ASTROSAT CZTI

Data Quality Report

Orbit 43417

Creation date: 2024-06-27T22:51:44.740061
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_018T01_9000005874_43417cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43417cztM0_level2_quad_clean.evt
Size (bytes)336,836,16086,618,880
Size321.2 MB 82.6 MB
Events in quadrant A2,903,466590,938
Events in quadrant B2,482,796612,776
Events in quadrant C2,403,874585,508
Events in quadrant D4,275,670471,566

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117642
B0109753
C0104532
D0163842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0370
C0370
D0370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5167410.793497%
B5166250.483933%
C516640.077429%
D516665512.679055%

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 7290 5168 26 26 0.36% 0.50%
B 7289 5167 13 13 0.18% 0.25%
C 7289 5167 0 0 0.00% 0.00%
D 7289 5167 630 630 8.64% 12.19%

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 576167 5074.27 554 542 113.4
A 15 237 162842 1430.71 554 542 113.4
A 13 6 15576 132.53 554 542 113.4
B 0 190 81009 757.02 559 544 106.3
B 0 189 61884 577.09 559 544 106.3
B 5 255 60218 561.42 559 544 106.3
C 15 214 214069 1685.3 546 550 126.7
C 3 233 54428 425.26 546 550 126.7
C 15 159 3964 26.95 546 550 126.7
D 1 52 1783462 15048.34 489 474 118.5
D 2 16 160283 1348.78 489 474 118.5
D 1 47 129192 1086.37 489 474 118.5

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