ASTROSAT CZTI

Data Quality Report

Orbit 43124

Creation date: 2024-06-27T22:48:19.050587
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_154T01_9000005850_43124cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43124cztM0_level2_quad_clean.evt
Size (bytes)410,279,04081,774,720
Size391.3 MB 78.0 MB
Events in quadrant A5,230,775487,352
Events in quadrant B2,338,590585,693
Events in quadrant C2,347,956558,021
Events in quadrant D4,867,432482,496

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189722
B0107202
C0104362
D0180282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A517090017.408124%
B5170330.638298%
C517030.058027%
D51714298.296268%

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 7054 5171 711 711 10.08% 13.75%
B 7054 5171 19 19 0.27% 0.37%
C 7054 5171 2 2 0.03% 0.04%
D 7055 5172 339 339 4.81% 6.55%

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 15 222 1929049 18643.05 506 496 103.4
A 15 237 824949 7969.87 506 496 103.4
A 10 83 473364 4571.15 506 496 103.4
B 5 255 109741 1043.07 547 533 104.7
B 0 229 52352 494.94 547 533 104.7
B 3 112 22107 206.06 547 533 104.7
C 15 214 217594 1735.21 535 539 125.1
C 15 111 26432 207.0 535 539 125.1
C 14 254 5433 39.12 535 539 125.1
D 1 52 2025727 15918.19 521 505 127.2
D 12 233 626683 4921.74 521 505 127.2
D 13 171 92198 720.7 521 505 127.2

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