ASTROSAT CZTI

Data Quality Report

Orbit 12116

Creation date: 2024-06-27T16:22:37.675247
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/AS1G08_065T01_9000001796_12116cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12116cztM0_level2_quad_clean.evt
Size (bytes)545,814,72099,832,320
Size520.5 MB 95.2 MB
Events in quadrant A3,803,371654,697
Events in quadrant B4,607,969645,606
Events in quadrant C3,238,719654,803
Events in quadrant D4,448,354623,845

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157043
B0180352
C0137882
D0175152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63751522.384314%
B63753545.552941%
C63751021.600000%
D63752413.780392%

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 7606 6377 9 9 0.12% 0.14%
B 7606 6377 175 175 2.30% 2.74%
C 7606 6377 21 21 0.28% 0.33%
D 7606 6377 129 129 1.70% 2.02%

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 14 63 273776 1682.18 808 792 162.3
A 1 162 160056 981.41 808 792 162.3
A 1 178 84006 512.78 808 792 162.3
B 4 239 1103981 7397.25 798 779 149.1
B 15 204 161671 1078.82 798 779 149.1
B 11 51 82089 545.2 798 779 149.1
C 15 208 125833 684.17 796 801 182.8
C 14 234 8692 43.18 796 801 182.8
C 13 61 6005 28.48 796 801 182.8
D 4 95 797394 4294.28 784 762 185.5
D 1 52 282229 1517.26 784 762 185.5
D 14 34 111152 595.06 784 762 185.5

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