ASTROSAT CZTI

Data Quality Report

Orbit 46733

Creation date: 2024-06-27T23:26:57.438154
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/AS1A13_092T09_9000006258_46733cztM0_level2.fits modeM0/AS1A13_092T09_9000006258_46733cztM0_level2_quad_clean.evt
Size (bytes)471,856,32095,607,360
Size450.0 MB 91.2 MB
Events in quadrant A5,918,914627,662
Events in quadrant B3,524,964656,616
Events in quadrant C2,651,303634,577
Events in quadrant D4,910,516560,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02154228
B01450332
C0123294
D0187686

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59411803.029793%
B5940611.026936%
C5949200.336191%
D59493235.429484%

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 7065 5947 82 82 1.16% 1.38%
B 7066 5948 19 19 0.27% 0.32%
C 7066 5951 2 2 0.03% 0.03%
D 7066 5951 291 291 4.12% 4.89%

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 3272804 24518.52 637 624 133.5
A 9 191 105531 786.07 637 624 133.5
A 0 243 31755 233.26 637 624 133.5
B 3 112 522216 4141.51 643 625 125.9
B 4 171 112018 884.48 643 625 125.9
B 12 16 109816 866.99 643 625 125.9
C 3 233 100742 657.65 641 644 152.2
C 14 254 37674 243.29 641 644 152.2
C 12 250 11208 69.41 641 644 152.2
D 1 52 1776500 11354.3 624 604 156.4
D 5 171 195792 1247.95 624 604 156.4
D 12 128 150009 955.23 624 604 156.4

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