ASTROSAT CZTI

Data Quality Report

Orbit 38930

Creation date: 2024-06-27T21:58:18.265846
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/AS1T05_064T01_9000005416_38930cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38930cztM0_level2_quad_clean.evt
Size (bytes)339,252,48097,997,760
Size323.5 MB 93.5 MB
Events in quadrant A3,086,206649,582
Events in quadrant B3,155,968657,639
Events in quadrant C2,802,417644,988
Events in quadrant D3,048,744598,194

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128333
B0133622
C0120902
D0133452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5964320.536553%
B59641262.112676%
C596480.134138%
D5964540.905433%

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 7307 5965 19 19 0.26% 0.32%
B 7307 5965 96 96 1.31% 1.61%
C 7307 5965 5 5 0.07% 0.08%
D 7307 5965 53 53 0.73% 0.89%

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 10 83 446553 3374.78 651 633 132.1
A 13 248 80805 606.75 651 633 132.1
A 6 10 22654 166.66 651 633 132.1
B 5 172 328577 2644.88 644 625 124.0
B 0 190 201605 1620.87 644 625 124.0
B 0 155 61183 488.39 644 625 124.0
C 15 214 244531 1631.59 640 643 149.5
C 0 10 22063 143.29 640 643 149.5
C 14 254 15165 97.15 640 643 149.5
D 2 250 202377 1299.91 636 620 155.2
D 2 249 99888 639.58 636 620 155.2
D 13 249 80106 512.12 636 620 155.2

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