ASTROSAT CZTI

Data Quality Report

Orbit 43190

Creation date: 2024-06-27T22:49:06.567381
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/AS1A09_036T17_9000005858_43190cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43190cztM0_level2_quad_clean.evt
Size (bytes)441,843,84093,432,960
Size421.4 MB 89.1 MB
Events in quadrant A4,768,763616,818
Events in quadrant B4,061,940630,280
Events in quadrant C2,843,543616,004
Events in quadrant D4,224,701554,443

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183172
B0161662
C0122002
D0166482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58812694.574052%
B58812724.625064%
C5881320.544125%
D58812934.982146%

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 7163 5882 180 180 2.51% 3.06%
B 7163 5882 130 130 1.81% 2.21%
C 7163 5882 20 20 0.28% 0.34%
D 7163 5882 284 284 3.96% 4.83%

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 15 222 731878 5484.74 636 621 133.3
A 10 83 649750 4868.74 636 621 133.3
A 12 189 411690 3083.19 636 621 133.3
B 0 186 1056118 8653.13 630 613 122.0
B 0 229 346571 2836.2 630 613 122.0
B 0 189 118778 968.73 630 613 122.0
C 15 214 243996 1657.24 626 631 146.8
C 14 254 137929 934.96 626 631 146.8
C 4 254 10284 65.73 626 631 146.8
D 1 52 1633680 10626.78 618 598 153.7
D 12 6 113672 735.79 618 598 153.7
D 5 171 54847 353.01 618 598 153.7

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