ASTROSAT CZTI

Data Quality Report

Orbit 47013

Creation date: 2024-06-27T23:30:43.635160
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/AS1C09_006T01_9000006294_47013cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47013cztM0_level2_quad_clean.evt
Size (bytes)714,942,72094,645,440
Size681.8 MB 90.3 MB
Events in quadrant A6,450,527706,229
Events in quadrant B12,831,168342,391
Events in quadrant C3,071,581710,581
Events in quadrant D3,603,240649,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238941
B0426291
C0138131
D0153211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65523114.746642%
B6552416363.537851%
C65531081.648100%
D65532183.326721%

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 7422 6553 10 10 0.13% 0.15%
B 7422 6553 3389 3389 45.66% 51.72%
C 7423 6554 19 19 0.26% 0.29%
D 7423 6554 100 100 1.35% 1.53%

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 3410452 21880.19 746 730 155.8
A 9 191 105284 670.92 746 730 155.8
A 13 248 40323 254.07 746 730 155.8
B 3 112 9792390 82793.69 592 573 118.3
B 4 171 466974 3943.61 592 573 118.3
B 5 255 93864 788.81 592 573 118.3
C 14 254 119515 681.86 742 745 174.2
C 3 233 33959 190.68 742 745 174.2
C 12 250 13246 71.77 742 745 174.2
D 13 249 340764 1801.7 744 723 188.7
D 12 238 90693 476.7 744 723 188.7
D 1 52 77558 407.11 744 723 188.7

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