ASTROSAT CZTI

Data Quality Report

Orbit 12030

Creation date: 2024-06-27T16:21:25.947164
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/AS1A04_044T01_9000001782_12030cztM0_level2.evt modeM0/AS1A04_044T01_9000001782_12030cztM0_level2_quad_clean.evt
Size (bytes)532,486,08089,432,640
Size507.8 MB 85.3 MB
Events in quadrant A3,908,694567,274
Events in quadrant B3,559,464577,535
Events in quadrant C3,077,803560,949
Events in quadrant D5,119,866529,506

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160883
B0149832
C0139302
D0199932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67912453.607716%
B67911291.899573%
C6791180.265057%
D67915317.819172%

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 7727 6792 116 116 1.50% 1.71%
B 7727 6792 20 20 0.26% 0.29%
C 7727 6793 0 0 0.00% 0.00%
D 7727 6793 457 457 5.91% 6.73%

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 13 248 383440 2342.57 800 787 163.3
A 7 16 119837 728.81 800 787 163.3
A 1 162 112180 681.94 800 787 163.3
B 4 239 244668 1551.9 816 796 157.1
B 0 85 72808 458.25 816 796 157.1
B 15 204 59708 374.89 816 796 157.1
C 13 61 5630 26.14 789 793 185.0
C 3 202 1907 6.02 789 793 185.0
C -1 -1 -1 -1.0 789 793 185.0
D 1 52 2099874 11592.34 758 739 181.1
D 10 50 30890 166.51 758 739 181.1
D 13 122 29227 157.32 758 739 181.1

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