ASTROSAT CZTI

Data Quality Report

Orbit 09320

Creation date: 2024-06-27T15:44:27.309074
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/AS1G07_009T01_9000001318_09320cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09320cztM0_level2_quad_clean.evt
Size (bytes)291,752,64053,997,120
Size278.2 MB 51.5 MB
Events in quadrant A2,336,324351,937
Events in quadrant B1,934,140360,652
Events in quadrant C1,722,726354,911
Events in quadrant D2,600,466316,446

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093392
B080725
C074983
D0101721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3538842.374223%
B3537812.290076%
C3537320.904722%
D35383529.949124%

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 4852 3538 11 11 0.23% 0.31%
B 4853 3538 28 28 0.58% 0.79%
C 4852 3538 0 0 0.00% 0.00%
D 4852 3538 259 259 5.34% 7.32%

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 512872 5573.3 446 438 91.9
A 1 162 68012 734.94 446 438 91.9
A 1 178 15898 168.15 446 438 91.9
B 10 245 166781 1911.74 447 437 87.0
B 12 111 9494 104.09 447 437 87.0
B 4 80 8622 94.07 447 437 87.0
C 9 68 12742 120.18 438 440 102.4
C 13 61 3279 27.73 438 440 102.4
C 8 222 1797 13.25 438 440 102.4
D 12 227 924047 9321.42 410 400 99.1
D 1 52 53493 535.81 410 400 99.1
D 12 233 36307 362.37 410 400 99.1

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