ASTROSAT CZTI

Data Quality Report

Orbit 23467

Creation date: 2024-06-27T18:55:04.224174
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/AS1C05_002T05_9000003472_23467cztM0_level2.evt modeM0/AS1C05_002T05_9000003472_23467cztM0_level2_quad_clean.evt
Size (bytes)346,078,08069,989,760
Size330.0 MB 66.7 MB
Events in quadrant A2,293,699450,272
Events in quadrant B2,371,441453,332
Events in quadrant C2,349,801438,250
Events in quadrant D3,132,842434,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100160
B0100850
C0100280
D0127100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4890891.820041%
B48901072.188139%
C48901032.106339%
D48901362.781186%

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 4889 4889 0 0 0.00% 0.00%
B 4889 4889 0 0 0.00% 0.00%
C 4889 4889 0 0 0.00% 0.00%
D 4889 4889 50 50 1.02% 1.02%

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 13 254 9398 73.09 592 579 120.7
A 0 226 5172 38.06 592 579 120.7
A 3 137 5105 37.51 592 579 120.7
B 0 219 20897 178.84 587 573 113.6
B 0 229 19675 168.09 587 573 113.6
B 0 190 16997 144.52 587 573 113.6
C 14 238 90173 672.62 567 570 133.2
C 1 16 15019 108.46 567 570 133.2
C 7 247 14095 101.53 567 570 133.2
D 7 238 599143 4270.65 575 558 140.2
D 1 52 175430 1247.64 575 558 140.2
D 14 50 68941 487.88 575 558 140.2

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