ASTROSAT CZTI

Data Quality Report

Orbit 40183

Creation date: 2024-06-27T22:13:12.089037
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_032T04_9000005528_40183cztM0_level2.fits modeM0/AS1A12_032T04_9000005528_40183cztM0_level2_quad_clean.evt
Size (bytes)385,174,08092,096,640
Size367.3 MB 87.8 MB
Events in quadrant A3,042,764634,891
Events in quadrant B3,478,829633,106
Events in quadrant C4,190,356591,678
Events in quadrant D3,136,373559,669

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123133
B0139572
C0158362
D0129602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5267571.082210%
B52671963.721283%
C52672825.354092%
D52671452.752990%

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 7119 5268 25 25 0.35% 0.47%
B 7119 5268 111 111 1.56% 2.11%
C 7119 5268 291 291 4.09% 5.52%
D 7119 5268 152 152 2.14% 2.89%

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 492719 4080.55 596 587 120.6
A 13 248 161450 1333.81 596 587 120.6
A 2 79 70040 575.88 596 587 120.6
B 0 229 670270 5995.86 591 577 111.7
B 5 172 132933 1185.0 591 577 111.7
B 5 255 117213 1044.26 591 577 111.7
C 9 187 1663431 12497.48 574 579 133.1
C 15 214 219439 1644.88 574 579 133.1
C 14 254 31179 229.98 574 579 133.1
D 12 227 587492 4166.88 575 560 140.9
D 13 249 132857 939.23 575 560 140.9
D 12 218 74873 527.58 575 560 140.9

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