ASTROSAT CZTI

Data Quality Report

Orbit 11086

Creation date: 2024-06-27T16:08:06.424976
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/AS1G08_071T02_9000001620_11086cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11086cztM0_level2_quad_clean.evt
Size (bytes)561,401,28074,309,760
Size535.4 MB 70.9 MB
Events in quadrant A3,167,063469,765
Events in quadrant B4,231,163477,890
Events in quadrant C2,874,580467,218
Events in quadrant D6,319,192412,534

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130543
B0164132
C0123692
D0228222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6055150.247729%
B60552484.095789%
C605550.082576%
D6055103717.126342%

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 7405 6056 0 0 0.00% 0.00%
B 7405 6056 155 155 2.09% 2.56%
C 7405 6056 0 0 0.00% 0.00%
D 7404 6055 916 916 12.37% 15.13%

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 8 15 163105 1048.96 762 748 154.8
A 14 238 31306 197.43 762 748 154.8
A 15 174 26758 168.05 762 748 154.8
B 4 239 908358 6359.31 763 746 142.7
B 10 16 210362 1468.7 763 746 142.7
B 0 214 50176 346.34 763 746 142.7
C 13 61 5545 28.13 736 743 170.7
C 8 222 2590 10.82 736 743 170.7
C 3 202 1771 6.02 736 743 170.7
D 10 253 2604980 16330.8 663 646 159.5
D 1 52 926002 5802.56 663 646 159.5
D 4 95 151681 947.08 663 646 159.5

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