ASTROSAT CZTI

Data Quality Report

Orbit 47263

Creation date: 2024-10-16T00:47:08.585560
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_008T03_9000006306_47263cztM0_level2.fits modeM0/AS1C09_008T03_9000006306_47263cztM0_level2_quad_clean.evt
Size (bytes)410,895,36056,640,960
Size391.9 MB 54.0 MB
Events in quadrant A4,618,303403,087
Events in quadrant B2,824,172385,191
Events in quadrant C1,655,200407,666
Events in quadrant D5,803,084238,058

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185412074
B012069908
C08930731
D0246424736

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0873
B0895
C08911
D0897

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B111
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39401573.984772%
B406343510.706375%
C409310.024432%
D3780140437.142857%

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 4492 4167 116 116 2.58% 2.78%
B 4492 4242 289 289 6.43% 6.81%
C 4492 4244 0 0 0.00% 0.00%
D 4493 4034 993 993 22.10% 24.62%

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 2150559 24990.05 411 402 86.0
A 9 191 843093 9794.12 411 402 86.0
A 10 255 13294 149.84 411 402 86.0
B 15 201 882585 11124.4 398 386 79.3
B 0 200 198970 2504.11 398 386 79.3
B 5 32 33420 416.55 398 386 79.3
C 14 254 9156 87.7 420 422 99.6
C 13 61 2896 24.84 420 422 99.6
C 3 233 2808 23.96 420 422 99.6
D 12 1 3217148 40747.73 309 298 78.9
D 6 112 1204495 15253.52 309 298 78.9
D 12 233 70571 890.15 309 298 78.9

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