ASTROSAT CZTI

Data Quality Report

Orbit 04404

Creation date: 2024-06-27T14:41:30.836911
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_230T02_9000000548_04404cztM0_level2.evt modeM0/AS1G05_230T02_9000000548_04404cztM0_level2_quad_clean.evt
Size (bytes)452,304,00073,186,560
Size431.4 MB 69.8 MB
Events in quadrant A2,955,678443,520
Events in quadrant B3,919,521434,621
Events in quadrant C3,048,499437,385
Events in quadrant D3,313,615428,324

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138882
B0163061
C0141181
D0151171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6766570.842448%
B67661892.793379%
C6766480.709430%
D67661081.596216%

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 7121 6767 1 1 0.01% 0.01%
B 7121 6767 97 97 1.36% 1.43%
C 7121 6767 22 22 0.31% 0.33%
D 7121 6767 100 100 1.40% 1.48%

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 50 47489 300.49 754 735 155.6
A 12 194 7808 45.46 754 735 155.6
A 0 226 7570 43.93 754 735 155.6
B 14 167 513722 3510.45 754 735 146.1
B 10 16 410329 2802.92 754 735 146.1
B 0 231 30382 202.88 754 735 146.1
C 9 247 138384 805.37 732 735 170.9
C 9 16 16860 94.35 732 735 170.9
C 14 48 16177 90.35 732 735 170.9
D 2 37 264125 1507.79 730 708 174.7
D 9 35 111926 636.61 730 708 174.7
D 8 112 36905 207.19 730 708 174.7

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