ASTROSAT CZTI

Data Quality Report

Orbit 09779

Creation date: 2024-06-27T15:50:32.830168
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/AS1A03_080T01_9000001392_09779cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09779cztM0_level2_quad_clean.evt
Size (bytes)504,008,64090,316,800
Size480.7 MB 86.1 MB
Events in quadrant A3,044,977578,895
Events in quadrant B3,266,221578,609
Events in quadrant C2,919,669576,071
Events in quadrant D5,581,556538,117

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013839129
B014357188
C013608160
D021676638

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362
B01362
C01360
D01362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6672350.524580%
B6651540.811908%
C6656110.165264%
D660669510.520739%

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 7697 6726 0 0 0.00% 0.00%
B 7697 6717 16 16 0.21% 0.24%
C 7697 6724 0 0 0.00% 0.00%
D 7697 6693 733 733 9.52% 10.95%

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 14 111 33805 208.49 775 758 158.5
A 13 248 8644 49.75 775 758 158.5
A 13 251 8545 49.13 775 758 158.5
B 4 239 68356 449.65 777 759 150.3
B 4 81 67368 443.08 777 759 150.3
B 0 229 58918 386.87 777 759 150.3
C 13 61 5638 28.05 746 749 174.3
C 8 222 3260 14.41 746 749 174.3
C 11 7 3132 13.67 746 749 174.3
D 1 52 2140430 11442.49 717 700 187.0
D 2 152 389356 2078.39 717 700 187.0
D 8 195 74004 392.0 717 700 187.0

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