ASTROSAT CZTI

Data Quality Report

Orbit 48052

Creation date: 2024-08-16T22:25:06.116080
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_037T05_9000006392_48052cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48052cztM0_level2_quad_clean.evt
Size (bytes)548,530,56094,443,840
Size523.1 MB 90.1 MB
Events in quadrant A6,543,299640,474
Events in quadrant B3,081,892661,981
Events in quadrant C2,948,960634,945
Events in quadrant D7,261,351498,480

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237631
B0133571
C0131981
D0258491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60611973.250289%
B6062851.402177%
C6061540.890942%
D6061105517.406369%

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 7061 6062 33 33 0.47% 0.54%
B 7062 6063 26 26 0.37% 0.43%
C 7061 6062 49 49 0.69% 0.81%
D 7061 6062 933 933 13.21% 15.39%

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 3877696 27870.04 664 651 139.1
A 0 31 44315 313.88 664 651 139.1
A 0 243 26820 188.12 664 651 139.1
B 4 171 138882 1047.49 666 646 132.0
B 0 200 106388 801.27 666 646 132.0
B 7 221 89371 672.32 666 646 132.0
C 12 2 234387 1527.03 647 651 153.1
C 0 207 70668 457.43 647 651 153.1
C 3 233 40909 263.01 647 651 153.1
D 2 165 3796517 24414.67 609 589 155.5
D 2 249 418876 2690.34 609 589 155.5
D 7 67 184664 1183.93 609 589 155.5

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