ASTROSAT CZTI

Data Quality Report

Orbit 09355

Creation date: 2024-06-27T15:44:52.305514
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_022T01_9000001322_09355cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09355cztM0_level2_quad_clean.evt
Size (bytes)554,679,36084,075,840
Size529.0 MB 80.2 MB
Events in quadrant A4,687,512512,601
Events in quadrant B3,461,519520,510
Events in quadrant C3,149,671513,421
Events in quadrant D5,011,341498,131

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019369402
B015491288
C015003278
D020477531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01482
C01486
D01482

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71901452.016690%
B72101181.636616%
C7207871.207160%
D71805497.646240%

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 7637 7299 26 26 0.34% 0.36%
B 7637 7313 10 10 0.13% 0.14%
C 7637 7316 0 0 0.00% 0.00%
D 7637 7293 407 407 5.33% 5.58%

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 5 1284553 7652.56 821 800 167.8
A 1 162 71093 419.02 821 800 167.8
A 4 2 44360 259.66 821 800 167.8
B 4 80 70173 436.86 829 806 158.8
B 0 219 53115 329.43 829 806 158.8
B 0 214 43128 266.53 829 806 158.8
C 14 67 10132 50.19 800 801 185.9
C 13 61 6257 29.35 800 801 185.9
C 8 222 4931 22.22 800 801 185.9
D 13 104 1273355 6405.82 761 742 198.7
D 7 46 356202 1789.24 761 742 198.7
D 12 233 168632 845.09 761 742 198.7

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