ASTROSAT CZTI

Data Quality Report

Orbit 47973

Creation date: 2024-08-11T15:20:04.055109
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_062T02_9000006384_47973cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47973cztM0_level2_quad_clean.evt
Size (bytes)482,181,120119,301,120
Size459.8 MB 113.8 MB
Events in quadrant A7,180,112785,091
Events in quadrant B3,215,673814,064
Events in quadrant C3,184,153780,991
Events in quadrant D3,683,256707,375

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265580
B0151990
C0152770
D0166050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7545660.874751%
B754560.079523%
C754550.066269%
D7546510.675855%

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 7545 7545 28 28 0.37% 0.37%
B 7545 7545 0 0 0.00% 0.00%
C 7545 7545 2 2 0.03% 0.03%
D 7546 7546 47 47 0.62% 0.62%

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 4003495 23789.7 805 787 168.3
A 0 31 63916 375.2 805 787 168.3
A 3 137 9433 51.39 805 787 168.3
B 12 111 20720 124.43 807 782 160.2
B 11 111 19261 115.32 807 782 160.2
B 14 111 18149 108.38 807 782 160.2
C 14 254 39869 205.51 800 803 190.1
C 12 2 18775 94.55 800 803 190.1
C 13 61 5314 23.73 800 803 190.1
D 2 249 355421 1763.19 797 774 201.1
D 11 224 210633 1043.35 797 774 201.1
D 14 34 41067 200.32 797 774 201.1

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