ASTROSAT CZTI

Data Quality Report

Orbit 20190109_T03_070T08_9000002646_level2

Creation date: 2024-11-14T15:12:57.483418
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/AS1T03_070T08_9000002646cztM0_level2.fits modeM0/AS1T03_070T08_9000002646cztM0_level2_quad_clean.evt
Size (bytes)191,623,68092,462,400
Size182.7 MB 88.2 MB
Events in quadrant A1,188,540387,433
Events in quadrant B1,154,830393,795
Events in quadrant C1,149,030370,614
Events in quadrant D1,007,058342,028

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0399840
B0409950
C0433770
D0432010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189222291.210231%
B189222341.236656%
C189225462.885530%
D189223321.754571%

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 24007 18921 0 0 0.00% 0.00%
B 24007 18921 0 0 0.00% 0.00%
C 24007 18917 0 0 0.00% 0.00%
D 24007 18913 0 0 0.00% 0.00%

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 29 1118 10.68 309 292 77.3
A 7 110 934 8.3 309 292 77.3
A 9 19 903 7.9 309 292 77.3
B 2 9 900 10.09 305 293 60.1
B 5 128 787 8.21 305 293 60.1
B 3 17 786 8.2 305 293 60.1
C 1 81 880 7.51 303 285 79.3
C 1 80 854 7.18 303 285 79.3
C 12 241 811 6.64 303 285 79.3
D 7 3 732 6.06 286 260 77.8
D 1 19 728 6.01 286 260 77.8
D 3 14 720 5.91 286 260 77.8

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