ASTROSAT CZTI

Data Quality Report

Orbit 20240915_A13_073T04_9000006430_level2

Creation date: 2024-09-20T11:50:26.709716
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_073T04_9000006430cztM0_level2.fits modeM0/AS1A13_073T04_9000006430cztM0_level2_quad_clean.evt
Size (bytes)97,761,600101,782,080
Size93.2 MB 97.1 MB
Events in quadrant A550,468571,556
Events in quadrant B555,368606,891
Events in quadrant C575,216587,197
Events in quadrant D499,818536,234

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0423750
B0231070
C0228960
D0235720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112603933.490231%
B11260900.799290%
C11261250.222005%
D11261470.417370%

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 14290 11256 0 0 0.00% 0.00%
B 14290 11257 0 0 0.00% 0.00%
C 14291 11257 0 0 0.00% 0.00%
D 14291 11257 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 7 110 461 8.61 143 134 38.0
A 14 95 438 8.0 143 134 38.0
A 15 236 426 7.69 143 134 38.0
B 2 9 513 11.71 146 139 31.9
B 2 8 388 7.8 146 139 31.9
B 5 128 387 7.77 146 139 31.9
C 1 81 443 7.29 151 141 41.4
C 3 202 434 7.07 151 141 41.4
C 1 80 430 6.97 151 141 41.4
D 4 12 383 6.1 142 129 41.6
D 1 31 383 6.1 142 129 41.6
D 8 176 373 5.86 142 129 41.6

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