ASTROSAT CZTI

Data Quality Report

Orbit 20240906_A13_029T01_9000006426_level2

Creation date: 2024-09-18T21:01:15.670646
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_029T01_9000006426cztM0_level2.fits modeM0/AS1A13_029T01_9000006426cztM0_level2_quad_clean.evt
Size (bytes)4,815,141,1204,811,984,640
Size4.5 GB 4.5 GB
Events in quadrant A27,819,68628,076,649
Events in quadrant B26,724,71227,939,579
Events in quadrant C28,727,02627,325,766
Events in quadrant D24,484,89224,361,656

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021345480
B014060770
C011623050
D013177410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112880
B0112850
C0112880
D0112830

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06410
B06450
C06420
D06450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A555364292235.261954%
B555416383216.899513%
C55544749970.899636%
D555433178233.208848%

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 670641 554810 0 0 0.00% 0.00%
B 670641 553460 0 0 0.00% 0.00%
C 670641 555159 0 0 0.00% 0.00%
D 670640 554610 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 7 110 22456 8.52 7246 6744 1843.5
A 7 30 20959 7.71 7246 6744 1843.5
A 14 95 20953 7.71 7246 6744 1843.5
B 2 9 25629 13.55 7062 6684 1398.4
B 2 8 20593 9.95 7062 6684 1398.4
B 3 17 19526 9.18 7062 6684 1398.4
C 3 202 21420 7.36 7598 7043 1953.0
C 1 81 21228 7.26 7598 7043 1953.0
C 3 203 20668 6.98 7598 7043 1953.0
D 10 189 17716 5.77 7056 6379 1966.0
D 15 63 17594 5.7 7056 6379 1966.0
D 4 16 17460 5.64 7056 6379 1966.0

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