ASTROSAT CZTI

Data Quality Report

Orbit 43023

Creation date: 2024-06-27T22:47:02.022085
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_148T01_9000005838_43023cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43023cztM0_level2_quad_clean.evt
Size (bytes)396,270,720113,613,120
Size377.9 MB 108.3 MB
Events in quadrant A3,368,014821,566
Events in quadrant B3,722,021794,454
Events in quadrant C2,806,523789,376
Events in quadrant D4,367,979671,334

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133262
B0144422
C0113742
D0163732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5198541.038861%
B51982915.598307%
C519830.057715%
D51984067.810696%

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 7109 5199 30 30 0.42% 0.58%
B 7109 5199 227 227 3.19% 4.37%
C 7109 5199 1 1 0.01% 0.02%
D 7109 5199 342 342 4.81% 6.58%

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 579299 3861.2 680 668 149.9
A 15 237 154888 1029.11 680 668 149.9
A 13 248 7391 44.86 680 668 149.9
B 0 186 932996 6722.62 660 647 138.7
B 4 81 94051 673.48 660 647 138.7
B 0 189 63800 455.36 660 647 138.7
C 15 214 229296 1388.5 653 660 164.7
C 5 250 21529 126.74 653 660 164.7
C 14 254 7302 40.34 653 660 164.7
D 1 52 788403 4713.63 633 615 167.1
D 13 249 632375 3780.06 633 615 167.1
D 12 233 214869 1281.96 633 615 167.1

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