ASTROSAT CZTI

Data Quality Report

Orbit 47299

Creation date: 2024-06-27T23:33:53.403225
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/AS1A13_025T01_9000006312_47299cztM0_level2.fits modeM0/AS1A13_025T01_9000006312_47299cztM0_level2_quad_clean.evt
Size (bytes)561,792,960106,188,480
Size535.8 MB 101.3 MB
Events in quadrant A8,197,144651,371
Events in quadrant B3,598,570757,941
Events in quadrant C3,515,711715,555
Events in quadrant D4,985,877641,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288652
B0150052
C0148852
D0190782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A643489413.894933%
B64341231.911719%
C6434951.476531%
D64343355.206714%

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 7609 6435 459 459 6.03% 7.13%
B 7609 6435 61 61 0.80% 0.95%
C 7609 6435 71 71 0.93% 1.10%
D 7609 6435 308 308 4.05% 4.79%

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 3876783 25724.76 725 710 150.7
A 9 191 1125477 7464.86 725 710 150.7
A 14 235 204946 1355.48 725 710 150.7
B 0 200 184664 1237.9 756 733 148.6
B 5 172 180363 1208.96 756 733 148.6
B 0 198 62266 414.13 756 733 148.6
C 12 2 447486 2548.91 743 748 175.3
C 3 233 105890 599.9 743 748 175.3
C 14 254 47080 264.35 743 748 175.3
D 6 112 1043662 5630.2 736 712 185.2
D 2 249 486316 2621.46 736 712 185.2
D 12 2 218306 1174.65 736 712 185.2

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