ASTROSAT CZTI

Data Quality Report

Orbit 32819

Creation date: 2024-06-27T20:42:23.100680
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/AS1A11_044T01_9000004732_32819cztM0_level2.evt modeM0/AS1A11_044T01_9000004732_32819cztM0_level2_quad_clean.evt
Size (bytes)553,006,080103,368,960
Size527.4 MB 98.6 MB
Events in quadrant A2,729,520696,295
Events in quadrant B3,317,043701,845
Events in quadrant C3,033,486716,337
Events in quadrant D7,293,485628,699

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116573
B0133012
C0125322
D0256112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5528130.235166%
B55281482.677279%
C5528571.031114%
D552883315.068741%

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 7080 5529 4 4 0.06% 0.07%
B 7080 5529 95 95 1.34% 1.72%
C 7080 5529 41 41 0.58% 0.74%
D 7080 5529 770 770 10.88% 13.93%

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 14 238 86383 673.43 635 622 127.3
A 15 17 80762 629.29 635 622 127.3
A 9 143 64025 497.87 635 622 127.3
B 5 172 374405 3124.6 633 617 119.6
B 0 229 219296 1828.0 633 617 119.6
B 0 219 93688 778.01 633 617 119.6
C 0 10 342387 2385.27 622 626 143.3
C 3 233 89217 618.31 622 626 143.3
C 14 67 68927 476.7 622 626 143.3
D 7 80 1503054 10304.82 593 580 145.8
D 8 195 1105872 7580.72 593 580 145.8
D 10 203 704088 4825.06 593 580 145.8

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