ASTROSAT CZTI

Data Quality Report

Orbit 46443

Creation date: 2024-06-27T23:23:16.200973
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_062T01_9000006208_46443cztM0_level2.fits modeM0/AS1A13_062T01_9000006208_46443cztM0_level2_quad_clean.evt
Size (bytes)438,350,400109,831,680
Size418.0 MB 104.7 MB
Events in quadrant A5,884,681718,042
Events in quadrant B3,184,915752,986
Events in quadrant C2,993,320729,293
Events in quadrant D3,656,459670,196

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215652
B0138252
C0134842
D0152032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65281722.634804%
B6528791.210172%
C6528420.643382%
D6528681.041667%

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 7598 6528 25 25 0.33% 0.38%
B 7598 6528 17 17 0.22% 0.26%
C 7598 6529 10 10 0.13% 0.15%
D 7598 6529 49 49 0.64% 0.75%

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 2941126 18929.11 745 729 155.3
A 3 7 50875 322.82 745 729 155.3
A 7 3 12547 76.08 745 729 155.3
B 0 189 191628 1311.33 743 722 145.6
B 12 111 19220 127.06 743 722 145.6
B 0 190 18942 125.15 743 722 145.6
C 1 3 52531 299.86 734 739 172.7
C 3 233 36848 209.06 734 739 172.7
C 12 249 21191 118.41 734 739 172.7
D 13 249 480864 2637.62 729 707 182.0
D 1 52 359188 1969.22 729 707 182.0
D 14 34 29776 159.68 729 707 182.0

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