ASTROSAT CZTI

Data Quality Report

Orbit 07762

Creation date: 2024-06-27T15:23:41.175005
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/AS1A02_132T01_9000001068_07762cztM0_level2.evt modeM0/AS1A02_132T01_9000001068_07762cztM0_level2_quad_clean.evt
Size (bytes)521,974,08085,138,560
Size497.8 MB 81.2 MB
Events in quadrant A3,680,037507,766
Events in quadrant B3,911,473517,728
Events in quadrant C3,669,769521,921
Events in quadrant D4,022,332493,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162412
B0165691
C0163021
D0173631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77093444.462317%
B77093524.566092%
C77092823.658062%
D77093234.189908%

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 7724 7709 0 0 0.00% 0.00%
B 7724 7709 7 7 0.09% 0.09%
C 7724 7709 0 0 0.00% 0.00%
D 7724 7709 11 11 0.14% 0.14%

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 0 226 8870 39.79 954 927 199.6
A 12 194 8574 38.31 954 927 199.6
A 13 248 4147 16.13 954 927 199.6
B 4 173 68925 365.18 956 932 186.2
B 0 214 33092 172.73 956 932 186.2
B 15 204 18781 95.86 956 932 186.2
C 13 61 6992 27.31 937 942 221.5
C 8 128 5017 18.39 937 942 221.5
C 8 222 4681 16.87 937 942 221.5
D 1 52 238346 1017.81 938 909 233.3
D 2 152 97651 414.7 938 909 233.3
D 2 14 30286 125.93 938 909 233.3

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