ASTROSAT CZTI

Data Quality Report

Orbit 47023

Creation date: 2024-06-27T23:30:50.840270
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/AS1C09_005T01_9000006296_47023cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47023cztM0_level2_quad_clean.evt
Size (bytes)528,370,56093,234,240
Size503.9 MB 88.9 MB
Events in quadrant A5,743,245646,494
Events in quadrant B7,167,734526,095
Events in quadrant C2,740,074650,615
Events in quadrant D3,442,694581,497

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212301
B0254001
C0124791
D0144531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59881772.955912%
B5989161126.899315%
C5988751.252505%
D59882474.124916%

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 6998 5989 4 4 0.06% 0.07%
B 6999 5990 993 993 14.19% 16.58%
C 6998 5989 4 4 0.06% 0.07%
D 6998 5989 139 139 1.99% 2.32%

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 3094510 22617.07 662 646 136.8
A 9 191 78767 571.09 662 646 136.8
A 13 254 10681 73.36 662 646 136.8
B 3 112 4238408 35419.07 614 595 119.6
B 4 171 204398 1703.36 614 595 119.6
B 0 200 150583 1253.58 614 595 119.6
C 9 54 79314 506.31 663 667 155.3
C 14 254 56415 358.89 663 667 155.3
C 12 249 7852 46.26 663 667 155.3
D 2 249 475483 2876.13 655 635 165.1
D 13 249 155103 935.61 655 635 165.1
D 12 233 138560 835.41 655 635 165.1

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