ASTROSAT CZTI

Data Quality Report

Orbit 48302

Creation date: 2024-09-06T11:33:57.071153
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_9000006422_48302cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48302cztM0_level2_quad_clean.evt
Size (bytes)486,593,280108,875,520
Size464.1 MB 103.8 MB
Events in quadrant A6,889,846725,092
Events in quadrant B3,445,830760,263
Events in quadrant C3,006,579728,675
Events in quadrant D4,173,541636,535

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256031
B0142212
C0132411
D0166471

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63963064.784240%
B63951772.767787%
C6396931.454034%
D63964517.051282%

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 7521 6397 23 23 0.31% 0.36%
B 7520 6396 16 16 0.21% 0.25%
C 7521 6397 2 2 0.03% 0.03%
D 7521 6397 297 297 3.95% 4.64%

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 3826989 24050.51 764 748 159.1
A 13 248 75075 467.2 764 748 159.1
A 10 255 26536 162.1 764 748 159.1
B 4 21 174803 1150.98 765 742 151.2
B 5 255 120995 795.17 765 742 151.2
B 0 200 50840 331.27 765 742 151.2
C 14 254 20297 110.45 754 760 176.9
C 12 2 15815 85.11 754 760 176.9
C 1 3 13645 72.84 754 760 176.9
D 2 165 654540 3506.71 740 715 186.4
D 13 29 159981 854.2 740 715 186.4
D 12 2 143616 766.43 740 715 186.4

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