ASTROSAT CZTI

Data Quality Report

Orbit 39097

Creation date: 2024-06-27T22:00:21.979573
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_067T01_9000005432_39097cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39097cztM0_level2_quad_clean.evt
Size (bytes)351,146,88095,967,360
Size334.9 MB 91.5 MB
Events in quadrant A3,365,707652,814
Events in quadrant B2,754,267672,160
Events in quadrant C3,367,874634,171
Events in quadrant D3,105,005581,939

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133743
B0113752
C0133452
D0125562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5212210.402916%
B5212641.227936%
C5212290.556408%
D5212911.745971%

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 7095 5213 13 13 0.18% 0.25%
B 7095 5213 33 33 0.47% 0.63%
C 7095 5213 22 22 0.31% 0.42%
D 7095 5213 71 71 1.00% 1.36%

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 407717 3216.08 626 614 126.6
A 12 16 383579 3025.39 626 614 126.6
A 7 3 72598 568.67 626 614 126.6
B 5 184 187115 1571.18 620 605 118.7
B 5 172 72409 604.88 620 605 118.7
B 0 230 33021 273.08 620 605 118.7
C 15 208 648829 4635.21 602 607 139.8
C 15 214 224473 1600.79 602 607 139.8
C 9 187 125109 890.27 602 607 139.8
D 2 249 253119 1742.01 602 587 145.0
D 12 235 192012 1320.49 602 587 145.0
D 12 233 145773 1001.52 602 587 145.0

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