ASTROSAT CZTI

Data Quality Report

Orbit 42384

Creation date: 2024-06-27T22:39:38.929371
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/AS1C06_010T01_9000005800_42384cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42384cztM0_level2_quad_clean.evt
Size (bytes)317,966,40087,085,440
Size303.2 MB 83.1 MB
Events in quadrant A2,787,401582,491
Events in quadrant B2,472,965590,514
Events in quadrant C3,064,301564,656
Events in quadrant D3,029,795525,784

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114001
B0111161
C0124691
D0129531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5332100.187547%
B5333270.506282%
C53331041.950122%
D53331021.912620%

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 7034 5333 1 1 0.01% 0.02%
B 7035 5334 20 20 0.28% 0.37%
C 7035 5334 103 103 1.46% 1.93%
D 7035 5334 81 81 1.15% 1.52%

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 544123 4604.35 576 564 118.1
A 13 248 8983 71.32 576 564 118.1
A 13 6 8016 63.12 576 564 118.1
B 5 172 91739 842.95 567 551 108.2
B 0 245 39701 361.91 567 551 108.2
B 4 81 27531 249.41 567 551 108.2
C 14 254 595109 4640.35 549 552 128.1
C 15 214 226230 1761.35 549 552 128.1
C 8 79 72552 561.94 549 552 128.1
D 1 52 205043 1516.82 555 540 134.8
D 10 118 144991 1071.41 555 540 134.8
D 2 249 100797 743.62 555 540 134.8

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