ASTROSAT CZTI

Data Quality Report

Orbit 12196

Creation date: 2024-06-27T16:23:40.604549
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/AS1G08_010T03_9000001800_12196cztM0_level2.evt modeM0/AS1G08_010T03_9000001800_12196cztM0_level2_quad_clean.evt
Size (bytes)472,754,88089,573,760
Size450.9 MB 85.4 MB
Events in quadrant A3,404,091574,412
Events in quadrant B3,834,251571,451
Events in quadrant C3,018,953571,007
Events in quadrant D3,620,044543,958

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144262
B0157091
C0137251
D0154241

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6467991.530849%
B64672644.082264%
C6467580.896861%
D64672253.479202%

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 7348 6469 17 17 0.23% 0.26%
B 7348 6469 125 125 1.70% 1.93%
C 7348 6469 5 5 0.07% 0.08%
D 7348 6469 143 143 1.95% 2.21%

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 1 162 179611 1192.44 739 723 150.0
A 1 178 94709 626.5 739 723 150.0
A 1 161 84525 558.61 739 723 150.0
B 4 239 707852 5075.08 729 713 139.3
B 15 204 166509 1189.9 729 713 139.3
B 11 51 56928 403.45 729 713 139.3
C 15 208 118975 716.09 713 714 165.1
C 5 112 111698 672.03 713 714 165.1
C 13 61 5298 27.76 713 714 165.1
D 1 52 447983 2655.47 701 680 168.4
D 10 50 168292 995.05 701 680 168.4
D 4 95 158292 935.68 701 680 168.4

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