62.0
B 0 229 52230 630.53 417 404 82.2
B 5 255 21772 259.97 417 404 82.2
B 12 111 10256 119.86 417 404 82.2
C 15 214 157811 1607.01 416 417 97.9
C 0 207 7859 75.98 416 417 97.9
C 4 254 4241 39.04 416 417 97.9
D 1 52 298111 2898.37 415 402 102.7
D 5 32 31765 305.34 415 402 102.7
D 2 234 20224 192.98 415 402 102.7

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