ASTROSAT CZTI

Data Quality Report

Orbit 14020

Creation date: 2024-06-27T16:49:14.175694
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/AS1G08_064T01_9000002070_14020cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14020cztM0_level2_quad_clean.evt
Size (bytes)484,706,88080,801,280
Size462.3 MB 77.1 MB
Events in quadrant A3,387,789494,237
Events in quadrant B3,568,355496,397
Events in quadrant C3,392,741493,747
Events in quadrant D3,855,093474,978

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144683
B0149822
C0144392
D0157352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70031432.041982%
B70031562.227617%
C7003981.399400%
D70031351.927745%

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 8669 7006 0 0 0.00% 0.00%
B 8669 7006 17 17 0.20% 0.24%
C 8669 7006 0 0 0.00% 0.00%
D 8669 7006 13 13 0.15% 0.19%

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 12 189 37196 205.33 862 839 177.1
A 1 162 16591 88.96 862 839 177.1
A 8 15 11642 61.01 862 839 177.1
B 10 16 91681 551.83 855 833 164.6
B 0 189 52928 316.44 855 833 164.6
B 4 80 26626 156.67 855 833 164.6
C 3 233 144101 740.9 832 835 193.4
C 13 61 6197 27.73 832 835 193.4
C 12 4 2542 8.83 832 835 193.4
D 1 52 221336 999.56 827 805 220.6
D 8 195 209010 943.69 827 805 220.6
D 13 189 128454 578.57 827 805 220.6

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