ASTROSAT CZTI

Data Quality Report

Orbit 48090

Creation date: 2024-08-19T12:41:12.601967
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/AS1A13_071T07_9000006398_48090cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48090cztM0_level2_quad_clean.evt
Size (bytes)446,736,96085,962,240
Size426.0 MB 82.0 MB
Events in quadrant A6,911,177723,303
Events in quadrant B1,196,651109
Events in quadrant C3,133,857731,421
Events in quadrant D4,733,324651,698

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256720
B074530
C0148110
D0191880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71242213.102190%
B7125712499.985965%
C7125580.814035%
D71252683.761404%

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 7124 7124 4 4 0.06% 0.06%
B 7124 7124 0 0 0.00% 0.00%
C 7125 7125 10 10 0.14% 0.14%
D 7125 7125 189 189 2.65% 2.65%

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 3823688 23469.74 771 750 162.9
A 14 248 71669 435.38 771 750 162.9
A 7 3 33407 200.48 771 750 162.9
B 2 177 986376 82094.86 48 47 12.0
B 4 21 5824 480.84 48 47 12.0
B 0 200 4640 382.29 48 47 12.0
C 14 254 84808 463.06 771 771 181.5
C 12 250 26432 141.4 771 771 181.5
C 14 67 8521 42.7 771 771 181.5
D 2 165 1534458 8032.54 759 733 190.9
D 11 224 145710 759.28 759 733 190.9
D 11 192 58726 303.73 759 733 190.9

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