ASTROSAT CZTI

Data Quality Report

Orbit 42145

Creation date: 2024-06-27T22:37:30.368170
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/AS1C07_001T11_9000005760_42145cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42145cztM0_level2_quad_clean.evt
Size (bytes)344,041,92091,368,000
Size328.1 MB 87.1 MB
Events in quadrant A3,195,504604,414
Events in quadrant B2,600,864623,023
Events in quadrant C2,582,031605,987
Events in quadrant D3,911,077533,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129732
B0119772
C0115002
D0159642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5722320.559245%
B5722180.314575%
C572230.052429%
D57223025.277875%

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 7215 5723 26 26 0.36% 0.45%
B 7215 5723 9 9 0.12% 0.16%
C 7215 5723 0 0 0.00% 0.00%
D 7215 5723 240 240 3.33% 4.19%

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 609753 4896.19 604 590 124.4
A 15 223 158785 1271.5 604 590 124.4
A 12 189 46249 366.99 604 590 124.4
B 15 33 77317 657.73 603 585 116.7
B 0 229 51386 435.45 603 585 116.7
B 15 85 40877 345.37 603 585 116.7
C 15 214 238759 1723.05 593 596 138.2
C 8 79 14796 102.73 593 596 138.2
C 12 249 8358 56.16 593 596 138.2
D 13 249 594729 4190.5 577 560 141.8
D 1 47 421623 2969.63 577 560 141.8
D 1 52 420737 2963.38 577 560 141.8

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