ASTROSAT CZTI

Data Quality Report

Orbit 38192

Creation date: 2024-06-27T21:49:35.123176
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/AS1A07_145T01_9000005370_38192cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38192cztM0_level2_quad_clean.evt
Size (bytes)333,236,160100,307,520
Size317.8 MB 95.7 MB
Events in quadrant A3,021,323674,285
Events in quadrant B2,805,758689,640
Events in quadrant C2,892,415654,341
Events in quadrant D3,155,301605,921

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124513
B0123362
C0122652
D0131652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5913160.270590%
B5913230.388973%
C5913100.169119%
D5913500.845594%

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 7226 5913 6 6 0.08% 0.10%
B 7226 5913 6 6 0.08% 0.10%
C 7226 5914 7 7 0.10% 0.12%
D 7226 5914 48 48 0.66% 0.81%

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 393450 2883.71 667 656 136.2
A 12 189 30929 222.25 667 656 136.2
A 13 254 8768 59.55 667 656 136.2
B 5 184 91683 704.84 661 642 129.2
B 5 172 54036 413.38 661 642 129.2
B 12 111 15967 118.65 661 642 129.2
C 15 214 246574 1626.8 646 650 151.2
C 14 254 86839 570.14 646 650 151.2
C 0 10 14543 91.9 646 650 151.2
D 1 52 241200 1530.39 650 632 157.2
D 13 249 123948 784.48 650 632 157.2
D 12 235 79242 500.08 650 632 157.2

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