ASTROSAT CZTI

Data Quality Report

Orbit 40012

Creation date: 2024-06-27T22:11:16.171171
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/AS1A12_054T03_9000005516_40012cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40012cztM0_level2_quad_clean.evt
Size (bytes)304,672,32094,651,200
Size290.6 MB 90.3 MB
Events in quadrant A2,810,066639,290
Events in quadrant B2,947,567658,804
Events in quadrant C2,546,030630,510
Events in quadrant D2,565,214569,901

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114603
B0123172
C0107482
D0114842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5246100.190621%
B52461172.230271%
C524680.152497%
D5246631.200915%

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 7369 5247 5 5 0.07% 0.10%
B 7369 5247 61 61 0.83% 1.16%
C 7369 5247 5 5 0.07% 0.10%
D 7369 5247 53 53 0.72% 1.01%

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 456766 3785.63 595 585 120.5
A 2 79 29391 239.05 595 585 120.5
A 13 248 15030 119.87 595 585 120.5
B 4 171 528667 4612.39 593 578 114.5
B 4 81 59020 510.44 593 578 114.5
B 0 230 17015 143.56 593 578 114.5
C 15 214 221320 1643.97 581 586 134.3
C 14 254 27137 197.74 581 586 134.3
C 0 10 19359 139.82 581 586 134.3
D 12 227 121139 863.9 572 557 139.6
D 13 249 96331 686.16 572 557 139.6
D 2 250 66091 469.51 572 557 139.6

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