ASTROSAT CZTI

Data Quality Report

Orbit 34061

Creation date: 2024-06-27T20:56:03.663555
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_001T04_9000004868_34061cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34061cztM0_level2_quad_clean.evt
Size (bytes)113,904,00017,827,200
Size108.6 MB 17.0 MB
Events in quadrant A868,593123,906
Events in quadrant B1,205,207114,271
Events in quadrant C562,118119,145
Events in quadrant D753,035114,856

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032032
B041331
C021631
D028671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A849101.177856%
B84935641.931684%
C849313.651355%
D84930.353357%

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 849 849 1 1 0.12% 0.12%
B 848 848 295 295 34.79% 34.79%
C 849 849 26 26 3.06% 3.06%
D 849 849 1 1 0.12% 0.12%

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 15 169 451392 19852.62 105 103 22.7
A 10 83 8576 372.74 105 103 22.7
A 13 6 1555 63.87 105 103 22.7
B 5 31 248858 12414.57 95 93 20.0
B 5 15 242897 12117.09 95 93 20.0
B 5 14 179790 8967.75 95 93 20.0
C 0 10 132533 5653.54 95 95 23.4
C 15 214 41451 1765.41 95 95 23.4
C 3 233 8309 350.64 95 95 23.4
D 13 168 228996 8821.77 98 94 25.9
D 8 195 125359 4827.65 98 94 25.9
D 10 118 8928 340.46 98 94 25.9

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