ASTROSAT CZTI

Data Quality Report

Orbit 16380

Creation date: 2024-06-27T17:21:50.286322
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/AS1A05_069T04_9000002418_16380cztM0_level2.evt modeM0/AS1A05_069T04_9000002418_16380cztM0_level2_quad_clean.evt
Size (bytes)1,272,885,120198,685,440
Size1.2 GB 189.5 MB
Events in quadrant A10,120,6011,222,830
Events in quadrant B9,548,4231,255,130
Events in quadrant C8,950,6971,215,866
Events in quadrant D8,809,1251,179,329

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0412903
B0390943
C0376493
D0379393

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03380
B03380
C03380
D03380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A165877284.388979%
B165874162.507988%
C165874792.887804%
D165873442.073913%

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 18563 16591 583 583 3.14% 3.51%
B 18563 16590 197 197 1.06% 1.19%
C 18563 16590 82 82 0.44% 0.49%
D 18563 16591 141 141 0.76% 0.85%

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 15 174 2538451 6505.87 1935 1892 389.9
A 15 223 86065 215.89 1935 1892 389.9
A 9 143 33458 80.96 1935 1892 389.9
B 10 16 974435 2625.05 1952 1902 370.5
B 15 35 229569 614.52 1952 1902 370.5
B 0 189 145795 388.39 1952 1902 370.5
C 3 233 1336728 3056.52 1874 1885 436.7
C 14 238 285004 648.28 1874 1885 436.7
C 10 169 22430 47.04 1874 1885 436.7
D 1 52 663194 1425.13 1895 1839 464.1
D 12 218 508606 1092.02 1895 1839 464.1
D 12 110 277447 593.9 1895 1839 464.1

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