ASTROSAT CZTI

Data Quality Report

Orbit 47040

Creation date: 2024-06-27T23:31:04.196994
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/AS1C09_005T01_9000006296_47040cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47040cztM0_level2_quad_clean.evt
Size (bytes)709,188,48094,135,680
Size676.3 MB 89.8 MB
Events in quadrant A6,140,310701,429
Events in quadrant B6,918,689583,484
Events in quadrant C3,113,176713,275
Events in quadrant D9,594,157414,594

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226511
B0247441
C0137121
D0328631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62652624.181963%
B6266161825.821896%
C6266911.452282%
D6266253140.392595%

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 7365 6266 23 23 0.31% 0.37%
B 7366 6267 1124 1124 15.26% 17.94%
C 7366 6267 3 3 0.04% 0.05%
D 7366 6266 2195 2195 29.80% 35.03%

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 3253528 21989.21 717 701 147.9
A 9 191 82067 550.03 717 701 147.9
A 10 255 11970 76.18 717 701 147.9
B 3 112 4053474 31577.89 657 636 128.3
B 4 171 109472 848.0 657 636 128.3
B 0 200 84591 654.14 657 636 128.3
C 14 254 308188 1868.57 710 713 164.6
C 1 3 24875 146.84 710 713 164.6
C 14 67 5032 26.25 710 713 164.6
D 1 52 7031942 48317.48 577 558 145.5
D 12 233 75505 515.01 577 558 145.5
D 1 47 66989 456.49 577 558 145.5

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