ASTROSAT CZTI

Data Quality Report

Orbit 43396

Creation date: 2024-06-27T22:51:29.914910
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_018T01_9000005874_43396cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43396cztM0_level2_quad_clean.evt
Size (bytes)377,893,440102,700,800
Size360.4 MB 97.9 MB
Events in quadrant A4,144,915684,255
Events in quadrant B2,982,092702,759
Events in quadrant C3,212,431664,373
Events in quadrant D3,151,651612,048

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162682
B0132433
C0135282
D0141102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63891372.144311%
B6389160.250430%
C6389350.547817%
D6389701.095633%

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 9403 6391 107 107 1.14% 1.67%
B 9403 6391 2 2 0.02% 0.03%
C 9403 6391 25 25 0.27% 0.39%
D 9403 6391 74 74 0.79% 1.16%

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 711238 5007.13 686 672 141.9
A 15 237 378084 2659.5 686 672 141.9
A 7 3 330633 2325.13 686 672 141.9
B 0 189 118876 882.5 689 669 133.9
B 5 255 59798 441.44 689 669 133.9
B 4 67 29210 213.08 689 669 133.9
C 15 214 269007 1719.72 671 674 156.0
C 3 233 205285 1311.33 671 674 156.0
C 15 159 53498 338.54 671 674 156.0
D 12 6 159528 961.92 674 653 165.2
D 10 118 124254 748.35 674 653 165.2
D 12 233 68228 409.14 674 653 165.2

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