ASTROSAT CZTI

Data Quality Report

Orbit 03896

Creation date: 2024-06-27T14:34:57.635176
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_083T02_9000000498_03896cztM0_level2.evt modeM0/AS1G05_083T02_9000000498_03896cztM0_level2_quad_clean.evt
Size (bytes)199,776,9606,517,440
Size190.5 MB 6.2 MB
Events in quadrant A749,84725,047
Events in quadrant B847,76826,015
Events in quadrant C3,625,5029,229
Events in quadrant D721,59823,863

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033092
B034731
C0118041
D033091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1517805.273566%
B1517765.009888%
C1517134188.398154%
D1517432.834542%

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 1516 1516 4 4 0.26% 0.26%
B 1516 1516 4 4 0.26% 0.26%
C 1516 1516 1280 1280 84.43% 84.43%
D 1516 1516 4 4 0.26% 0.26%

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 0 118 56740 1474.55 175 171 38.4
A 0 226 7112 180.92 175 171 38.4
A 2 79 4791 120.42 175 171 38.4
B 7 221 99847 2722.11 179 175 36.6
B 4 81 30849 837.73 179 175 36.6
B 15 204 13642 367.79 179 175 36.6
C 2 53 3296308 159470.12 81 81 20.7
C 8 128 3222 151.96 81 81 20.7
C 8 112 1451 66.28 81 81 20.7
D 13 239 45837 1098.73 167 162 41.6
D 2 206 14262 339.18 167 162 41.6
D 2 16 10430 247.0 167 162 41.6

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