ASTROSAT CZTI

Data Quality Report

Orbit 10158

Creation date: 2024-06-27T15:55:45.046102
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/AS1A03_039T01_9000001462_10158cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10158cztM0_level2_quad_clean.evt
Size (bytes)454,858,56092,433,600
Size433.8 MB 88.2 MB
Events in quadrant A3,155,400590,057
Events in quadrant B3,448,568596,138
Events in quadrant C3,078,655596,436
Events in quadrant D3,656,736568,858

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135235
B0142102
C0134428
D0150077

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6419681.059355%
B6420971.510903%
C6417640.997351%
D64181191.854160%

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 7575 6420 1 1 0.01% 0.02%
B 7575 6420 14 14 0.18% 0.22%
C 7575 6420 0 0 0.00% 0.00%
D 7575 6420 30 30 0.40% 0.47%

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 8 15 21943 130.0 808 791 162.7
A 15 223 11080 63.23 808 791 162.7
A 0 226 7412 40.69 808 791 162.7
B 4 239 84146 553.66 806 788 150.6
B 4 81 83423 548.86 806 788 150.6
B 0 214 76859 505.26 806 788 150.6
C 14 67 12425 64.56 785 790 180.2
C 14 234 6586 32.16 785 790 180.2
C 13 61 6053 29.2 785 790 180.2
D 1 52 258585 1269.34 773 758 203.1
D 8 195 118554 579.94 773 758 203.1
D 2 16 107051 523.3 773 758 203.1

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