ASTROSAT CZTI

Data Quality Report

Orbit 20230505_A12_032T01_9000005598_level2

Creation date: 2023-05-06T15:09:04.622316
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/AS1A12_032T01_9000005598cztM0_level2.fits modeM0/AS1A12_032T01_9000005598cztM0_level2_quad_clean.evt
Size (bytes)117,077,76083,335,680
Size111.7 MB 79.5 MB
Events in quadrant A730,668453,000
Events in quadrant B690,148449,179
Events in quadrant C700,184424,882
Events in quadrant D622,652393,179

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02360
B02360
C02360
D02360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263870
B0256700
C0244850
D0261270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11600230.198276%
B116001951.681034%
C11600800.689655%
D116001281.103448%

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 15723 11599 0 0 0.00% 0.00%
B 15723 11599 0 0 0.00% 0.00%
C 15723 11599 0 0 0.00% 0.00%
D 15723 11596 0 0 0.00% 0.00%

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 7 110 607 8.74 190 180 48.9
A 14 95 601 8.62 190 180 48.9
A 9 19 599 8.58 190 180 48.9
B 2 9 568 10.42 182 175 37.7
B 2 8 500 8.62 182 175 37.7
B 3 80 477 8.01 182 175 37.7
C 3 203 549 7.71 185 174 48.6
C 1 81 543 7.59 185 174 48.6
C 3 202 540 7.53 185 174 48.6
D 7 3 477 6.53 177 163 48.1
D 10 189 458 6.13 177 163 48.1
D 10 113 441 5.78 177 163 48.1

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