ASTROSAT CZTI

Data Quality Report

Orbit 42753

Creation date: 2024-06-27T22:43:50.742391
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/AS1A05_013T01_9000005822_42753cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42753cztM0_level2_quad_clean.evt
Size (bytes)388,932,48091,503,360
Size370.9 MB 87.3 MB
Events in quadrant A3,660,824616,057
Events in quadrant B2,968,037605,072
Events in quadrant C4,720,060603,264
Events in quadrant D2,625,642565,662

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141343
B0125322
C0179362
D0116372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54341092.005889%
B54342033.735738%
C54341432.631579%
D5434170.312845%

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 7107 5435 78 78 1.10% 1.44%
B 7107 5435 158 158 2.22% 2.91%
C 7107 5435 138 138 1.94% 2.54%
D 7107 5435 16 16 0.23% 0.29%

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 584704 4685.88 607 594 124.7
A 13 248 537218 4304.93 607 594 124.7
A 7 3 133599 1067.0 607 594 124.7
B 5 172 570035 4959.3 588 572 114.8
B 10 246 25371 215.97 588 572 114.8
B 12 0 20905 177.07 588 572 114.8
C 0 239 2116439 15396.9 589 592 137.4
C 15 214 226191 1641.67 589 592 137.4
C 14 254 73015 527.02 589 592 137.4
D 12 233 104557 711.15 597 581 146.2
D 12 6 70221 476.31 597 581 146.2
D 1 47 49737 336.2 597 581 146.2

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