ASTROSAT CZTI

Data Quality Report

Orbit 20240916_A13_037T05_9000006434_level2

Creation date: 2024-09-21T12:21:55.360826
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/AS1A13_037T05_9000006434cztM0_level2.fits modeM0/AS1A13_037T05_9000006434cztM0_level2_quad_clean.evt
Size (bytes)424,607,040292,193,280
Size404.9 MB 278.7 MB
Events in quadrant A2,424,3561,423,501
Events in quadrant B2,430,6641,481,957
Events in quadrant C2,498,7541,410,278
Events in quadrant D2,095,7461,123,526

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01850240
B01073980
C01005310
D01344890

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0630
B0630
C0620
D0620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011020
B011000
C011020
D011000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4929618523.756897%
B4932910202.067749%
C493202620.531225%
D4931430486.180801%

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 65023 49336 0 0 0.00% 0.00%
B 65023 49347 0 0 0.00% 0.00%
C 65023 49342 0 0 0.00% 0.00%
D 65023 49320 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 15 236 1939 8.33 629 587 162.3
A 7 110 1925 8.24 629 587 162.3
A 14 95 1819 7.59 629 587 162.3
B 2 9 2320 13.11 639 605 130.8
B 2 8 1914 10.01 639 605 130.8
B 5 232 1726 8.57 639 605 130.8
C 3 203 1895 7.37 660 610 174.3
C 3 202 1877 7.27 660 610 174.3
C 1 81 1860 7.17 660 610 174.3
D 12 6 1572 6.03 599 539 171.2
D 7 3 1539 5.84 599 539 171.2
D 3 14 1523 5.74 599 539 171.2

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