ASTROSAT CZTI

Data Quality Report

Orbit 10314

Creation date: 2024-06-27T15:57:47.615760
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/AS1A03_124T01_9000001486_10314cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10314cztM0_level2_quad_clean.evt
Size (bytes)396,915,84079,441,920
Size378.5 MB 75.8 MB
Events in quadrant A2,761,988498,808
Events in quadrant B2,791,655467,800
Events in quadrant C2,605,624507,546
Events in quadrant D3,459,558520,208

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02907517041
B03453322679
C02908817163
D03447519896

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02914
B03015
C03015
D03015

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0298163
B0297168
C0298167
D0286154

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5776250.432825%
B5436340.625460%
C5891140.237651%
D6373470.737486%

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 8779 6882 0 0 0.00% 0.00%
B 8780 6553 1 1 0.01% 0.02%
C 8780 6942 0 0 0.00% 0.00%
D 8780 6904 6 6 0.07% 0.09%

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 15 99045 719.8 664 651 136.7
A 8 5 81921 594.53 664 651 136.7
A 3 1 13769 95.96 664 651 136.7
B 4 239 270703 2215.2 629 615 121.9
B 0 214 35019 282.17 629 615 121.9
B 11 51 20661 164.41 629 615 121.9
C 14 234 10913 65.85 665 669 155.6
C 13 61 4880 27.07 665 669 155.6
C 8 222 2053 8.9 665 669 155.6
D 1 52 500531 2895.16 708 687 172.6
D 8 195 143668 828.17 708 687 172.6
D 2 14 45645 260.4 708 687 172.6

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