ASTROSAT CZTI

Data Quality Report

Orbit 46668

Creation date: 2024-06-27T23:26:15.191865
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_092T18_9000006248_46668cztM0_level2.fits modeM0/AS1A13_092T18_9000006248_46668cztM0_level2_quad_clean.evt
Size (bytes)577,520,640113,250,240
Size550.8 MB 108.0 MB
Events in quadrant A6,724,357752,256
Events in quadrant B4,543,263771,942
Events in quadrant C3,369,828751,735
Events in quadrant D6,171,937642,213

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245820
B0185770
C0154340
D0234380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73401552.111717%
B73401712.329700%
C7340220.299728%
D73406218.460490%

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 7340 7340 88 88 1.20% 1.20%
B 7340 7340 71 71 0.97% 0.97%
C 7340 7340 20 20 0.27% 0.27%
D 7340 7340 531 531 7.23% 7.23%

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 10 83 3391580 20560.07 786 770 164.9
A 15 192 191627 1157.26 786 770 164.9
A 9 191 60321 361.09 786 770 164.9
B 4 171 410796 2629.59 783 757 155.9
B 0 189 401211 2568.13 783 757 155.9
B 0 198 191331 1222.16 783 757 155.9
C 15 208 220499 1191.36 774 777 184.4
C 1 241 51596 275.55 774 777 184.4
C 14 254 25270 132.8 774 777 184.4
D 1 52 1626701 8465.7 753 727 192.1
D 12 1 654604 3404.44 753 727 192.1
D 8 176 220854 1146.1 753 727 192.1

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