ASTROSAT CZTI

Data Quality Report

Orbit 42806

Creation date: 2024-06-27T22:44:27.993506
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_9000005824_42806cztM0_level2.fits modeM0/AS1C06_010T01_9000005824_42806cztM0_level2_quad_clean.evt
Size (bytes)345,421,44088,974,720
Size329.4 MB 84.9 MB
Events in quadrant A2,884,695601,854
Events in quadrant B3,710,582598,721
Events in quadrant C2,830,689595,303
Events in quadrant D2,963,574540,640

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118002
B0144892
C0119032
D0125433

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5097180.353149%
B50972975.826957%
C5097210.412007%
D50961342.629513%

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 7040 5098 5 5 0.07% 0.10%
B 7040 5098 261 261 3.71% 5.12%
C 7040 5098 13 13 0.18% 0.26%
D 7039 5097 115 115 1.63% 2.26%

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 629439 5473.78 561 549 114.9
A 12 189 47729 410.65 561 549 114.9
A 13 6 17782 149.99 561 549 114.9
B 0 229 1235737 11984.31 554 541 103.1
B 4 171 114654 1107.17 554 541 103.1
B 15 35 50016 480.02 554 541 103.1
C 3 233 282795 2193.52 556 561 128.7
C 15 214 207603 1609.13 556 561 128.7
C 7 220 82708 638.44 556 561 128.7
D 12 233 275048 2064.02 550 533 133.0
D 13 249 186637 1399.28 550 533 133.0
D 10 118 137526 1030.02 550 533 133.0

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