ASTROSAT CZTI

Data Quality Report

Orbit 09562

Creation date: 2024-06-27T15:47:45.670835
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/AS1G07_069T01_9000001356_09562cztM0_level2.evt modeM0/AS1G07_069T01_9000001356_09562cztM0_level2_quad_clean.evt
Size (bytes)386,484,48068,276,160
Size368.6 MB 65.1 MB
Events in quadrant A2,716,542424,835
Events in quadrant B2,735,826424,132
Events in quadrant C2,595,340424,452
Events in quadrant D3,269,996397,169

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013826
B013716
C013822
D013826

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182
B0180
C0183
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138752136
B0140072211
C0137412121
D0163162867

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5714691.207560%
B5678731.285664%
C5711480.840483%
D55831522.722551%

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 8525 6281 0 0 0.00% 0.00%
B 8525 6268 1 1 0.01% 0.02%
C 8525 6283 0 0 0.00% 0.00%
D 8525 6196 85 85 1.00% 1.37%

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 1 162 53352 376.51 683 668 139.9
A 1 178 15002 102.44 683 668 139.9
A 1 161 14662 100.01 683 668 139.9
B 0 214 40316 304.84 679 661 130.1
B 4 80 16361 120.69 679 661 130.1
B 12 111 14844 109.03 679 661 130.1
C 13 61 5006 28.25 664 667 153.6
C 12 4 2019 8.8 664 667 153.6
C 3 202 1558 5.8 664 667 153.6
D 1 52 357992 2290.66 641 626 156.0
D 2 16 270530 1730.04 641 626 156.0
D 7 71 83905 533.81 641 626 156.0

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