ASTROSAT CZTI

Data Quality Report

Orbit 10212

Creation date: 2024-06-27T15:56:26.041778
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/AS1A03_099T01_9000001472_10212cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10212cztM0_level2_quad_clean.evt
Size (bytes)911,998,080160,640,640
Size869.7 MB 153.2 MB
Events in quadrant A6,848,830987,118
Events in quadrant B6,479,8871,010,341
Events in quadrant C5,839,434999,530
Events in quadrant D7,554,757952,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0293244
B0280543
C0268403
D0314699

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132482672.015399%
B132481200.905797%
C13248490.369867%
D132461961.479692%

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 15078 13251 143 143 0.95% 1.08%
B 15078 13251 12 12 0.08% 0.09%
C 15078 13251 0 0 0.00% 0.00%
D 15078 13252 130 130 0.86% 0.98%

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 15 223 506671 1634.11 1528 1496 309.1
A 15 239 204698 657.31 1528 1496 309.1
A 4 2 157559 504.82 1528 1496 309.1
B 4 239 148766 499.33 1549 1512 294.9
B 11 51 83972 279.62 1549 1512 294.9
B 0 214 83711 278.73 1549 1512 294.9
C 13 61 11297 28.2 1491 1499 347.4
C 14 234 10262 25.22 1491 1499 347.4
C 4 175 8671 20.64 1491 1499 347.4
D 8 195 712417 1843.11 1460 1429 385.8
D 1 52 588098 1520.83 1460 1429 385.8
D 13 104 180705 464.74 1460 1429 385.8

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