ASTROSAT CZTI

Data Quality Report

Orbit 05118

Creation date: 2024-06-27T14:51:33.067305
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_230T05_9000000648_05118cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05118cztM0_level2_quad_clean.evt
Size (bytes)1,027,198,080149,109,120
Size979.6 MB 142.2 MB
Events in quadrant A6,037,799914,204
Events in quadrant B7,737,343932,626
Events in quadrant C5,873,399924,210
Events in quadrant D10,559,623824,674

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02737623
B03209325
C02698623
D04068825

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A133131230.923909%
B133115444.086845%
C13312570.428185%
D13315147311.062711%

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 15442 13325 21 21 0.14% 0.16%
B 15442 13325 293 293 1.90% 2.20%
C 15442 13325 0 0 0.00% 0.00%
D 15442 13324 1097 1097 7.10% 8.23%

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 0 50 133216 424.86 1520 1486 310.1
A 13 14 35317 109.11 1520 1486 310.1
A 0 226 15747 45.99 1520 1486 310.1
B 8 3 1080540 3689.02 1524 1486 292.5
B 10 16 296425 1008.33 1524 1486 292.5
B 0 219 162448 550.29 1524 1486 292.5
C 12 4 21517 57.65 1489 1495 347.3
C 8 128 15817 41.24 1489 1495 347.3
C 13 61 12024 30.32 1489 1495 347.3
D 13 235 2558009 7371.16 1409 1365 346.8
D 2 33 1053947 3034.74 1409 1365 346.8
D 12 22 585324 1683.63 1409 1365 346.8

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