ASTROSAT CZTI

Data Quality Report

Orbit 20231207_A13_004T13_9000005988_level2

Creation date: 2023-12-09T10:53:03.165351
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_004T13_9000005988cztM0_level2.fits modeM0/AS1A13_004T13_9000005988cztM0_level2_quad_clean.evt
Size (bytes)766,215,360807,209,280
Size730.7 MB 769.8 MB
Events in quadrant A4,603,1524,967,517
Events in quadrant B4,380,9484,836,913
Events in quadrant C4,586,1144,739,643
Events in quadrant D3,786,6384,060,066

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02517230
B02047190
C01822690
D02628350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017340
B017340
C017340
D017340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01210
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8522021822.560432%
B8521934934.098851%
C852179881.159393%
D8522078479.207932%

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 96524 85214 0 0 0.00% 0.00%
B 96524 85166 0 0 0.00% 0.00%
C 96524 85191 0 0 0.00% 0.00%
D 96524 85002 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 7 110 3809 8.84 1200 1121 303.9
A 0 29 3608 8.18 1200 1121 303.9
A 7 109 3541 7.96 1200 1121 303.9
B 2 9 3998 12.72 1158 1103 227.6
B 2 8 3201 9.22 1158 1103 227.6
B 3 17 3178 9.12 1158 1103 227.6
C 3 202 3548 7.73 1214 1129 313.1
C 3 203 3463 7.45 1214 1129 313.1
C 1 81 3421 7.32 1214 1129 313.1
D 10 189 2838 6.12 1091 990 301.9
D 6 67 2750 5.83 1091 990 301.9
D 4 16 2739 5.79 1091 990 301.9

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