ASTROSAT CZTI

Data Quality Report

Orbit 20240627_A13_093T12_9000006314_level2

Creation date: 2024-07-01T08:48:07.808781
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_093T12_9000006314cztM0_level2.fits modeM0/AS1A13_093T12_9000006314cztM0_level2_quad_clean.evt
Size (bytes)460,463,040563,328,000
Size439.1 MB 537.2 MB
Events in quadrant A2,589,2103,333,129
Events in quadrant B2,661,5263,667,061
Events in quadrant C2,713,3603,445,388
Events in quadrant D2,232,7242,874,993

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011060
B011060
C011060
D011060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02454920
B01241490
C01393930
D01632030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54505746913.703330%
B5450619933.656478%
C5450632255.916780%
D54506651211.947309%

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 59866 54496 0 0 0.00% 0.00%
B 59866 54503 0 0 0.00% 0.00%
C 59866 54440 0 0 0.00% 0.00%
D 59866 54048 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 2089 8.22 675 630 177.5
A 14 95 2009 7.77 675 630 177.5
A 0 29 1914 7.23 675 630 177.5
B 2 9 2490 12.95 703 667 140.8
B 2 8 2041 9.76 703 667 140.8
B 3 17 1968 9.24 703 667 140.8
C 3 202 2076 7.58 716 666 186.0
C 3 203 2036 7.37 716 666 186.0
C 1 81 1919 6.74 716 666 186.0
D 15 47 1693 6.18 641 580 180.2
D 6 67 1645 5.91 641 580 180.2
D 10 189 1616 5.75 641 580 180.2

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