ASTROSAT CZTI

Data Quality Report

Orbit 33059

Creation date: 2024-06-27T20:44:28.864444
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_080T01_9000004756_33059cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33059cztM0_level2_quad_clean.evt
Size (bytes)695,427,84085,394,880
Size663.2 MB 81.4 MB
Events in quadrant A2,759,796611,299
Events in quadrant B3,661,576596,789
Events in quadrant C4,063,138532,974
Events in quadrant D10,203,726457,965

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115233
B0143272
C0154652
D0341782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A551750.090629%
B55172173.933297%
C55175449.860431%
D5517282851.259743%

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 7370 5518 0 0 0.00% 0.00%
B 7370 5518 171 171 2.32% 3.10%
C 7370 5518 493 493 6.69% 8.93%
D 7370 5518 2783 2783 37.76% 50.43%

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 15 169 81371 591.41 683 671 136.5
A 13 6 21267 150.94 683 671 136.5
A 14 4 14127 98.61 683 671 136.5
B 5 200 419507 3360.72 668 655 124.6
B 5 172 229200 1833.76 668 655 124.6
B 5 31 91740 730.83 668 655 124.6
C 1 23 1351642 9410.88 619 626 143.6
C 0 10 188377 1307.83 619 626 143.6
C 7 221 60696 418.43 619 626 143.6
D 7 223 6359375 45334.08 528 517 140.3
D 8 195 943770 6724.71 528 517 140.3
D 2 250 307490 2188.5 528 517 140.3

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