ASTROSAT CZTI

Data Quality Report

Orbit 05313

Creation date: 2024-06-27T14:53:48.387945
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/AS1G05_240T01_9000000674_05313cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05313cztM0_level2_quad_clean.evt
Size (bytes)458,729,28081,659,520
Size437.5 MB 77.9 MB
Events in quadrant A3,111,126505,666
Events in quadrant B3,662,636518,489
Events in quadrant C3,228,474504,312
Events in quadrant D3,431,748473,878

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139773
B0152822
C0140452
D0150222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751420.622130%
B67511151.703451%
C6751430.636943%
D67511031.525700%

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 7931 6753 0 0 0.00% 0.00%
B 7931 6753 47 47 0.59% 0.70%
C 7931 6753 0 0 0.00% 0.00%
D 7931 6753 64 64 0.81% 0.95%

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 0 50 11180 63.99 798 782 162.5
A 0 247 8969 50.38 798 782 162.5
A 0 226 8545 47.77 798 782 162.5
B 10 16 428877 2774.88 811 792 154.3
B 4 48 36707 232.8 811 792 154.3
B 15 54 22724 142.17 811 792 154.3
C 1 16 139656 756.75 791 795 183.5
C 13 61 6395 30.52 791 795 183.5
C 3 202 1931 6.19 791 795 183.5
D 2 14 252305 1321.13 777 753 190.4
D 2 136 107688 561.62 777 753 190.4
D 8 195 69616 361.66 777 753 190.4

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