ASTROSAT CZTI

Data Quality Report

Orbit 32074

Creation date: 2024-06-27T20:36:09.349056
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/AS1A10_109T01_9000004682_32074cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32074cztM0_level2_quad_clean.evt
Size (bytes)685,825,92071,899,200
Size654.1 MB 68.6 MB
Events in quadrant A2,571,672506,718
Events in quadrant B9,172,439407,987
Events in quadrant C3,544,809445,655
Events in quadrant D5,128,580449,589

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109462
B0309292
C0139042
D0188612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5221120.229841%
B5221241946.332120%
C522162712.009194%
D52211903.639150%

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 6411 5222 0 0 0.00% 0.00%
B 6411 5221 1898 1898 29.61% 36.35%
C 6411 5222 146 146 2.28% 2.80%
D 6411 5222 131 131 2.04% 2.51%

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 13 254 9774 68.98 664 652 132.2
A 13 6 8684 60.74 664 652 132.2
A 3 137 6447 43.82 664 652 132.2
B 10 245 5404012 49073.57 587 575 110.1
B 6 159 1307396 11868.44 587 575 110.1
B 0 190 94335 851.52 587 575 110.1
C 0 10 372186 2643.32 601 608 140.6
C 3 233 230348 1634.32 601 608 140.6
C 14 238 205073 1454.52 601 608 140.6
D 8 195 2046433 13595.77 629 615 150.5
D 12 218 318512 2112.63 629 615 150.5
D 12 227 292760 1941.49 629 615 150.5

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