ASTROSAT CZTI

Data Quality Report

Orbit 44494

Creation date: 2024-06-27T23:02:10.616879
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_059T01_9000005990_44494cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44494cztM0_level2_quad_clean.evt
Size (bytes)167,149,44030,648,960
Size159.4 MB 29.2 MB
Events in quadrant A1,601,575205,080
Events in quadrant B1,623,032196,600
Events in quadrant C1,313,556201,892
Events in quadrant D1,498,093184,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062560
B060970
C051701
D057500

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19171316.833594%
B191729315.284298%
C1916733.810021%
D19161206.263048%

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 1917 1917 27 27 1.41% 1.41%
B 1917 1917 145 145 7.56% 7.56%
C 1916 1916 20 20 1.04% 1.04%
D 1916 1916 72 72 3.76% 3.76%

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 512248 9359.99 248 241 54.7
A 13 248 128568 2345.94 248 241 54.7
A 10 255 3600 61.41 248 241 54.7
B 5 235 511985 10154.41 237 229 50.4
B 5 172 160378 3177.72 237 229 50.4
B 0 155 10649 206.76 237 229 50.4
C 3 233 153219 2537.69 246 246 60.3
C 15 158 130690 2163.95 246 246 60.3
C 14 254 40438 666.75 246 246 60.3
D 1 52 216945 3373.35 248 239 64.2
D 4 221 149879 2329.37 248 239 64.2
D 2 249 83673 1298.78 248 239 64.2

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