ASTROSAT CZTI

Data Quality Report

Orbit 20240706_A13_093T30_9000006328_level2

Creation date: 2024-07-08T10:36:41.019870
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/AS1A13_093T30_9000006328cztM0_level2.fits modeM0/AS1A13_093T30_9000006328cztM0_level2_quad_clean.evt
Size (bytes)78,442,56086,832,000
Size74.8 MB 82.8 MB
Events in quadrant A467,872534,040
Events in quadrant B466,580543,480
Events in quadrant C478,770518,232
Events in quadrant D374,804445,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320210
B0180730
C0173070
D0239020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84594365.154274%
B84591221.442251%
C8459250.295543%
D845991910.864168%

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 10904 8459 0 0 0.00% 0.00%
B 10904 8449 0 0 0.00% 0.00%
C 10904 8459 0 0 0.00% 0.00%
D 10904 8081 0 0 0.00% 0.00%

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 7 110 358 7.4 122 115 32.8
A 14 95 349 7.13 122 115 32.8
A 9 19 342 6.91 122 115 32.8
B 2 9 476 13.44 123 118 26.6
B 2 8 375 9.65 123 118 26.6
B 5 128 328 7.88 123 118 26.6
C 3 202 372 7.3 126 119 34.7
C 3 203 363 7.04 126 119 34.7
C 1 81 357 6.87 126 119 34.7
D 10 114 301 6.55 107 98 31.0
D 10 113 296 6.39 107 98 31.0
D 15 47 280 5.87 107 98 31.0

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