ASTROSAT CZTI

Data Quality Report

Orbit 17389

Creation date: 2024-06-27T17:35:55.153293
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/AS1T03_030T01_9000002574_17389cztM0_level2.evt modeM0/AS1T03_030T01_9000002574_17389cztM0_level2_quad_clean.evt
Size (bytes)443,980,80067,504,320
Size423.4 MB 64.4 MB
Events in quadrant A2,594,645427,387
Events in quadrant B2,826,241429,004
Events in quadrant C2,743,164413,841
Events in quadrant D4,901,803382,288

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114531
B0121241
C0115391
D0185571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5593450.804577%
B55931051.877347%
C5592811.448498%
D55925199.281116%

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 5878 5594 0 0 0.00% 0.00%
B 5878 5594 5 5 0.09% 0.09%
C 5877 5593 0 0 0.00% 0.00%
D 5877 5592 332 332 5.65% 5.94%

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 0 226 5930 38.3 674 660 137.6
A 3 137 5031 31.76 674 660 137.6
A 12 194 4901 30.82 674 660 137.6
B 7 220 64735 490.56 671 655 130.6
B 15 35 34838 261.69 671 655 130.6
B 0 197 34293 257.51 671 655 130.6
C 14 238 100038 651.95 647 651 152.4
C 5 218 54869 355.65 647 651 152.4
C 3 233 42087 271.81 647 651 152.4
D 13 232 967941 6317.92 630 611 153.1
D 11 176 713895 4658.67 630 611 153.1
D 1 52 379028 2471.56 630 611 153.1

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