ASTROSAT CZTI

Data Quality Report

Orbit 34011

Creation date: 2024-06-27T20:55:21.529989
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/AS1A11_106T03_9000004864_34011cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34011cztM0_level2_quad_clean.evt
Size (bytes)524,779,20081,826,560
Size500.5 MB 78.0 MB
Events in quadrant A2,616,154532,777
Events in quadrant B3,480,384528,575
Events in quadrant C3,814,838522,003
Events in quadrant D5,595,319495,556

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116313
B0142682
C0149462
D0205582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A570270.122764%
B57022093.665381%
C57022103.682918%
D57024608.067345%

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 8687 5704 0 0 0.00% 0.00%
B 8687 5704 141 141 1.62% 2.47%
C 8687 5704 159 159 1.83% 2.79%
D 8687 5704 429 429 4.94% 7.52%

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 12 16 52067 391.33 652 638 131.4
A 10 83 17177 125.85 652 638 131.4
A 13 6 15744 114.94 652 638 131.4
B 5 172 600986 4907.18 641 625 122.3
B 0 189 89695 728.03 641 625 122.3
B 0 190 65775 532.52 641 625 122.3
C 4 254 661769 4588.92 623 629 144.1
C 15 214 262615 1818.43 623 629 144.1
C 0 10 217369 1504.38 623 629 144.1
D 8 195 930359 5613.99 609 595 165.6
D 7 223 657360 3965.6 609 595 165.6
D 2 250 556573 3357.04 609 595 165.6

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