ASTROSAT CZTI

Data Quality Report

Orbit 04727

Creation date: 2024-06-27T14:46:04.914219
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/AS1G05_227T01_9000000592_04727cztM0_level2.evt modeM0/AS1G05_227T01_9000000592_04727cztM0_level2_quad_clean.evt
Size (bytes)606,663,36085,800,960
Size578.6 MB 81.8 MB
Events in quadrant A3,089,453533,942
Events in quadrant B4,669,365531,789
Events in quadrant C6,296,685533,740
Events in quadrant D3,849,292517,450

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140561
B0183801
C0235491
D0164201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6914831.200463%
B69145728.273069%
C691488112.742262%
D69141992.878218%

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 7529 6915 0 0 0.00% 0.00%
B 7529 6914 406 406 5.39% 5.87%
C 7529 6914 641 641 8.51% 9.27%
D 7529 6914 79 79 1.05% 1.14%

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 8 15 28001 167.33 782 762 162.8
A 0 118 12429 71.67 782 762 162.8
A 0 149 11331 64.93 782 762 162.8
B 10 16 1313221 9057.84 744 727 144.9
B 15 204 228338 1570.8 744 727 144.9
B 14 167 182136 1251.95 744 727 144.9
C 14 48 3515469 21283.29 711 715 165.1
C 13 61 5801 30.8 711 715 165.1
C 8 208 5612 29.65 711 715 165.1
D 13 137 376549 2060.8 749 726 182.4
D 2 136 170781 932.48 749 726 182.4
D 13 235 140972 769.03 749 726 182.4

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