ASTROSAT CZTI

Data Quality Report

Orbit 17386

Creation date: 2024-06-27T17:35:50.229569
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/AS1A05_074T02_9000002572_17386cztM0_level2.evt modeM0/AS1A05_074T02_9000002572_17386cztM0_level2_quad_clean.evt
Size (bytes)483,079,68092,880,000
Size460.7 MB 88.6 MB
Events in quadrant A3,108,289605,214
Events in quadrant B3,708,411606,277
Events in quadrant C3,127,016578,835
Events in quadrant D4,234,430558,418

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137352
B0153932
C0137452
D0170722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6657210.315457%
B66571752.628812%
C6657530.796154%
D66572193.289770%

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 7607 6658 0 0 0.00% 0.00%
B 7607 6658 84 84 1.10% 1.26%
C 7607 6658 1 1 0.01% 0.02%
D 7607 6658 189 189 2.48% 2.84%

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 7165 38.66 808 792 164.8
A 12 194 6049 31.89 808 792 164.8
A 3 137 5761 30.14 808 792 164.8
B 4 216 324989 2095.34 806 787 154.7
B 0 197 72889 466.0 806 787 154.7
B 15 35 52525 334.39 806 787 154.7
C 14 238 119487 662.01 764 767 179.3
C 3 233 17714 94.5 764 767 179.3
C 13 61 5606 26.98 764 767 179.3
D 11 176 442723 2383.75 763 741 185.4
D 13 189 311305 1674.97 763 741 185.4
D 1 52 200938 1079.73 763 741 185.4

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