ASTROSAT CZTI

Data Quality Report

Orbit 10318

Creation date: 2024-06-27T15:57:50.290708
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_124T01_9000001486_10318cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10318cztM0_level2_quad_clean.evt
Size (bytes)442,376,64070,781,760
Size421.9 MB 67.5 MB
Events in quadrant A3,181,888438,391
Events in quadrant B3,642,084436,026
Events in quadrant C2,944,801425,328
Events in quadrant D3,204,979408,259

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131733
B0147402
C0127914
D0134482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6236440.705581%
B62361893.030789%
C6235350.561347%
D6236410.657473%

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 7506 6236 2 2 0.03% 0.03%
B 7506 6236 92 92 1.23% 1.48%
C 7506 6236 1 1 0.01% 0.02%
D 7506 6236 7 7 0.09% 0.11%

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 8 15 76021 480.17 782 770 156.7
A 8 5 66153 417.21 782 770 156.7
A 3 1 25416 157.26 782 770 156.7
B 4 239 501469 3454.27 778 763 145.0
B 11 51 55764 379.44 778 763 145.0
B 3 208 25998 174.09 778 763 145.0
C 4 254 7643 39.72 750 754 173.4
C 13 61 5735 28.72 750 754 173.4
C 14 234 5597 27.92 750 754 173.4
D 8 195 214723 1209.43 743 724 176.9
D 2 14 75846 424.56 743 724 176.9
D 2 16 25835 141.92 743 724 176.9

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