ASTROSAT CZTI

Data Quality Report

Orbit 47311

Creation date: 2024-06-28T00:42:42.121172
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_093T12_9000006314_47311cztM0_level2.fits modeM0/AS1A13_093T12_9000006314_47311cztM0_level2_quad_clean.evt
Size (bytes)640,854,72099,792,000
Size611.2 MB 95.2 MB
Events in quadrant A7,046,491687,157
Events in quadrant B3,386,956706,965
Events in quadrant C7,983,225562,514
Events in quadrant D4,797,133605,737

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254691
B0147881
C0281591
D0192281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65722704.108338%
B65721301.978089%
C6573152023.124905%
D65735458.291496%

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 7532 6573 85 85 1.13% 1.29%
B 7532 6573 69 69 0.92% 1.05%
C 7533 6574 1360 1360 18.05% 20.69%
D 7533 6574 396 396 5.26% 6.02%

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 3799406 25839.11 706 689 147.0
A 9 191 322706 2190.38 706 689 147.0
A 15 235 149933 1015.17 706 689 147.0
B 0 190 320793 2282.37 710 689 140.3
B 5 171 93735 663.43 710 689 140.3
B 0 198 48730 342.54 710 689 140.3
C 12 2 5263292 35274.67 639 642 149.2
C 3 233 171787 1147.16 639 642 149.2
C 14 254 53649 355.3 639 642 149.2
D 8 176 886344 5185.18 689 667 170.8
D 12 2 622736 3641.89 689 667 170.8
D 6 112 239652 1399.13 689 667 170.8

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