ASTROSAT CZTI

Data Quality Report

Orbit 39111

Creation date: 2024-06-27T22:00:32.916321
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_067T01_9000005432_39111cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39111cztM0_level2_quad_clean.evt
Size (bytes)416,450,88096,629,760
Size397.2 MB 92.2 MB
Events in quadrant A3,312,782660,445
Events in quadrant B2,546,634684,771
Events in quadrant C4,021,734639,316
Events in quadrant D5,112,007560,472

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131693
B0110482
C0156442
D0189742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5441270.496232%
B5441210.385958%
C54411061.948171%
D54414107.535380%

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 8995 5443 11 11 0.12% 0.20%
B 8995 5443 11 11 0.12% 0.20%
C 8995 5443 65 65 0.72% 1.19%
D 8995 5443 378 378 4.20% 6.94%

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 418373 3242.26 641 630 128.8
A 15 223 325662 2522.69 641 630 128.8
A 9 143 52441 402.12 641 630 128.8
B 5 172 38159 304.84 638 621 123.1
B 12 111 15196 118.36 638 621 123.1
B 11 111 14194 110.22 638 621 123.1
C 15 208 1291484 8957.38 620 624 144.1
C 15 214 230958 1598.31 620 624 144.1
C 9 187 82699 569.52 620 624 144.1
D 12 235 1145186 7747.88 604 587 147.7
D 2 153 1097298 7423.72 604 587 147.7
D 5 222 267258 1805.12 604 587 147.7

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