ASTROSAT CZTI

Data Quality Report

Orbit 43107

Creation date: 2024-06-27T22:48:07.453031
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/AS1T05_153T01_9000005848_43107cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43107cztM0_level2_quad_clean.evt
Size (bytes)358,159,68099,244,800
Size341.6 MB 94.6 MB
Events in quadrant A3,871,178654,186
Events in quadrant B2,966,352674,944
Events in quadrant C3,214,402647,217
Events in quadrant D2,729,534601,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154632
B0130592
C0135292
D0127922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61171472.403139%
B6118130.212488%
C6118731.193200%
D6118300.490356%

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 9312 6119 92 92 0.99% 1.50%
B 9313 6120 7 7 0.08% 0.11%
C 9313 6120 59 59 0.63% 0.96%
D 9313 6120 18 18 0.19% 0.29%

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 10 83 650316 4827.92 656 642 134.6
A 15 237 475324 3527.5 656 642 134.6
A 15 222 107232 792.1 656 642 134.6
B 0 229 245215 1929.86 655 636 126.7
B 5 255 106565 835.84 655 636 126.7
B 3 112 27708 213.61 655 636 126.7
C 0 239 282604 1872.61 642 645 150.6
C 15 214 275512 1825.51 642 645 150.6
C 8 79 70561 464.34 642 645 150.6
D 1 52 102138 652.32 642 623 155.6
D 13 249 51161 324.75 642 623 155.6
D 12 233 36060 227.71 642 623 155.6

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter