ASTROSAT CZTI

Data Quality Report

Orbit 47292

Creation date: 2024-06-27T23:33:49.853534
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_025T01_9000006312_47292cztM0_level2.fits modeM0/AS1A13_025T01_9000006312_47292cztM0_level2_quad_clean.evt
Size (bytes)546,566,400116,285,760
Size521.2 MB 110.9 MB
Events in quadrant A8,163,451756,279
Events in quadrant B3,730,150802,821
Events in quadrant C3,180,133756,057
Events in quadrant D4,586,635692,147

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294090
B0160450
C0150301
D0192920

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73773775.110479%
B7377791.070896%
C737770.094890%
D73781562.114394%

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 7377 7377 166 166 2.25% 2.25%
B 7377 7377 33 33 0.45% 0.45%
C 7378 7378 0 0 0.00% 0.00%
D 7378 7378 138 138 1.87% 1.87%

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 3683194 21650.6 814 797 170.1
A 14 235 694653 4079.52 814 797 170.1
A 15 235 350086 2053.64 814 797 170.1
B 0 200 300517 1851.09 820 794 161.9
B 4 171 69571 424.77 820 794 161.9
B 0 218 25064 149.89 820 794 161.9
C 0 207 16203 81.0 800 804 190.1
C 3 233 13290 65.68 800 804 190.1
C 14 67 11145 54.4 800 804 190.1
D 6 112 1408882 6942.86 801 774 202.8
D 2 234 44320 214.71 801 774 202.8
D 1 50 23880 113.93 801 774 202.8

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