ASTROSAT CZTI

Data Quality Report

Orbit 47382

Creation date: 2024-07-02T19:41:18.026658
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_093T25_9000006324_47382cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47382cztM0_level2_quad_clean.evt
Size (bytes)1,838,623,680277,902,720
Size1.7 GB 265.0 MB
Events in quadrant A18,832,5631,997,306
Events in quadrant B9,830,5132,049,821
Events in quadrant C8,994,2041,976,070
Events in quadrant D28,916,3311,064,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0702263
B0421713
C0406413
D0990393

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03940
B03940
C03940
D03940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A192408214.267152%
B192416793.528923%
C192413601.871005%
D19240844843.908524%

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 20490 19240 17 17 0.08% 0.09%
B 20491 19241 145 145 0.71% 0.75%
C 20491 19244 71 71 0.35% 0.37%
D 20490 19241 7496 7496 36.58% 38.96%

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 10 83 9705012 21210.49 2191 2140 457.5
A 15 235 392764 853.9 2191 2140 457.5
A 9 191 227812 493.32 2191 2140 457.5
B 5 32 594287 1364.74 2182 2113 433.9
B 5 255 197219 449.65 2182 2113 433.9
B 0 190 86544 194.58 2182 2113 433.9
C 0 207 331034 641.98 2159 2163 512.3
C 1 3 142273 273.5 2159 2163 512.3
C 3 233 53383 99.98 2159 2163 512.3
D 12 2 19900492 49137.79 1589 1535 405.0
D 12 33 1617104 3989.43 1589 1535 405.0
D 2 249 425409 1046.7 1589 1535 405.0

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