ASTROSAT CZTI

Data Quality Report

Orbit 04203

Creation date: 2024-06-27T14:38:44.913599
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_240T01_9000000536_04203cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04203cztM0_level2_quad_clean.evt
Size (bytes)683,677,44084,435,840
Size652.0 MB 80.5 MB
Events in quadrant A6,380,062478,117
Events in quadrant B5,402,234503,400
Events in quadrant C4,465,222503,701
Events in quadrant D3,891,752490,895

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A024708211
B021888131
C019244104
D01780970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83308019.615846%
B83424985.969791%
C83461672.000959%
D8353460.550700%

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 8877 8384 483 483 5.44% 5.76%
B 8877 8388 231 231 2.60% 2.75%
C 8877 8388 92 92 1.04% 1.10%
D 8877 8388 9 9 0.10% 0.11%

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 0 50 2132071 10855.51 952 928 196.3
A 15 234 242301 1229.49 952 928 196.3
A 5 113 135212 684.01 952 928 196.3
B 3 0 1409144 7366.46 984 958 191.2
B 15 204 76229 393.76 984 958 191.2
B 8 3 46542 238.46 984 958 191.2
C 9 144 692276 3087.75 957 962 223.9
C 10 65 17544 74.06 957 962 223.9
C 8 128 8373 33.1 957 962 223.9
D 12 110 174104 739.81 956 927 234.1
D 13 239 56006 235.3 956 927 234.1
D 5 233 16092 64.79 956 927 234.1

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