ASTROSAT CZTI

Data Quality Report

Orbit 37613

Creation date: 2024-06-27T21:42:13.556208
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/AS1A11_075T01_9000005342_37613cztM0_level2.evt modeM0/AS1A11_075T01_9000005342_37613cztM0_level2_quad_clean.evt
Size (bytes)428,218,56074,848,320
Size408.4 MB 71.4 MB
Events in quadrant A2,923,224461,130
Events in quadrant B3,501,411472,801
Events in quadrant C2,839,273476,419
Events in quadrant D3,306,527446,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121913
B0144152
C0120142
D0140262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A585280.136705%
B58522985.092276%
C585290.153794%
D58521382.358168%

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 7165 5853 2 2 0.03% 0.03%
B 7165 5852 242 242 3.38% 4.14%
C 7165 5852 10 10 0.14% 0.17%
D 7165 5853 94 94 1.31% 1.61%

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 314963 2360.11 658 644 133.2
A 9 143 28102 206.17 658 644 133.2
A 12 189 14898 107.03 658 644 133.2
B 5 172 665536 5333.0 642 623 124.7
B 0 189 112713 899.03 642 623 124.7
B 5 200 66035 524.64 642 623 124.7
C 15 214 271030 1803.63 641 645 149.9
C 15 208 24693 160.41 641 645 149.9
C 0 10 24034 156.02 641 645 149.9
D 2 250 307567 1998.71 633 616 153.6
D 2 153 123195 798.17 633 616 153.6
D 13 249 90910 587.95 633 616 153.6

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