ASTROSAT CZTI

Data Quality Report

Orbit 47112

Creation date: 2024-06-27T23:31:52.295579
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_003T01_9000006298_47112cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47112cztM0_level2_quad_clean.evt
Size (bytes)446,572,80099,207,360
Size425.9 MB 94.6 MB
Events in quadrant A6,231,768656,922
Events in quadrant B3,044,189692,584
Events in quadrant C2,744,585654,339
Events in quadrant D4,050,204586,642

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226393
B0129981
C0125661
D0163271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59213886.552947%
B59221472.482270%
C5922510.861196%
D59223535.960824%

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 7131 5922 240 240 3.37% 4.05%
B 7132 5923 65 65 0.91% 1.10%
C 7132 5923 48 48 0.67% 0.81%
D 7132 5923 271 271 3.80% 4.58%

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 3168350 23533.19 653 640 134.6
A 13 248 458826 3403.9 653 640 134.6
A 0 247 60316 443.34 653 640 134.6
B 5 32 139496 1083.26 661 640 128.2
B 4 21 82056 635.15 661 640 128.2
B 0 190 73484 568.28 661 640 128.2
C 14 254 193156 1279.07 642 643 150.5
C 11 16 43676 285.92 642 643 150.5
C 13 61 4452 25.31 642 643 150.5
D 2 249 1228485 7792.21 634 612 157.6
D 1 47 218765 1384.42 634 612 157.6
D 2 120 60076 377.36 634 612 157.6

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