ASTROSAT CZTI

Data Quality Report

Orbit 20230630_A12_099T03_9000005720_level2

Creation date: 2023-07-03T12:52:35.369051
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/AS1A12_099T03_9000005720cztM0_level2.fits modeM0/AS1A12_099T03_9000005720cztM0_level2_quad_clean.evt
Size (bytes)772,223,040818,507,520
Size736.4 MB 780.6 MB
Events in quadrant A4,648,6404,991,945
Events in quadrant B4,638,6425,329,275
Events in quadrant C4,697,2265,118,721
Events in quadrant D3,030,5163,000,230

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02592570
B02160860
C02199230
D04861830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018880
B018880
C018880
D018880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03220
B03230
C03230
D03230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9264171697.738474%
B9264126992.913397%
C9256531423.394372%
D925793873441.838862%

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 128550 91776 0 0 0.00% 0.00%
B 128550 92605 0 0 0.00% 0.00%
C 128545 92359 0 0 0.00% 0.00%
D 128550 91138 0 0 0.00% 0.00%

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 29 3852 8.96 1212 1133 303.4
A 7 110 3844 8.93 1212 1133 303.4
A 9 19 3659 8.33 1212 1133 303.4
B 2 9 3980 11.67 1224 1165 241.2
B 3 80 3408 9.3 1224 1165 241.2
B 2 8 3196 8.42 1224 1165 241.2
C 1 81 3916 8.71 1240 1162 316.4
C 1 80 3687 7.98 1240 1162 316.4
C 3 203 3619 7.77 1240 1162 316.4
D 7 3 2237 6.2 867 790 233.1
D 6 62 2140 5.79 867 790 233.1
D 10 189 2135 5.77 867 790 233.1

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