ASTROSAT CZTI

Data Quality Report

Orbit 16315

Creation date: 2024-06-27T17:20:53.773881
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/AS1A05_034T01_9000002404_16315cztM0_level2.evt modeM0/AS1A05_034T01_9000002404_16315cztM0_level2_quad_clean.evt
Size (bytes)258,995,52049,092,480
Size247.0 MB 46.8 MB
Events in quadrant A1,808,203305,293
Events in quadrant B1,862,353313,200
Events in quadrant C1,832,067308,563
Events in quadrant D2,092,798302,159

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075171
B076221
C075101
D085101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3634300.825537%
B3634411.128233%
C3634451.238305%
D3634501.375894%

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 4820 3636 0 0 0.00% 0.00%
B 4820 3636 0 0 0.00% 0.00%
C 4820 3636 0 0 0.00% 0.00%
D 4820 3636 21 21 0.44% 0.58%

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 15 174 61954 666.3 454 446 92.3
A 0 226 4059 39.14 454 446 92.3
A 12 194 3287 30.78 454 446 92.3
B 4 216 28866 327.5 452 442 86.8
B 0 189 22514 254.31 452 442 86.8
B 0 198 13880 154.83 452 442 86.8
C 14 238 69004 677.7 436 441 101.2
C 3 233 58486 573.73 436 441 101.2
C 13 61 3152 26.8 436 441 101.2
D 1 52 320532 2956.3 444 432 108.3
D 10 70 33962 309.67 444 432 108.3
D 12 110 24848 225.49 444 432 108.3

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