ASTROSAT CZTI

Data Quality Report

Orbit 13405

Creation date: 2024-06-27T16:40:19.659963
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/AS1A04_103T01_9000001988_13405cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13405cztM0_level2_quad_clean.evt
Size (bytes)480,035,520102,000,960
Size457.8 MB 97.3 MB
Events in quadrant A3,111,201667,247
Events in quadrant B3,482,757686,307
Events in quadrant C3,127,594660,887
Events in quadrant D4,369,968616,414

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135983
B0146282
C0136002
D0175382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6571600.913103%
B65711572.389286%
C6571260.395678%
D65711402.130574%

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 7637 6572 0 0 0.00% 0.00%
B 7636 6571 43 43 0.56% 0.65%
C 7637 6572 4 4 0.05% 0.06%
D 7637 6572 115 115 1.51% 1.75%

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 7234 39.3 806 789 164.0
A 12 194 6078 32.25 806 789 164.0
A 1 162 5240 27.14 806 789 164.0
B 3 64 124855 809.27 809 789 153.3
B 10 244 114749 743.35 809 789 153.3
B 4 142 52578 337.81 809 789 153.3
C 3 233 53729 295.99 780 787 178.9
C 14 220 31465 171.51 780 787 178.9
C 13 61 5624 27.04 780 787 178.9
D 8 195 799834 4355.57 762 740 183.5
D 1 52 378561 2059.36 762 740 183.5
D 2 136 223179 1212.43 762 740 183.5

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