ASTROSAT CZTI

Data Quality Report

Orbit 47253

Creation date: 2024-06-27T23:33:27.206515
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/AS1C09_005T01_9000006304_47253cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47253cztM0_level2_quad_clean.evt
Size (bytes)542,998,080101,018,880
Size517.8 MB 96.3 MB
Events in quadrant A7,683,559658,576
Events in quadrant B3,214,057708,227
Events in quadrant C2,761,884679,187
Events in quadrant D5,941,998563,382

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272551
B0139311
C0131077
D0220951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64315608.707821%
B6432630.979478%
C6431220.342093%
D643183512.983984%

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 7411 6432 371 371 5.01% 5.77%
B 7412 6433 20 20 0.27% 0.31%
C 7411 6432 12 12 0.16% 0.19%
D 7411 6432 720 720 9.72% 11.19%

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 3507281 24312.31 690 675 144.2
A 9 191 1393907 9659.68 690 675 144.2
A 7 3 67703 464.72 690 675 144.2
B 0 200 225629 1627.5 703 680 138.2
B 0 183 66888 479.01 703 680 138.2
B 0 197 40637 289.09 703 680 138.2
C 14 254 61044 367.68 691 693 164.1
C 13 61 4652 24.12 691 693 164.1
C 8 111 3597 17.69 691 693 164.1
D 12 1 3076037 18990.98 644 624 161.9
D 12 233 126424 776.83 644 624 161.9
D 5 171 102746 630.61 644 624 161.9

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