ASTROSAT CZTI

Data Quality Report

Orbit 47246

Creation date: 2024-06-27T23:33:21.580094
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/AS1C09_005T01_9000006304_47246cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47246cztM0_level2_quad_clean.evt
Size (bytes)629,484,480108,665,280
Size600.3 MB 103.6 MB
Events in quadrant A7,609,320742,135
Events in quadrant B3,670,711779,301
Events in quadrant C3,137,649757,236
Events in quadrant D8,334,629517,675

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275982
B0157511
C0146321
D0297281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70823264.603219%
B70831562.202457%
C7083771.087110%
D7083207729.323733%

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 7657 7084 26 26 0.34% 0.37%
B 7658 7085 33 33 0.43% 0.47%
C 7658 7085 10 10 0.13% 0.14%
D 7658 7085 1738 1738 22.70% 24.53%

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 3631461 22636.98 770 751 160.4
A 15 235 496809 3092.85 770 751 160.4
A 9 191 495272 3083.27 770 751 160.4
B 0 200 283083 1891.86 774 749 149.2
B 0 183 149625 997.58 774 749 149.2
B 10 3 73414 486.91 774 749 149.2
C 14 254 62785 342.25 776 776 181.2
C 3 233 18965 100.39 776 776 181.2
C 10 9 14890 77.9 776 776 181.2
D 12 1 5560144 33386.74 660 636 166.5
D 7 96 64246 382.0 660 636 166.5
D 2 249 52885 313.77 660 636 166.5

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