ASTROSAT CZTI

Data Quality Report

Orbit 44719

Creation date: 2024-06-27T23:05:41.447710
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_009T01_9000006016_44719cztM0_level2.fits modeM0/AS1A13_009T01_9000006016_44719cztM0_level2_quad_clean.evt
Size (bytes)585,080,640103,320,000
Size558.0 MB 98.5 MB
Events in quadrant A5,141,857728,783
Events in quadrant B3,585,068765,632
Events in quadrant C3,053,753732,950
Events in quadrant D9,387,252460,448

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204572
B0148882
C0134292
D0323054

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63182143.387148%
B63181101.741057%
C6318510.807217%
D6317212433.623555%

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 7513 6319 25 25 0.33% 0.40%
B 7513 6319 37 37 0.49% 0.59%
C 7513 6319 20 20 0.27% 0.32%
D 7512 6318 1755 1755 23.36% 27.78%

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 2093248 13446.66 747 732 155.6
A 13 248 91728 584.75 747 732 155.6
A 15 223 33487 210.49 747 732 155.6
B 0 190 206074 1382.44 754 733 148.5
B 0 189 158870 1064.64 754 733 148.5
B 5 255 87550 584.49 754 733 148.5
C 14 254 51373 290.98 739 746 174.0
C 12 2 42792 241.66 739 746 174.0
C 12 250 31247 175.3 739 746 174.0
D 11 241 3897121 23749.42 639 619 164.1
D 1 52 724737 4413.54 639 619 164.1
D 13 249 720074 4385.12 639 619 164.1

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