ASTROSAT CZTI

Data Quality Report

Orbit 47606

Creation date: 2024-07-17T20:25:25.755272
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/AS1A13_071T01_9000006340_47606cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47606cztM0_level2_quad_clean.evt
Size (bytes)540,521,280101,211,840
Size515.5 MB 96.5 MB
Events in quadrant A7,170,789683,745
Events in quadrant B4,857,880666,644
Events in quadrant C2,811,799687,071
Events in quadrant D4,696,823602,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258641
B0184511
C0125711
D0180801

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60803946.480263%
B608166010.853478%
C6081350.575563%
D60814196.890314%

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 7255 6081 128 128 1.76% 2.10%
B 7256 6082 467 467 6.44% 7.68%
C 7256 6082 0 0 0.00% 0.00%
D 7256 6082 346 346 4.77% 5.69%

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 3475114 24093.65 699 685 144.2
A 9 191 629702 4361.96 699 685 144.2
A 13 248 235557 1628.74 699 685 144.2
B 12 48 1490603 11356.47 675 655 131.2
B 5 32 364741 2775.08 675 655 131.2
B 0 200 148449 1126.49 675 655 131.2
C 3 233 138199 857.87 683 686 160.3
C 14 220 7399 41.88 683 686 160.3
C 13 61 4607 24.46 683 686 160.3
D 2 165 881029 5238.1 670 650 168.1
D 12 2 549331 3264.56 670 650 168.1
D 2 249 300539 1784.29 670 650 168.1

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