ASTROSAT CZTI

Data Quality Report

Orbit 43664

Creation date: 2024-06-27T22:54:15.365305
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/AS1A12_018T01_9000005896_43664cztM0_level2.fits modeM0/AS1A12_018T01_9000005896_43664cztM0_level2_quad_clean.evt
Size (bytes)890,392,32084,556,800
Size849.1 MB 80.6 MB
Events in quadrant A6,568,692656,799
Events in quadrant B3,901,622677,007
Events in quadrant C13,431,340293,853
Events in quadrant D8,612,116525,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236512
B0155313
C0437842
D0296252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57795058.738536%
B57792133.685759%
C5779464680.394532%
D5779169929.399550%

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 6769 5781 191 191 2.82% 3.30%
B 6769 5781 88 88 1.30% 1.52%
C 6769 5781 4392 4392 64.88% 75.97%
D 6769 5781 1579 1579 23.33% 27.31%

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 2521601 19292.89 636 623 130.7
A 10 83 771544 5899.81 636 623 130.7
A 15 223 652384 4987.89 636 623 130.7
B 4 206 518258 4185.78 649 630 123.7
B 12 32 202663 1633.73 649 630 123.7
B 0 230 172758 1391.91 649 630 123.7
C 15 142 10914576 152058.11 305 306 71.8
C 15 158 858909 11962.1 305 306 71.8
C 15 157 162034 2253.2 305 306 71.8
D 7 80 1973703 12890.75 576 561 153.1
D 12 6 790845 5163.01 576 561 153.1
D 1 52 579516 3782.38 576 561 153.1

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