ASTROSAT CZTI

Data Quality Report

Orbit 27583

Creation date: 2024-06-27T19:41:45.161417
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/AS1C05_019T04_9000003974_27583cztM0_level2.evt modeM0/AS1C05_019T04_9000003974_27583cztM0_level2_quad_clean.evt
Size (bytes)1,066,527,360251,585,280
Size1017.1 MB 239.9 MB
Events in quadrant A7,008,3901,675,831
Events in quadrant B7,835,2731,692,373
Events in quadrant C7,177,0861,631,462
Events in quadrant D9,252,4031,573,698

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0309140
B0330770
C0310500
D0377490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A151711220.804166%
B151712281.502867%
C151712301.516050%
D151705763.796968%

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 17061 15174 3 3 0.02% 0.02%
B 17061 15174 70 70 0.41% 0.46%
C 17061 15174 0 0 0.00% 0.00%
D 17060 15173 367 367 2.15% 2.42%

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 27845 72.16 1807 1767 361.4
A 8 192 24408 62.65 1807 1767 361.4
A 3 137 17694 44.07 1807 1767 361.4
B 10 245 474565 1386.12 1794 1746 341.1
B 15 32 245940 715.88 1794 1746 341.1
B 12 111 43105 121.25 1794 1746 341.1
C 14 238 280913 686.64 1740 1745 406.6
C 15 208 63481 151.85 1740 1745 406.6
C 2 16 37929 89.0 1740 1745 406.6
D 1 52 2174644 5293.62 1730 1679 410.5
D 6 112 276303 669.02 1730 1679 410.5
D 2 250 146736 353.38 1730 1679 410.5

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