ASTROSAT CZTI

Data Quality Report

Orbit 24214

Creation date: 2024-06-27T19:03:32.635059
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/AS1A07_010T12_9000003582_24214cztM0_level2.evt modeM0/AS1A07_010T12_9000003582_24214cztM0_level2_quad_clean.evt
Size (bytes)509,970,24083,249,280
Size486.3 MB 79.4 MB
Events in quadrant A3,314,867522,601
Events in quadrant B3,431,862536,647
Events in quadrant C3,483,197515,003
Events in quadrant D4,772,634491,959

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137711
B0141671
C0143321
D0188111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6519430.659610%
B6519610.935726%
C6519891.365240%
D65191382.116889%

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 7744 6520 0 0 0.00% 0.00%
B 7744 6519 2 2 0.03% 0.03%
C 7744 6519 0 0 0.00% 0.00%
D 7744 6519 69 69 0.89% 1.06%

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 13 254 10559 57.15 858 841 170.1
A 0 226 7359 38.33 858 841 170.1
A 3 137 6931 35.81 858 841 170.1
B 0 229 26760 162.62 863 843 159.4
B 12 111 18297 109.52 863 843 159.4
B 11 111 16463 98.01 863 843 159.4
C 14 238 136758 712.98 835 842 190.6
C 7 247 32892 168.13 835 842 190.6
C 2 16 29969 152.79 835 842 190.6
D 8 195 787844 3966.2 832 810 198.4
D 7 238 735083 3700.31 832 810 198.4
D 1 52 50421 250.01 832 810 198.4

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