ASTROSAT CZTI

Data Quality Report

Orbit 45953

Creation date: 2024-06-27T23:18:06.944523
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/AS1A13_071T06_9000006146_45953cztM0_level2.fits modeM0/AS1A13_071T06_9000006146_45953cztM0_level2_quad_clean.evt
Size (bytes)548,971,200108,506,880
Size523.5 MB 103.5 MB
Events in quadrant A5,790,493729,811
Events in quadrant B7,050,503697,444
Events in quadrant C3,160,969742,078
Events in quadrant D3,815,113662,255

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215101
B0256291
C0139731
D0159942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65071542.366682%
B650890813.952059%
C6508450.691457%
D65071141.751959%

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 7687 6508 8 8 0.10% 0.12%
B 7688 6508 554 554 7.21% 8.51%
C 7688 6509 28 28 0.36% 0.43%
D 7687 6507 40 40 0.52% 0.61%

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 2864982 18742.32 738 725 152.8
A 0 247 38348 246.19 738 725 152.8
A 13 248 10819 66.05 738 725 152.8
B 3 112 4123139 29660.99 714 693 139.0
B 0 186 34580 243.82 714 693 139.0
B 4 21 28303 198.65 714 693 139.0
C 12 249 205060 1195.19 732 738 171.0
C 5 250 77498 449.01 732 738 171.0
C 0 239 10929 59.61 732 738 171.0
D 11 241 801887 4392.61 721 697 182.4
D 7 55 59549 322.66 721 697 182.4
D 10 255 53313 288.47 721 697 182.4

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