ASTROSAT CZTI

Data Quality Report

Orbit 03006

Creation date: 2024-06-27T14:23:21.960990
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/AS1G05_238T02_9000000420_03006cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03006cztM0_level2_quad_clean.evt
Size (bytes)514,166,40038,033,280
Size490.3 MB 36.3 MB
Events in quadrant A5,526,632196,501
Events in quadrant B3,599,147204,684
Events in quadrant C3,594,247196,968
Events in quadrant D2,508,226197,559

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198433
B0141392
C0143242
D0112892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5071100419.798856%
B5071551.084599%
C50712735.383554%
D5071460.907119%

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 7226 5072 860 860 11.90% 16.96%
B 7226 5072 30 30 0.42% 0.59%
C 7226 5072 230 230 3.18% 4.53%
D 7226 5072 32 32 0.44% 0.63%

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 9 3127390 29628.47 517 507 105.5
A 0 50 140694 1328.33 517 507 105.5
A 14 249 88812 836.73 517 507 105.5
B 8 3 1305354 11907.23 567 555 109.6
B 2 249 33524 300.87 567 555 109.6
B 0 219 14450 126.8 567 555 109.6
C 0 219 1289549 10355.6 530 531 124.5
C 1 192 129414 1035.41 530 531 124.5
C 6 80 77739 620.27 530 531 124.5
D 12 112 169827 1279.42 538 523 132.3
D 7 80 90021 676.33 538 523 132.3
D 13 114 88850 667.48 538 523 132.3

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
Veto Counter