ASTROSAT CZTI

Data Quality Report

Orbit 48016

Creation date: 2024-08-14T12:49:17.030144
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/AS1T05_218T01_9000006386_48016cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48016cztM0_level2_quad_clean.evt
Size (bytes)506,160,000120,591,360
Size482.7 MB 115.0 MB
Events in quadrant A7,372,110799,843
Events in quadrant B3,612,744823,047
Events in quadrant C3,709,351782,423
Events in quadrant D3,452,106716,821

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0274072
B0159320
C0166870
D0161590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7607771.012226%
B7607220.289207%
C7607690.907059%
D7607340.446957%

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 7607 7607 7 7 0.09% 0.09%
B 7607 7607 1 1 0.01% 0.01%
C 7607 7607 49 49 0.64% 0.64%
D 7607 7607 20 20 0.26% 0.26%

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 10 83 4030229 22864.89 831 810 176.2
A 0 31 75875 425.96 831 810 176.2
A 7 3 32596 180.37 831 810 176.2
B 4 21 229317 1379.85 833 804 165.6
B 0 198 31424 184.9 833 804 165.6
B 12 111 21436 124.58 833 804 165.6
C 12 2 240913 1236.25 818 821 194.2
C 14 254 189060 969.25 818 821 194.2
C 14 67 25810 128.67 818 821 194.2
D 11 224 108023 528.56 815 788 202.9
D 14 34 55966 271.97 815 788 202.9
D 2 234 37045 178.71 815 788 202.9

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