ASTROSAT CZTI

Data Quality Report

Orbit 33997

Creation date: 2024-06-27T20:55:11.777604
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/AS1A11_106T03_9000004864_33997cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_33997cztM0_level2_quad_clean.evt
Size (bytes)723,775,680103,288,320
Size690.2 MB 98.5 MB
Events in quadrant A4,157,626653,623
Events in quadrant B4,583,885662,697
Events in quadrant C5,075,763648,599
Events in quadrant D7,556,674601,532

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178623
B0189432
C0201472
D0281542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8082170.210344%
B80821231.521901%
C80821932.388023%
D80825326.582529%

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 11156 8084 0 0 0.00% 0.00%
B 11156 8084 60 60 0.54% 0.74%
C 11156 8084 174 174 1.56% 2.15%
D 11156 8084 501 501 4.49% 6.20%

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 15 169 501311 2673.36 937 918 187.2
A 13 6 17897 90.71 937 918 187.2
A 10 83 17705 89.68 937 918 187.2
B 5 172 185892 1045.8 929 905 176.9
B 0 189 142048 797.93 929 905 176.9
B 0 190 121832 683.64 929 905 176.9
C 4 254 539928 2611.5 897 907 206.4
C 15 214 341783 1651.51 897 907 206.4
C 0 10 256616 1238.88 897 907 206.4
D 8 195 1805606 7684.24 878 859 234.9
D 13 249 495923 2107.88 878 859 234.9
D 12 6 490801 2086.07 878 859 234.9

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