ASTROSAT CZTI

Data Quality Report

Orbit 09052

Creation date: 2024-06-27T15:40:38.398278
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_046T01_9000001260_09052cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09052cztM0_level2_quad_clean.evt
Size (bytes)345,893,76066,464,640
Size329.9 MB 63.4 MB
Events in quadrant A3,049,721418,416
Events in quadrant B2,394,779424,983
Events in quadrant C2,214,268414,957
Events in quadrant D2,475,960404,089

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014850
B014854
C014852
D014836

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B041
C041
D041

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179145593
B0149464553
C0146244454
D0157824931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48991242.531129%
B5027250.497315%
C501690.179426%
D4953511.029679%

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 7644 5779 24 24 0.31% 0.42%
B 7644 5880 1 1 0.01% 0.02%
C 7644 5858 2 2 0.03% 0.03%
D 7644 5794 36 36 0.47% 0.62%

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 5 739264 6351.74 565 553 116.3
A 15 174 40272 341.52 565 553 116.3
A 5 16 39184 332.17 565 553 116.3
B 0 198 30908 268.95 583 569 112.8
B 6 51 15847 135.44 583 569 112.8
B 0 214 14749 125.7 583 569 112.8
C 14 234 13210 97.07 560 561 130.3
C 8 128 8991 64.69 560 561 130.3
C 8 112 4438 29.75 560 561 130.3
D 2 14 218455 1507.58 552 535 144.5
D 1 52 56153 384.77 552 535 144.5
D 6 225 45045 307.92 552 535 144.5

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