ASTROSAT CZTI

Data Quality Report

Orbit 38089

Creation date: 2024-06-27T21:48:16.199277
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/AS1A11_047T09_9000005362_38089cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38089cztM0_level2_quad_clean.evt
Size (bytes)385,908,48094,023,360
Size368.0 MB 89.7 MB
Events in quadrant A3,056,819641,732
Events in quadrant B3,049,796651,641
Events in quadrant C3,661,035620,593
Events in quadrant D4,085,239543,996

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122613
B0125892
C0143842
D0159032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5556240.431965%
B55561001.799856%
C5556791.421886%
D55564217.577394%

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 7169 5557 13 13 0.18% 0.23%
B 7169 5557 67 67 0.93% 1.21%
C 7169 5557 101 101 1.41% 1.82%
D 7169 5557 371 371 5.18% 6.68%

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 362590 2771.22 646 634 130.6
A 9 143 73960 561.4 646 634 130.6
A 7 3 48752 368.4 646 634 130.6
B 0 229 294353 2375.93 637 620 123.6
B 5 172 99658 801.09 637 620 123.6
B 12 18 37366 297.23 637 620 123.6
C 1 23 855033 5856.95 625 627 145.9
C 15 214 232775 1591.37 625 627 145.9
C 14 254 64279 436.33 625 627 145.9
D 1 52 794068 5295.69 614 598 149.8
D 12 2 411996 2745.71 614 598 149.8
D 7 223 130229 865.17 614 598 149.8

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