ASTROSAT CZTI

Data Quality Report

Orbit 11382

Creation date: 2024-06-27T16:12:09.110093
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/AS1A04_022T03_9000001664_11382cztM0_level2.evt modeM0/AS1A04_022T03_9000001664_11382cztM0_level2_quad_clean.evt
Size (bytes)221,774,40029,914,560
Size211.5 MB 28.5 MB
Events in quadrant A1,626,622177,989
Events in quadrant B1,509,546180,804
Events in quadrant C1,125,798204,538
Events in quadrant D2,293,387172,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064102
B060731
C049711
D084491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23402058.760684%
B23402319.871795%
C2340492.094017%
D234029812.735043%

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 2540 2341 75 75 2.95% 3.20%
B 2540 2341 57 57 2.24% 2.43%
C 2540 2341 0 0 0.00% 0.00%
D 2540 2340 179 179 7.05% 7.65%

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 8 5 513408 8743.77 274 267 58.7
A 13 210 19357 325.29 274 267 58.7
A 8 6 14058 234.99 274 267 58.7
B 4 239 381228 6841.47 278 269 55.7
B 3 64 15157 267.37 278 269 55.7
B 3 189 12133 213.06 278 269 55.7
C 13 61 2071 25.57 287 288 69.7
C 12 4 2057 25.37 287 288 69.7
C 8 128 1080 11.36 287 288 69.7
D 14 34 646786 9914.24 264 256 65.2
D 1 52 342390 5246.47 264 256 65.2
D 10 253 104975 1605.82 264 256 65.2

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