ASTROSAT CZTI

Data Quality Report

Orbit 20240209_A13_009T01_9000006060_level2

Creation date: 2024-02-12T15:32:53.062366
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/AS1A13_009T01_9000006060cztM0_level2.fits modeM0/AS1A13_009T01_9000006060cztM0_level2_quad_clean.evt
Size (bytes)132,048,000123,212,160
Size125.9 MB 117.5 MB
Events in quadrant A783,196722,556
Events in quadrant B762,826733,808
Events in quadrant C791,098714,970
Events in quadrant D615,174514,116

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03080
B03080
C03080
D03080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0487730
B0337530
C0338060
D0610500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A151396064.002906%
B151384542.999075%
C151393362.219433%
D15136302119.959038%

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 27746 15135 0 0 0.00% 0.00%
B 27746 15136 0 0 0.00% 0.00%
C 27746 15131 0 0 0.00% 0.00%
D 27746 15040 0 0 0.00% 0.00%

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 7 110 666 8.57 204 190 55.5
A 15 236 647 8.23 204 190 55.5
A 0 29 628 7.89 204 190 55.5
B 2 9 757 13.02 201 190 43.5
B 2 8 611 9.67 201 190 43.5
B 3 17 559 8.47 201 190 43.5
C 1 81 630 7.88 209 193 55.4
C 1 80 589 7.14 209 193 55.4
C 3 158 527 6.03 209 193 55.4
D 15 47 469 6.13 176 160 50.4
D 4 12 451 5.77 176 160 50.4
D 7 3 447 5.7 176 160 50.4

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