ASTROSAT CZTI

Data Quality Report

Orbit 09296

Creation date: 2024-06-27T15:44:06.635697
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/AS1G07_077T03_9000001310_09296cztM0_level2.evt modeM0/AS1G07_077T03_9000001310_09296cztM0_level2_quad_clean.evt
Size (bytes)566,038,080104,662,080
Size539.8 MB 99.8 MB
Events in quadrant A4,728,861649,083
Events in quadrant B3,907,425658,131
Events in quadrant C3,752,034660,749
Events in quadrant D4,206,994641,321

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019608294
B017316218
C017043188
D018521218

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01684
B01682
C01680
D01682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80392533.147158%
B80522252.794337%
C80601241.538462%
D80542202.731562%

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 9171 8138 16 16 0.17% 0.20%
B 9171 8145 6 6 0.07% 0.07%
C 9171 8143 6 6 0.07% 0.07%
D 9171 8143 90 90 0.98% 1.11%

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 8 5 854870 4327.13 954 932 197.3
A 15 239 157922 795.51 954 932 197.3
A 1 162 23313 113.41 954 932 197.3
B 0 214 71923 384.21 963 936 184.8
B 4 80 46744 247.93 963 936 184.8
B 12 111 20770 107.35 963 936 184.8
C 10 22 32329 143.72 944 948 218.3
C 14 67 30429 135.02 944 948 218.3
C 13 61 7027 27.84 944 948 218.3
D 12 227 204604 867.03 930 904 234.9
D 12 233 156627 662.82 930 904 234.9
D 1 52 125558 530.58 930 904 234.9

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