ASTROSAT CZTI

Data Quality Report

Orbit 03196

Creation date: 2024-06-27T14:25:47.120773
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_127T01_9000000436_03196cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03196cztM0_level2_quad_clean.evt
Size (bytes)594,512,64084,000,960
Size567.0 MB 80.1 MB
Events in quadrant A2,735,306555,517
Events in quadrant B2,879,658562,273
Events in quadrant C8,551,682475,580
Events in quadrant D3,427,774526,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123922
B0126671
C0295891
D0145541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6060160.264026%
B6060150.247525%
C6060183530.280528%
D60601071.765677%

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 7215 6061 1 1 0.01% 0.02%
B 7215 6060 1 1 0.01% 0.02%
C 7215 6060 1874 1874 25.97% 30.92%
D 7215 6061 99 99 1.37% 1.63%

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 0 118 29129 198.42 700 687 143.3
A 0 226 9866 64.03 700 687 143.3
A 12 194 7492 47.47 700 687 143.3
B 4 80 35206 249.6 717 702 138.2
B 0 231 18825 131.1 717 702 138.2
B 2 249 15285 105.49 717 702 138.2
C 12 206 5652610 38983.51 620 626 145.0
C 1 192 204737 1407.82 620 626 145.0
C 14 223 138684 952.23 620 626 145.0
D 13 223 443834 2714.27 670 652 163.3
D 13 120 149994 914.65 670 652 163.3
D 5 233 100138 609.3 670 652 163.3

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