ASTROSAT CZTI

Data Quality Report

Orbit 33393

Creation date: 2024-06-27T20:48:19.416097
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/AS1A10_064T02_9000004788_33393cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33393cztM0_level2_quad_clean.evt
Size (bytes)451,693,44085,432,320
Size430.8 MB 81.5 MB
Events in quadrant A2,548,698566,730
Events in quadrant B3,371,779586,150
Events in quadrant C3,107,317547,609
Events in quadrant D4,290,951514,500

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107802
B0134001
C0122241
D0164201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532250.093950%
B53222404.509583%
C53221633.062758%
D53223165.937617%

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 7325 5323 0 0 0.00% 0.00%
B 7325 5323 155 155 2.12% 2.91%
C 7325 5323 146 146 1.99% 2.74%
D 7325 5323 297 297 4.05% 5.58%

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 15 169 9953 71.01 655 645 131.1
A 13 254 8404 59.19 655 645 131.1
A 13 6 6352 43.54 655 645 131.1
B 5 172 634864 5257.02 645 630 120.6
B 5 255 72148 592.8 645 630 120.6
B 0 219 56889 466.32 645 630 120.6
C 0 10 404934 2815.49 623 629 143.6
C 15 214 225865 1568.49 623 629 143.6
C 15 159 25482 173.07 623 629 143.6
D 8 195 530404 3525.84 612 594 150.3
D 12 233 369113 2452.46 612 594 150.3
D 12 6 355622 2362.68 612 594 150.3

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