ASTROSAT CZTI

Data Quality Report

Orbit 10438

Creation date: 2024-06-27T15:59:52.200587
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/AS1G07_066T01_9000001510_10438cztM0_level2.evt modeM0/AS1G07_066T01_9000001510_10438cztM0_level2_quad_clean.evt
Size (bytes)759,689,280137,327,040
Size724.5 MB 131.0 MB
Events in quadrant A5,352,298732,634
Events in quadrant B5,055,133851,011
Events in quadrant C4,774,253936,979
Events in quadrant D7,149,239947,539

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0524275
B0524287
C0524285
D0508262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04721
B05226
C05226
D05024

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07972458692
B06540644164
C05217630668
D06788339137

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81421261.547531%
B9494920.969033%
C10620260.244821%
D11223540.481155%

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 15446 10130 0 0 0.00% 0.00%
B 15445 11399 0 0 0.00% 0.00%
C 15447 12329 0 0 0.00% 0.00%
D 15447 12309 0 0 0.00% 0.00%

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 13 251 1480787 7686.79 942 919 192.5
A 3 80 211997 1096.39 942 919 192.5
A 15 174 17931 88.36 942 919 192.5
B 4 239 569369 2705.45 1105 1079 210.1
B 0 214 80558 378.37 1105 1079 210.1
B 11 51 47274 219.92 1105 1079 210.1
C 14 234 33145 114.05 1213 1220 279.9
C 14 67 9315 28.92 1213 1220 279.9
C 13 61 9148 28.32 1213 1220 279.9
D 8 195 1039629 3449.08 1261 1226 301.1
D 1 255 397619 1316.63 1261 1226 301.1
D 1 20 300629 994.47 1261 1226 301.1

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