ASTROSAT CZTI

Data Quality Report

Orbit 47328

Creation date: 2024-06-29T04:47:51.108114
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/AS1A13_037T01_9000006318_47328cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47328cztM0_level2_quad_clean.evt
Size (bytes)588,810,240109,016,640
Size561.5 MB 104.0 MB
Events in quadrant A7,473,933687,335
Events in quadrant B3,150,163786,509
Events in quadrant C5,983,512707,907
Events in quadrant D4,684,417665,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267812
B0140062
C0221672
D0183612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65116339.722009%
B6511901.382276%
C65114496.896022%
D65123505.374693%

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 8656 6513 263 263 3.04% 4.04%
B 8656 6513 0 0 0.00% 0.00%
C 8656 6513 449 449 5.19% 6.89%
D 8657 6514 224 224 2.59% 3.44%

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 3619153 23356.53 742 727 154.9
A 15 235 610929 3938.78 742 727 154.9
A 9 191 332793 2143.45 742 727 154.9
B 0 183 50024 327.1 760 736 150.7
B 0 198 40545 264.19 760 736 150.7
B 12 111 18858 120.27 760 736 150.7
C 12 2 3026992 17414.59 737 742 173.8
C 3 233 75205 428.5 737 742 173.8
C 12 249 5990 30.2 737 742 173.8
D 12 2 842558 4553.52 742 720 184.9
D 10 204 419022 2262.6 742 720 184.9
D 7 38 179405 966.51 742 720 184.9

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