ASTROSAT CZTI

Data Quality Report

Orbit 00605

Creation date: 2024-06-27T14:00:27.026522
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/AS1P01_126T01_9000000084_00605cztM0_level2.evt modeM0/AS1P01_126T01_9000000084_00605cztM0_level2_quad_clean.evt
Size (bytes)799,773,12065,908,800
Size762.7 MB 62.9 MB
Events in quadrant A6,103,269410,064
Events in quadrant B6,280,761418,087
Events in quadrant C5,899,930405,759
Events in quadrant D5,587,238393,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218493
B0223902
C0212882
D0203802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525970.133105%
B5259350.665526%
C525940.076060%
D5259160.304240%

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 7414 5260 105 105 1.42% 2.00%
B 7414 5260 112 112 1.51% 2.13%
C 7414 5260 43 43 0.58% 0.82%
D 7414 5260 70 70 0.94% 1.33%

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 13 160 82173 238.69 1516 1491 338.0
A 0 69 50549 145.13 1516 1491 338.0
A 0 149 50444 144.82 1516 1491 338.0
B 5 191 149880 414.03 1549 1560 358.2
B 7 221 103431 284.37 1549 1560 358.2
B 4 250 34663 92.41 1549 1560 358.2
C 15 241 191380 476.1 1436 1491 398.8
C 9 83 39307 94.81 1436 1491 398.8
C 1 1 26437 62.55 1436 1491 398.8
D 1 4 137336 324.4 1347 1399 419.0
D 13 221 89305 209.78 1347 1399 419.0
D 1 5 31752 72.43 1347 1399 419.0

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