ASTROSAT CZTI

Data Quality Report

Orbit 37584

Creation date: 2024-06-27T21:41:51.692107
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_053T01_9000005338_37584cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37584cztM0_level2_quad_clean.evt
Size (bytes)490,524,48090,455,040
Size467.8 MB 86.3 MB
Events in quadrant A3,313,699578,535
Events in quadrant B3,594,048578,978
Events in quadrant C3,226,669588,127
Events in quadrant D4,284,842545,102

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136173
B0147082
C0133972
D0171462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6429230.357754%
B64291552.410950%
C6429130.202209%
D64292674.153056%

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 9084 6431 9 9 0.10% 0.14%
B 9084 6431 119 119 1.31% 1.85%
C 9084 6431 8 8 0.09% 0.12%
D 9084 6431 289 289 3.18% 4.49%

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 349752 2350.07 730 715 148.5
A 15 222 43306 286.77 730 715 148.5
A 12 189 37437 247.25 730 715 148.5
B 5 172 394849 2841.6 720 701 138.7
B 5 255 111310 797.43 720 701 138.7
B 0 230 58084 413.7 720 701 138.7
C 15 214 279652 1683.85 712 717 165.7
C 14 254 86425 517.39 712 717 165.7
C 0 10 50278 299.18 712 717 165.7
D 2 249 590934 3415.97 700 680 172.8
D 10 253 451168 2607.1 700 680 172.8
D 1 47 161437 930.35 700 680 172.8

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