ASTROSAT CZTI

Data Quality Report

Orbit 47386

Creation date: 2024-07-03T10:22:11.434704
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_093T25_9000006324_47386cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47386cztM0_level2_quad_clean.evt
Size (bytes)468,086,400108,987,840
Size446.4 MB 103.9 MB
Events in quadrant A6,990,204714,533
Events in quadrant B3,351,853757,149
Events in quadrant C2,958,450720,133
Events in quadrant D3,518,541651,729

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252092
B0143502
C0134982
D0151002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65433725.685465%
B65431001.528351%
C6543370.565490%
D65431312.002140%

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 7663 6543 118 118 1.54% 1.80%
B 7663 6543 19 19 0.25% 0.29%
C 7663 6543 1 1 0.01% 0.02%
D 7663 6543 95 95 1.24% 1.45%

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 3833004 24527.48 748 733 156.2
A 9 191 178418 1137.23 748 733 156.2
A 15 235 49576 312.61 748 733 156.2
B 0 190 100443 662.51 757 734 150.5
B 5 255 80812 532.08 757 734 150.5
B 0 200 78169 514.51 757 734 150.5
C 0 207 23005 127.3 739 744 174.9
C 9 237 21503 118.71 739 744 174.9
C 3 233 16521 90.22 739 744 174.9
D 9 49 181745 969.3 736 714 186.8
D 7 38 97726 519.44 736 714 186.8
D 11 224 83346 442.44 736 714 186.8

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