ASTROSAT CZTI

Data Quality Report

Orbit 45417

Creation date: 2024-06-27T23:11:23.479798
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_038T03_9000006058_45417cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45417cztM0_level2_quad_clean.evt
Size (bytes)500,866,560108,829,440
Size477.7 MB 103.8 MB
Events in quadrant A7,546,030644,629
Events in quadrant B3,221,468786,139
Events in quadrant C3,115,731752,762
Events in quadrant D4,160,231665,437

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271942
B0139022
C0137312
D0168592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6400109217.062500%
B6400681.062500%
C6400450.703125%
D64001973.078125%

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 7620 6400 931 931 12.22% 14.55%
B 7620 6400 7 7 0.09% 0.11%
C 7620 6401 17 17 0.22% 0.27%
D 7620 6401 144 144 1.89% 2.25%

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 9 191 2459140 17050.33 700 687 144.2
A 10 83 2374512 16463.4 700 687 144.2
A 3 137 7778 49.18 700 687 144.2
B 15 201 111915 755.2 752 730 147.2
B 0 171 54760 366.99 752 730 147.2
B 0 190 29564 195.85 752 730 147.2
C 14 254 114441 649.53 743 748 175.0
C 5 4 54578 307.53 743 748 175.0
C 0 207 14514 78.65 743 748 175.0
D 11 241 335662 1860.85 725 704 180.0
D 2 249 332628 1843.99 725 704 180.0
D 1 52 193455 1070.82 725 704 180.0

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