ASTROSAT CZTI

Data Quality Report

Orbit 37359

Creation date: 2024-06-27T21:38:56.849015
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/AS1C07_014T01_9000005314_37359cztM0_level2.evt modeM0/AS1C07_014T01_9000005314_37359cztM0_level2_quad_clean.evt
Size (bytes)528,287,04086,690,880
Size503.8 MB 82.7 MB
Events in quadrant A2,853,479582,797
Events in quadrant B2,966,233582,717
Events in quadrant C2,804,257584,098
Events in quadrant D7,028,194516,295

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117232
B0121422
C0113452
D0244972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5123691.346867%
B51231432.791333%
C5123480.936951%
D512375214.678899%

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 6856 5124 44 44 0.64% 0.86%
B 6856 5124 83 83 1.21% 1.62%
C 6856 5124 36 36 0.53% 0.70%
D 6856 5124 730 730 10.65% 14.25%

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 273978 2194.55 608 600 124.6
A 15 237 129750 1036.75 608 600 124.6
A 9 143 45339 359.14 608 600 124.6
B 5 172 335558 2861.95 605 593 117.0
B 0 190 70442 596.79 605 593 117.0
B 5 255 64311 544.41 605 593 117.0
C 15 214 217424 1527.62 600 607 141.9
C 0 10 97103 679.88 600 607 141.9
C 15 159 92941 650.56 600 607 141.9
D 12 235 2710359 18867.22 574 558 143.6
D 12 227 987268 6870.05 574 558 143.6
D 2 249 643464 4476.29 574 558 143.6

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