ASTROSAT CZTI

Data Quality Report

Orbit 43523

Creation date: 2024-06-27T22:52:46.693847
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/AS1A12_018T01_9000005874_43523cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43523cztM0_level2_quad_clean.evt
Size (bytes)1,221,497,28068,261,760
Size1.1 GB 65.1 MB
Events in quadrant A15,443,966504,504
Events in quadrant B9,512,489698,992
Events in quadrant C17,450,711358,397
Events in quadrant D2,258,1691,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0506800
B0332130
C0566530
D0114401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7078584382.551568%
B7078188326.603560%
C7079683096.482554%
D70787078100.000000%

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 7077 7077 4654 4654 65.76% 65.76%
B 7078 7078 1314 1314 18.56% 18.56%
C 7078 7078 6219 6219 87.86% 87.86%
D 7077 7077 0 0 0.00% 0.00%

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 0 228 8399344 76676.83 525 515 109.5
A 0 229 2039599 18615.75 525 515 109.5
A 0 226 648478 5915.56 525 515 109.5
B 3 42 3392395 24752.93 699 677 137.0
B 3 25 1804056 13161.15 699 677 137.0
B 4 36 633188 4616.1 699 677 137.0
C 15 158 3197140 36179.28 373 375 88.4
C 15 174 2748679 31103.83 373 375 88.4
C 15 142 2711809 30686.56 373 375 88.4
D 4 201 433957 92120.79 4 3 4.7
D 4 216 373796 79349.67 4 3 4.7
D 4 214 322345 68427.53 4 3 4.7

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