ASTROSAT CZTI

Data Quality Report

Orbit 08596

Creation date: 2024-06-27T15:34:45.390287
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/AS1A03_102T01_9000001202_08596cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08596cztM0_level2_quad_clean.evt
Size (bytes)420,364,800109,653,120
Size400.9 MB 104.6 MB
Events in quadrant A2,970,944720,833
Events in quadrant B3,084,995754,341
Events in quadrant C2,826,928741,424
Events in quadrant D3,424,575669,994

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131123
B0134272
C0127552
D0147382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6216290.466538%
B6216290.466538%
C6216140.225225%
D62162804.504505%

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 7471 6217 10 10 0.13% 0.16%
B 7471 6217 4 4 0.05% 0.06%
C 7471 6217 0 0 0.00% 0.00%
D 7471 6217 246 246 3.29% 3.96%

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 5 16 83230 566.19 724 710 145.7
A 13 248 44315 299.18 724 710 145.7
A 15 223 26646 177.95 724 710 145.7
B 0 214 82790 589.55 741 722 139.2
B 4 80 22874 159.13 741 722 139.2
B 5 255 19168 132.51 741 722 139.2
C 14 234 5928 31.24 722 725 166.6
C 13 61 5473 28.51 722 725 166.6
C 8 222 3277 15.32 722 725 166.6
D 10 253 667021 4005.12 687 666 166.4
D 7 71 38639 228.24 687 666 166.4
D 2 14 31888 187.66 687 666 166.4

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