ASTROSAT CZTI

Data Quality Report

Orbit 39007

Creation date: 2024-06-27T21:59:17.640663
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/AS1C06_010T05_9000005424_39007cztM0_level2.fits modeM0/AS1C06_010T05_9000005424_39007cztM0_level2_quad_clean.evt
Size (bytes)235,117,44065,845,440
Size224.2 MB 62.8 MB
Events in quadrant A2,349,916441,804
Events in quadrant B1,945,115448,075
Events in quadrant C1,866,033426,989
Events in quadrant D2,230,494395,553

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094631
B085441
C080781
D093501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3987531.329320%
B3987591.479809%
C3987100.250815%
D3987230.576875%

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 3987 3987 43 43 1.08% 1.08%
B 3987 3987 52 52 1.30% 1.30%
C 3987 3987 8 8 0.20% 0.20%
D 3987 3987 22 22 0.55% 0.55%

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 13 248 325278 3657.35 434 425 88.8
A 10 83 279307 3139.79 434 425 88.8
A 15 222 53931 602.4 434 425 88.8
B 5 172 191566 2297.77 429 418 83.2
B 0 230 37039 440.22 429 418 83.2
B 15 85 20452 240.83 429 418 83.2
C 15 214 166245 1675.81 422 425 98.9
C 1 23 22909 227.23 422 425 98.9
C 1 128 20180 199.65 422 425 98.9
D 12 227 211966 2024.4 425 412 104.5
D 1 52 110326 1051.79 425 412 104.5
D 12 235 90968 866.55 425 412 104.5

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