ASTROSAT CZTI

Data Quality Report

Orbit 43413

Creation date: 2024-06-27T22:51:40.916609
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_018T01_9000005874_43413cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43413cztM0_level2_quad_clean.evt
Size (bytes)350,435,52086,616,000
Size334.2 MB 82.6 MB
Events in quadrant A3,254,321574,401
Events in quadrant B2,746,746598,711
Events in quadrant C2,746,191568,797
Events in quadrant D3,813,932511,464

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130251
B0117601
C0115881
D0150951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52761442.729340%
B5277370.701156%
C5277130.246352%
D52771993.771082%

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 7040 5277 115 115 1.63% 2.18%
B 7041 5278 32 32 0.45% 0.61%
C 7041 5278 9 9 0.13% 0.17%
D 7041 5278 194 194 2.76% 3.68%

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 581020 4978.28 557 545 116.6
A 15 237 469389 4020.91 557 545 116.6
A 13 248 28498 239.73 557 545 116.6
B 0 189 259169 2405.2 565 551 107.5
B 0 245 89511 827.35 565 551 107.5
B 0 190 70258 648.29 565 551 107.5
C 3 233 301956 2323.92 556 559 129.7
C 15 214 216993 1668.82 556 559 129.7
C 15 159 38653 293.72 556 559 129.7
D 1 52 485308 3670.15 546 533 132.1
D 2 16 438524 3315.95 546 533 132.1
D 13 249 212080 1601.59 546 533 132.1

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