ASTROSAT CZTI

Data Quality Report

Orbit 45758

Creation date: 2024-06-27T23:15:50.073915
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/AS1T05_183T01_9000006124_45758cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45758cztM0_level2_quad_clean.evt
Size (bytes)1,802,672,640286,617,600
Size1.7 GB 273.3 MB
Events in quadrant A17,179,0351,967,942
Events in quadrant B19,799,1621,790,562
Events in quadrant C11,022,5081,960,853
Events in quadrant D17,247,2891,632,902

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0642135
B0720902
C0464652
D0645362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A192224532.356675%
B19223289615.065286%
C192227353.823744%
D19223205410.685117%

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 20663 19225 60 60 0.29% 0.31%
B 20663 19226 1884 1884 9.12% 9.80%
C 20662 19225 600 600 2.90% 3.12%
D 20663 19226 1733 1733 8.39% 9.01%

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 8319740 18658.9 2147 2095 445.8
A 13 248 212596 472.21 2147 2095 445.8
A 14 235 100952 221.76 2147 2095 445.8
B 3 112 6760797 16789.33 2055 1988 402.6
B 12 3 1602233 3975.11 2055 1988 402.6
B 5 172 1274630 3161.33 2055 1988 402.6
C 12 2 1474434 2993.46 2091 2106 491.8
C 14 254 1232205 2500.98 2091 2106 491.8
C 3 233 97603 194.16 2091 2106 491.8
D 1 52 3851668 7447.01 2027 1961 516.9
D 2 249 1561211 3016.27 2027 1961 516.9
D 13 249 1438819 2779.51 2027 1961 516.9

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