ASTROSAT CZTI

Data Quality Report

Orbit 42388

Creation date: 2024-06-27T22:39:42.572104
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/AS1C06_010T01_9000005800_42388cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42388cztM0_level2_quad_clean.evt
Size (bytes)349,634,88090,584,640
Size333.4 MB 86.4 MB
Events in quadrant A3,019,014629,893
Events in quadrant B2,625,837623,698
Events in quadrant C3,155,884583,393
Events in quadrant D3,741,469545,736

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120382
B0111952
C0124902
D0146682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5137390.759198%
B5138400.778513%
C51381823.542234%
D51382775.391203%

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 7290 5138 28 28 0.38% 0.54%
B 7291 5139 29 29 0.40% 0.56%
C 7291 5139 136 136 1.87% 2.65%
D 7291 5139 220 220 3.02% 4.28%

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 620609 5268.26 579 569 117.7
A 7 3 133216 1127.05 579 569 117.7
A 13 6 16674 136.84 579 569 117.7
B 15 36 136633 1273.28 569 554 106.9
B 5 255 80318 746.34 569 554 106.9
B 7 221 42615 393.56 569 554 106.9
C 4 254 435302 3335.96 555 557 130.3
C 15 214 217858 1667.43 555 557 130.3
C 14 254 183756 1405.75 555 557 130.3
D 10 118 613260 4572.04 559 544 134.0
D 1 52 607424 4528.49 559 544 134.0
D 13 249 174398 1297.28 559 544 134.0

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