ASTROSAT CZTI

Data Quality Report

Orbit 49699

Creation date: 2024-12-11T08:14:27.684014
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/AS1T05_233T01_9000006438_49699cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49699cztM0_level2_quad_clean.evt
Size (bytes)1,348,951,68049,743,360
Size1.3 GB 47.4 MB
Events in quadrant A18,323,476251,722
Events in quadrant B6,807,783669,067
Events in quadrant C6,394,6383,556
Events in quadrant D17,849,50069,183

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0593600
B0250800
C0241530
D0579560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7203717799.639039%
B7204111115.421988%
C72047204100.000000%
D72047204100.000000%

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 7202 7202 7034 7034 97.67% 97.67%
B 7204 7204 948 948 13.16% 13.16%
C 7203 7203 0 0 0.00% 0.00%
D 7203 7203 6642 6642 92.21% 92.21%

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 10 83 5967608 61676.91 300 288 96.8
A 3 130 3157975 32637.16 300 288 96.8
A 0 98 2665486 27546.9 300 288 96.8
B 3 232 1731574 11399.82 702 681 151.8
B 4 206 583236 3836.76 702 681 151.8
B 10 44 387046 2544.64 702 681 151.8
C 15 180 1379852 160338.15 15 14 8.6
C 15 190 1139363 132393.16 15 14 8.6
C 15 181 775325 90091.69 15 14 8.6
D 15 122 6151104 91023.07 105 96 67.6
D 15 40 2618737 38750.84 105 96 67.6
D 15 168 2246648 33244.64 105 96 67.6

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