ASTROSAT CZTI

Data Quality Report

Orbit 43298

Creation date: 2024-06-27T22:50:17.982639
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/AS1A12_089T01_9000005864_43298cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43298cztM0_level2_quad_clean.evt
Size (bytes)340,145,28093,772,800
Size324.4 MB 89.4 MB
Events in quadrant A3,364,854628,676
Events in quadrant B2,722,841657,320
Events in quadrant C2,741,950616,930
Events in quadrant D3,333,127551,696

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133542
B0116032
C0113872
D0136942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5500741.345455%
B5500320.581818%
C5500170.309091%
D55001552.818182%

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 7383 5501 57 57 0.77% 1.04%
B 7383 5501 18 18 0.24% 0.33%
C 7383 5501 10 10 0.14% 0.18%
D 7383 5501 144 144 1.95% 2.62%

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 593475 4649.26 620 608 127.5
A 15 237 197480 1543.87 620 608 127.5
A 12 189 107823 840.78 620 608 127.5
B 5 172 100621 833.28 625 607 120.0
B 0 189 55772 459.62 625 607 120.0
B 5 255 39729 325.95 625 607 120.0
C 15 214 231689 1613.37 610 613 143.2
C 15 159 93818 650.76 610 613 143.2
C 3 233 21674 147.05 610 613 143.2
D 13 249 392179 2670.14 597 580 146.7
D 1 52 305051 2076.05 597 580 146.7
D 12 6 160062 1087.44 597 580 146.7

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