ASTROSAT CZTI

Data Quality Report

Orbit 34967

Creation date: 2022-03-17T19:09:09.954481
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/AS1A11_047T09_9000005010_34967cztM0_level2.evt modeM0/AS1A11_047T09_9000005010_34967cztM0_level2_quad_clean.evt
Size (bytes)440,582,40086,155,200
Size420.2 MB 82.2 MB
Events in quadrant A2,599,134568,707
Events in quadrant B3,485,758562,861
Events in quadrant C2,827,913562,055
Events in quadrant D4,053,283526,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113412
B0139371
C0116381
D0159331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A555570.126013%
B55552354.230423%
C5555180.324032%
D55551111.998200%

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 7168 5556 0 0 0.00% 0.00%
B 7168 5556 165 165 2.30% 2.97%
C 7168 5556 13 13 0.18% 0.23%
D 7168 5556 89 89 1.24% 1.60%

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 52444 387.92 656 644 133.5
A 13 6 9642 67.38 656 644 133.5
A 13 254 9195 64.04 656 644 133.5
B 5 172 704546 5661.84 638 621 124.3
B 0 190 147752 1183.41 638 621 124.3
B 0 155 59355 472.41 638 621 124.3
C 15 214 232239 1562.84 635 640 148.2
C 12 250 47746 317.87 635 640 148.2
C 0 10 41181 273.57 635 640 148.2
D 8 195 945476 6109.77 635 617 154.6
D 13 249 227946 1469.98 635 617 154.6
D 2 207 84839 544.6 635 617 154.6

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