ASTROSAT CZTI

Data Quality Report

Orbit 43319

Creation date: 2024-06-27T22:50:35.689835
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/AS1A12_088T25_9000005866_43319cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43319cztM0_level2_quad_clean.evt
Size (bytes)353,131,20094,916,160
Size336.8 MB 90.5 MB
Events in quadrant A4,102,312618,359
Events in quadrant B2,729,885658,397
Events in quadrant C2,706,056629,527
Events in quadrant D3,092,860571,555

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156792
B0117582
C0114702
D0130152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56582965.231531%
B5659230.406432%
C565960.106026%
D5659751.325322%

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 7092 5659 234 234 3.30% 4.14%
B 7093 5660 17 17 0.24% 0.30%
C 7093 5660 1 1 0.01% 0.02%
D 7093 5660 73 73 1.03% 1.29%

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 15 237 981017 7353.76 625 610 133.3
A 10 83 648865 4862.38 625 610 133.3
A 12 189 35098 258.69 625 610 133.3
B 0 186 66444 508.22 635 614 129.5
B 5 172 46207 351.99 635 614 129.5
B 0 190 43194 328.73 635 614 129.5
C 15 214 239254 1603.75 619 622 148.8
C 3 233 33766 222.75 619 622 148.8
C 14 254 8333 51.82 619 622 148.8
D 2 249 222216 1428.37 617 597 155.2
D 1 52 199435 1281.55 617 597 155.2
D 12 6 76276 487.76 617 597 155.2

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