ASTROSAT CZTI

Data Quality Report

Orbit 11067

Creation date: 2024-06-27T16:07:50.029303
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/AS1G08_075T01_9000001616_11067cztM0_level2.evt modeM0/AS1G08_075T01_9000001616_11067cztM0_level2_quad_clean.evt
Size (bytes)242,092,80055,140,480
Size230.9 MB 52.6 MB
Events in quadrant A1,994,857369,984
Events in quadrant B1,939,975367,597
Events in quadrant C1,397,936369,067
Events in quadrant D1,796,360351,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078032
B076531
C060141
D072331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2957341.149814%
B29571113.753805%
C295730.101454%
D2957762.570172%

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 3877 2958 11 11 0.28% 0.37%
B 3877 2958 50 50 1.29% 1.69%
C 3877 2958 0 0 0.00% 0.00%
D 3877 2958 60 60 1.55% 2.03%

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 15 174 470908 6093.7 370 362 77.2
A 8 15 88535 1141.87 370 362 77.2
A 14 238 7819 96.57 370 362 77.2
B 4 239 443552 6141.59 364 355 72.2
B 15 204 32826 449.97 364 355 72.2
B 0 214 16633 225.57 364 355 72.2
C 13 61 2620 26.88 357 358 84.1
C 8 222 1779 16.89 357 358 84.1
C 14 234 1489 13.44 357 358 84.1
D 10 253 252147 2869.51 356 346 87.8
D 13 249 53420 604.83 356 346 87.8
D 1 52 46978 531.42 356 346 87.8

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