ASTROSAT CZTI

Data Quality Report

Orbit 45414

Creation date: 2024-06-27T23:11:21.747337
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_038T03_9000006058_45414cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45414cztM0_level2_quad_clean.evt
Size (bytes)438,272,64089,732,160
Size418.0 MB 85.6 MB
Events in quadrant A4,744,516606,635
Events in quadrant B3,665,726608,555
Events in quadrant C2,630,783609,396
Events in quadrant D4,760,095511,671

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180551
B0145901
C0116791
D0178101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54352093.845446%
B54354007.359706%
C5435661.214351%
D543558510.763569%

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 6560 5435 65 65 0.99% 1.20%
B 6560 5435 225 225 3.43% 4.14%
C 6560 5435 22 22 0.34% 0.40%
D 6560 5435 551 551 8.40% 10.14%

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 2100123 16218.48 622 609 129.5
A 9 191 218140 1680.4 622 609 129.5
A 13 248 10448 76.01 622 609 129.5
B 4 170 605784 5019.88 615 598 120.6
B 15 201 496083 4109.94 615 598 120.6
B 0 171 56837 466.49 615 598 120.6
C 14 254 123290 836.62 620 625 146.6
C 0 239 43228 290.57 620 625 146.6
C 11 16 19143 126.3 620 625 146.6
D 11 176 1207991 8086.34 597 580 149.3
D 13 249 535598 3583.15 597 580 149.3
D 11 241 247922 1656.51 597 580 149.3

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