ASTROSAT CZTI

Data Quality Report

Orbit 15193

Creation date: 2024-06-27T17:05:04.779527
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/AS1T02_068T01_9000002238_15193cztM0_level2.evt modeM0/AS1T02_068T01_9000002238_15193cztM0_level2_quad_clean.evt
Size (bytes)510,727,68089,144,640
Size487.1 MB 85.0 MB
Events in quadrant A2,982,176596,784
Events in quadrant B5,742,623516,489
Events in quadrant C3,344,146582,512
Events in quadrant D2,975,464568,341

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129782
B0211791
C0138661
D0132121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6233440.705920%
B6233110817.776352%
C6233330.529440%
D6233610.978662%

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 7249 6234 0 0 0.00% 0.00%
B 7249 6235 820 820 11.31% 13.15%
C 7249 6235 0 0 0.00% 0.00%
D 7249 6235 20 20 0.28% 0.32%

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 12 189 68064 440.4 757 741 152.9
A 0 226 6883 40.18 757 741 152.9
A 12 194 5610 31.85 757 741 152.9
B 3 112 2924096 22098.38 689 672 132.3
B 4 48 44878 334.16 689 672 132.3
B 3 64 18102 131.75 689 672 132.3
C 3 233 472597 2741.82 736 739 172.1
C 13 61 5293 26.46 736 739 172.1
C 7 247 2786 11.89 736 739 172.1
D 10 70 57115 315.05 737 716 179.0
D 13 172 27490 149.56 737 716 179.0
D 2 120 26480 143.92 737 716 179.0

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