ASTROSAT CZTI

Data Quality Report

Orbit 30395

Creation date: 2024-06-27T20:14:40.036096
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/AS1T04_006T01_9000004370_30395cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30395cztM0_level2_quad_clean.evt
Size (bytes)555,943,68078,995,520
Size530.2 MB 75.3 MB
Events in quadrant A3,625,667482,554
Events in quadrant B5,287,422511,045
Events in quadrant C3,359,256498,903
Events in quadrant D4,148,999471,359

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0161
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015623808
B0208851169
C014642784
D0175361056

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01326
B01324
C01324
D01326

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61451211.969081%
B60981742.853395%
C61441382.246094%
D61161953.188358%

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 7600 6263 9 9 0.12% 0.14%
B 7600 6230 6 6 0.08% 0.10%
C 7600 6256 0 0 0.00% 0.00%
D 7600 6237 107 107 1.41% 1.72%

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 13 108849 586.07 896 884 184.2
A 11 242 30727 162.0 896 884 184.2
A 8 192 22744 118.66 896 884 184.2
B 6 159 1783766 10956.89 850 833 162.7
B 0 229 123963 756.69 850 833 162.7
B 0 230 21078 124.41 850 833 162.7
C 14 238 130373 675.15 810 818 191.9
C 3 233 57201 293.83 810 818 191.9
C 2 114 14766 72.69 810 818 191.9
D 13 104 213766 1029.85 844 827 206.8
D 13 249 168647 811.64 844 827 206.8
D 8 195 162946 784.07 844 827 206.8

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