ASTROSAT CZTI

Data Quality Report

Orbit 48002

Creation date: 2024-08-13T14:12:16.956377
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_062T02_9000006384_48002cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_48002cztM0_level2_quad_clean.evt
Size (bytes)497,056,320120,214,080
Size474.0 MB 114.6 MB
Events in quadrant A7,389,808793,789
Events in quadrant B3,307,112823,094
Events in quadrant C3,598,049779,638
Events in quadrant D3,513,147713,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272080
B0154070
C0163260
D0163860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7621430.564230%
B7622110.144319%
C7622931.220152%
D7622700.918394%

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 7621 7621 9 9 0.12% 0.12%
B 7622 7622 1 1 0.01% 0.01%
C 7622 7622 85 85 1.12% 1.12%
D 7622 7622 67 67 0.88% 0.88%

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 4091975 23778.2 815 797 172.1
A 0 31 122987 710.18 815 797 172.1
A 13 248 12982 70.82 815 797 172.1
B 7 221 28784 172.17 817 790 162.6
B 0 197 25234 150.34 817 790 162.6
B 12 111 20806 123.1 817 790 162.6
C 14 254 323759 1678.03 807 811 192.5
C 1 3 68825 353.4 807 811 192.5
C 12 2 20729 103.49 807 811 192.5
D 11 224 241482 1196.03 807 782 201.2
D 2 249 60510 296.78 807 782 201.2
D 5 171 37056 180.24 807 782 201.2

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