ASTROSAT CZTI

Data Quality Report

Orbit 03078

Creation date: 2024-06-27T14:24:21.798640
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/AS1G05_237T03_9000000426_03078cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03078cztM0_level2_common_clean.evt
Size (bytes)170,663,04022,037,760
Size162.8 MB 21.0 MB
Events in quadrant A900,740132,095
Events in quadrant B1,583,035132,535
Events in quadrant C1,020,308132,663
Events in quadrant D1,527,503126,644

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040246
B0606510
C044497
D0602115

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A198640.201410%
B198428614.415323%
C1984321.612903%
D198427413.810484%

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 4142 1988 0 0 0.00% 0.00%
B 4142 1988 5 5 0.12% 0.25%
C 4142 1988 20 20 0.48% 1.01%
D 4142 1988 214 214 5.17% 10.76%

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 8 15 29528 626.74 220 216 46.8
A 0 31 5847 120.4 220 216 46.8
A 0 50 5235 107.31 220 216 46.8
B 4 81 504095 11671.77 217 212 43.2
B 15 204 157645 3646.72 217 212 43.2
B 0 219 24161 554.75 217 212 43.2
C 14 223 137933 2694.01 213 214 51.1
C 6 80 25284 490.41 213 214 51.1
C 1 16 9717 185.89 213 214 51.1
D 1 20 494747 10034.16 197 191 49.3
D 2 152 200872 4071.66 197 191 49.3
D 10 172 17161 344.31 197 191 49.3

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
Veto Counter