ASTROSAT CZTI

Data Quality Report

Orbit 20240507_C03_005T02_9000006230_level2

Creation date: 2024-05-09T09:46:53.813603
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/AS1C03_005T02_9000006230cztM0_level2.fits modeM0/AS1C03_005T02_9000006230cztM0_level2_quad_clean.evt
Size (bytes)519,978,240736,320,960
Size495.9 MB 702.2 MB
Events in quadrant A3,063,2104,842,919
Events in quadrant B3,036,7745,007,077
Events in quadrant C2,945,0844,286,378
Events in quadrant D2,586,5784,055,987

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0930
B0930
C0930
D0930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012160
B012160
C012160
D012160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02010980
B01279260
C01789250
D01976070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5991319453.246374%
B599137521.255153%
C59911725512.109629%
D5991254479.091668%

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 69168 59905 0 0 0.00% 0.00%
B 69168 59902 0 0 0.00% 0.00%
C 69168 59851 0 0 0.00% 0.00%
D 69167 59854 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 2540 8.71 800 749 205.7
A 14 95 2400 8.03 800 749 205.7
A 7 109 2298 7.53 800 749 205.7
B 2 9 2790 12.63 805 770 159.9
B 2 8 2242 9.21 805 770 159.9
B 3 17 2124 8.47 805 770 159.9
C 1 81 2316 7.96 778 726 199.8
C 3 202 2233 7.54 778 726 199.8
C 1 80 2218 7.47 778 726 199.8
D 10 189 1955 6.22 742 674 206.0
D 6 67 1905 5.98 742 674 206.0
D 10 113 1898 5.94 742 674 206.0

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