ASTROSAT CZTI

Data Quality Report

Orbit 43532

Creation date: 2024-06-27T22:52:52.094878
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_102T01_9000005876_43532cztM0_level2.fits modeM0/AS1A12_102T01_9000005876_43532cztM0_level2_quad_clean.evt
Size (bytes)1,190,136,96073,696,320
Size1.1 GB 70.3 MB
Events in quadrant A8,897,895711,624
Events in quadrant B8,361,202732,244
Events in quadrant C14,868,182337,315
Events in quadrant D11,455,12215,122

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307181
B0291691
C0482851
D0382706

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6141139722.748738%
B6141144523.530370%
C6141501881.713076%
D61406140100.000000%

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 7361 6142 1013 1013 13.76% 16.49%
B 7360 6141 1159 1159 15.75% 18.87%
C 7360 6140 4903 4903 66.62% 79.85%
D 7359 6139 2756 2756 37.45% 44.89%

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 0 228 2316219 17013.76 670 658 136.1
A 15 222 1770937 13007.26 670 658 136.1
A 10 83 719144 5279.13 670 658 136.1
B 3 42 3218449 25454.61 670 652 126.4
B 3 25 1901455 15036.43 670 652 126.4
B 5 235 174752 1377.23 670 652 126.4
C 15 142 5542217 72238.27 326 328 76.7
C 15 174 4523412 58958.19 326 328 76.7
C 15 190 1272506 16582.78 326 328 76.7
D 4 216 6094168 173460.15 41 37 35.1
D 4 212 648306 18451.99 41 37 35.1
D 4 200 629451 17915.31 41 37 35.1

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