ASTROSAT CZTI

Data Quality Report

Orbit 12073

Creation date: 2024-06-27T16:21:54.560577
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/AS1A04_130T01_9000001792_12073cztM0_level2.evt modeM0/AS1A04_130T01_9000001792_12073cztM0_level2_quad_clean.evt
Size (bytes)327,847,68050,840,640
Size312.7 MB 48.5 MB
Events in quadrant A2,292,947305,683
Events in quadrant B2,714,757304,269
Events in quadrant C2,208,090308,226
Events in quadrant D2,398,967297,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098692
B0110151
C096441
D0100831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4606641.389492%
B46061242.692141%
C4606250.542770%
D4606521.128962%

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 5697 4607 9 9 0.16% 0.20%
B 5697 4608 44 44 0.77% 0.95%
C 5697 4608 0 0 0.00% 0.00%
D 5697 4607 14 14 0.25% 0.30%

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 1 162 52078 445.76 563 550 115.6
A 1 178 18135 152.13 563 550 115.6
A 1 161 16513 138.09 563 550 115.6
B 4 239 381419 3491.32 563 549 109.1
B 15 204 57668 523.59 563 549 109.1
B 11 51 30657 275.99 563 549 109.1
C 8 208 29978 224.43 555 557 131.1
C 0 207 11870 86.3 555 557 131.1
C 13 61 4097 27.0 555 557 131.1
D 8 195 114251 849.69 550 535 133.8
D 1 52 88334 656.04 550 535 133.8
D 13 249 52027 384.75 550 535 133.8

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