ASTROSAT CZTI

Data Quality Report

Orbit 38051

Creation date: 2024-06-27T21:47:48.887901
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_044T01_9000005360_38051cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38051cztM0_level2_quad_clean.evt
Size (bytes)339,672,96096,393,600
Size323.9 MB 91.9 MB
Events in quadrant A2,949,254645,512
Events in quadrant B3,287,496655,107
Events in quadrant C2,767,127640,206
Events in quadrant D3,129,183582,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123673
B0135122
C0116752
D0130532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5655300.530504%
B56551482.617153%
C5655100.176835%
D5655671.184792%

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 7237 5656 10 10 0.14% 0.18%
B 7237 5656 86 86 1.19% 1.52%
C 7237 5656 4 4 0.06% 0.07%
D 7237 5656 49 49 0.68% 0.87%

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 402724 3108.35 635 624 129.4
A 13 248 33549 254.52 635 624 129.4
A 12 189 22118 166.15 635 624 129.4
B 5 184 233087 1927.98 633 616 120.6
B 5 172 139217 1149.47 633 616 120.6
B 4 81 100276 826.52 633 616 120.6
C 15 214 236500 1632.14 622 627 144.5
C 3 233 46708 318.86 622 627 144.5
C 1 23 30021 203.39 622 627 144.5
D 1 52 276125 1855.91 616 599 148.5
D 12 233 103211 691.18 616 599 148.5
D 10 199 85765 573.67 616 599 148.5

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