ASTROSAT CZTI

Data Quality Report

Orbit 31453

Creation date: 2024-06-27T20:28:41.937571
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_029T01_9000004582_31453cztM0_level2.evt modeM0/AS1T04_029T01_9000004582_31453cztM0_level2_quad_clean.evt
Size (bytes)577,566,72096,419,520
Size550.8 MB 92.0 MB
Events in quadrant A3,207,647651,731
Events in quadrant B5,492,633652,042
Events in quadrant C4,618,808584,091
Events in quadrant D3,751,280597,327

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132222
B0203412
C0176372
D0153362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6229210.337133%
B62292383.820838%
C62295178.299888%
D6229260.417402%

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 7524 6230 0 0 0.00% 0.00%
B 7524 6230 123 123 1.63% 1.97%
C 7524 6230 306 306 4.07% 4.91%
D 7524 6230 5 5 0.07% 0.08%

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 13 254 10838 61.17 832 818 163.8
A 3 137 7692 41.97 832 818 163.8
A 0 226 7082 38.24 832 818 163.8
B 6 159 1750020 11337.27 819 801 154.3
B 12 1 468446 3030.96 819 801 154.3
B 4 80 34623 219.21 819 801 154.3
C 3 233 966907 5421.18 765 774 178.2
C 10 22 232587 1300.75 765 774 178.2
C 0 10 232506 1300.3 765 774 178.2
D 8 195 658988 3531.36 790 773 186.4
D 12 79 38251 201.07 790 773 186.4
D 10 203 32916 172.45 790 773 186.4

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