ASTROSAT CZTI

Data Quality Report

Orbit 32266

Creation date: 2024-06-27T20:38:14.379841
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/AS1A09_131T01_9000004696_32266cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32266cztM0_level2_quad_clean.evt
Size (bytes)902,609,280129,038,400
Size860.8 MB 123.1 MB
Events in quadrant A3,249,211921,898
Events in quadrant B5,410,698939,936
Events in quadrant C3,624,967924,474
Events in quadrant D14,607,978661,821

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138972
B0208282
C0149812
D0478972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6575470.714829%
B65752143.254753%
C65752874.365019%
D6575439066.768061%

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 7875 6576 0 0 0.00% 0.00%
B 7875 6576 47 47 0.60% 0.71%
C 7875 6576 21 21 0.27% 0.32%
D 7875 6576 5332 5332 67.71% 81.08%

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 13 6 18401 106.91 830 813 164.5
A 8 205 14760 84.78 830 813 164.5
A 13 254 12847 73.15 830 813 164.5
B 6 159 1872969 12336.57 830 810 151.8
B 5 172 198415 1302.12 830 810 151.8
B 0 245 22563 143.34 830 810 151.8
C 0 10 167417 894.57 809 819 186.2
C 14 238 165780 885.78 809 819 186.2
C 14 254 46795 246.87 809 819 186.2
D 1 52 10361085 66826.62 655 638 155.0
D 8 195 1055548 6804.35 655 638 155.0
D 12 218 297391 1914.11 655 638 155.0

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