ASTROSAT CZTI

Data Quality Report

Orbit 47709

Creation date: 2024-07-24T19:19:41.072238
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/AS1T05_213T01_9000006344_47709cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47709cztM0_level2_quad_clean.evt
Size (bytes)547,326,720103,475,520
Size522.0 MB 98.7 MB
Events in quadrant A6,727,894701,514
Events in quadrant B5,315,655617,389
Events in quadrant C2,985,623711,628
Events in quadrant D4,725,858648,123

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251441
B0203491
C0137451
D0185691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65152533.883346%
B6516109116.743401%
C6516440.675261%
D65161502.302026%

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 7485 6515 23 23 0.31% 0.35%
B 7486 6516 995 995 13.29% 15.27%
C 7486 6517 24 24 0.32% 0.37%
D 7486 6516 103 103 1.38% 1.58%

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 10 83 3764307 25191.35 720 703 149.4
A 9 191 73856 489.64 720 703 149.4
A 13 248 57030 377.02 720 703 149.4
B 0 200 2552762 20213.14 644 625 126.3
B 5 255 82140 645.61 644 625 126.3
B 4 21 77438 608.37 644 625 126.3
C 12 2 225235 1358.62 706 707 165.3
C 14 254 7466 40.9 706 707 165.3
C 13 61 4839 25.0 706 707 165.3
D 2 165 1391751 7887.15 710 686 176.4
D 9 49 166227 938.6 710 686 176.4
D 2 249 118961 670.6 710 686 176.4

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