ASTROSAT CZTI

Data Quality Report

Orbit 09634

Creation date: 2024-06-27T15:48:41.152302
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_077T01_9000001372_09634cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09634cztM0_level2_quad_clean.evt
Size (bytes)492,416,64097,418,880
Size469.6 MB 92.9 MB
Events in quadrant A3,366,950617,296
Events in quadrant B3,562,803618,460
Events in quadrant C3,279,303609,715
Events in quadrant D4,201,831590,472

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01542
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01505027
B01552122
C01497248
D01769040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7388340.460206%
B7389450.609013%
C7377230.311780%
D73821101.490111%

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 9034 7401 0 0 0.00% 0.00%
B 9034 7401 1 1 0.01% 0.01%
C 9034 7401 0 0 0.00% 0.00%
D 9034 7401 62 62 0.69% 0.84%

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 14 111 24410 132.38 867 847 178.0
A 0 226 8093 40.71 867 847 178.0
A 13 253 7441 37.05 867 847 178.0
B 0 214 94538 551.0 872 849 170.0
B 0 229 33486 191.94 872 849 170.0
B 12 111 18730 105.16 872 849 170.0
C 13 61 6313 27.75 838 843 197.1
C 14 234 6171 27.03 838 843 197.1
C 14 67 2676 9.3 838 843 197.1
D 8 195 200189 996.7 827 809 200.0
D 12 233 161218 801.89 827 809 200.0
D 10 172 157398 782.79 827 809 200.0

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