ASTROSAT CZTI

Data Quality Report

Orbit 29545

Creation date: 2024-06-27T20:05:15.924754
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/AS1A10_073T07_9000004254_29545cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29545cztM0_level2_quad_clean.evt
Size (bytes)755,167,680101,692,800
Size720.2 MB 97.0 MB
Events in quadrant A3,491,482669,110
Events in quadrant B3,682,506692,127
Events in quadrant C3,680,239672,355
Events in quadrant D11,560,544575,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144592
B0150422
C0148172
D0390212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751620.918382%
B67511682.488520%
C67511392.058954%
D6751225733.432084%

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 7916 6752 0 0 0.00% 0.00%
B 7916 6752 23 23 0.29% 0.34%
C 7916 6752 0 0 0.00% 0.00%
D 7916 6751 2371 2371 29.95% 35.12%

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 13 79133 443.35 883 863 176.5
A 13 254 13161 69.66 883 863 176.5
A 3 137 8022 40.55 883 863 176.5
B 5 255 179214 1061.39 882 861 168.0
B 12 111 20169 114.9 882 861 168.0
B 11 111 18212 103.26 882 861 168.0
C 14 238 144335 704.33 865 872 203.7
C 3 233 140359 684.81 865 872 203.7
C 2 114 16040 74.46 865 872 203.7
D 8 195 7838746 40759.09 806 786 192.3
D 12 33 243149 1260.34 806 786 192.3
D 13 153 152136 787.05 806 786 192.3

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