ASTROSAT CZTI

Data Quality Report

Orbit 09234

Creation date: 2024-06-27T15:43:03.591871
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_051T01_9000001288_09234cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09234cztM0_level2_quad_clean.evt
Size (bytes)433,183,68080,910,720
Size413.1 MB 77.2 MB
Events in quadrant A3,482,810510,749
Events in quadrant B3,357,039521,340
Events in quadrant C2,822,620515,489
Events in quadrant D3,054,486489,622

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01266
B01264
C01266
D01264

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014987841
B014636913
C012738501
D013664690

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0212
C0211
D0221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58771151.956781%
B5871691.175268%
C5958110.184626%
D5903290.491276%

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 7545 6159 67 67 0.89% 1.09%
B 7544 6139 23 23 0.30% 0.37%
C 7545 6169 0 0 0.00% 0.00%
D 7545 6162 13 13 0.17% 0.21%

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 15 174 272637 1822.43 733 720 149.2
A 8 5 221266 1478.13 733 720 149.2
A 1 162 92985 618.37 733 720 149.2
B 8 234 200532 1425.17 742 725 140.2
B 0 245 87855 621.48 742 725 140.2
B 0 246 42884 300.71 742 725 140.2
C 13 61 5603 29.24 721 726 166.8
C 14 67 5533 28.82 721 726 166.8
C 8 222 3590 17.17 721 726 166.8
D 2 14 78947 415.34 701 686 188.4
D 11 129 77738 408.92 701 686 188.4
D 7 71 62869 330.01 701 686 188.4

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