ASTROSAT CZTI

Data Quality Report

Orbit 00378

Creation date: 2024-06-27T13:59:09.273735
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/AS1P01_161T05_9000000058_00378cztM0_level2.evt modeM0/AS1P01_161T05_9000000058_00378cztM0_level2_quad_clean.evt
Size (bytes)682,678,08043,770,240
Size651.1 MB 41.7 MB
Events in quadrant A4,845,903274,550
Events in quadrant B4,795,975259,907
Events in quadrant C5,276,858270,104
Events in quadrant D5,476,869224,891

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173802
B0172071
C0186761
D0192921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A420140.095215%
B420120.047608%
C4201501.190193%
D42011744.141871%

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 6416 4202 83 83 1.29% 1.98%
B 6416 4202 44 44 0.69% 1.05%
C 6416 4202 198 198 3.09% 4.71%
D 6416 4202 405 405 6.31% 9.64%

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 69 79751 298.85 1195 1181 262.9
A 0 238 60055 223.93 1195 1181 262.9
A 12 243 27425 99.82 1195 1181 262.9
B 0 230 58042 201.45 1210 1213 282.1
B 4 235 26635 90.12 1210 1213 282.1
B 5 46 19460 64.68 1210 1213 282.1
C 10 107 611194 1941.2 1126 1168 314.3
C 5 234 216604 685.55 1126 1168 314.3
C 1 1 17133 50.8 1126 1168 314.3
D 13 7 790512 2432.17 1064 1103 324.6
D 1 5 138635 423.74 1064 1103 324.6
D 1 4 122269 373.31 1064 1103 324.6

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