ASTROSAT CZTI

Data Quality Report

Orbit 43393

Creation date: 2024-06-27T22:51:28.015171
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/AS1A12_018T01_9000005874_43393cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43393cztM0_level2_quad_clean.evt
Size (bytes)353,949,12096,508,800
Size337.6 MB 92.0 MB
Events in quadrant A3,655,063648,364
Events in quadrant B2,876,273665,802
Events in quadrant C2,957,468619,602
Events in quadrant D3,144,484568,006

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143152
B0127082
C0126312
D0138562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60181232.043868%
B6018380.631439%
C6018110.182785%
D60181031.711532%

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 7301 6019 96 96 1.31% 1.59%
B 7301 6019 21 21 0.29% 0.35%
C 7301 6019 4 4 0.05% 0.07%
D 7301 6019 96 96 1.31% 1.59%

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 671278 5024.5 643 627 133.5
A 15 237 338125 2528.53 643 627 133.5
A 13 248 109509 815.74 643 627 133.5
B 0 189 175701 1416.6 641 623 123.6
B 5 255 96542 776.11 641 623 123.6
B 0 245 32555 258.37 641 623 123.6
C 15 214 254290 1745.25 623 626 145.3
C 15 159 164955 1130.61 623 626 145.3
C 3 233 89863 613.97 623 626 145.3
D 13 249 225684 1487.97 622 602 151.3
D 12 218 210922 1390.38 622 602 151.3
D 12 6 177629 1170.29 622 602 151.3

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