ASTROSAT CZTI

Data Quality Report

Orbit 09810

Creation date: 2024-06-27T15:50:54.579836
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/AS1G05_218T01_9000001394_09810cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09810cztM0_level2_quad_clean.evt
Size (bytes)413,095,68091,915,200
Size394.0 MB 87.7 MB
Events in quadrant A2,882,381592,222
Events in quadrant B2,997,464604,420
Events in quadrant C3,010,068591,204
Events in quadrant D3,202,806567,276

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01284
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013090392
B013435395
C013652479
D014278507

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6134270.440170%
B6143520.846492%
C6120490.800654%
D6117711.160700%

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 7434 6306 0 0 0.00% 0.00%
B 7434 6308 8 8 0.11% 0.13%
C 7434 6302 8 8 0.11% 0.13%
D 7434 6301 26 26 0.35% 0.41%

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 1 162 22436 144.91 738 722 149.8
A 13 251 9271 57.05 738 722 149.8
A 0 226 6596 39.2 738 722 149.8
B 0 85 40553 277.03 746 728 143.8
B 0 214 26324 178.05 746 728 143.8
B 12 111 16110 107.0 746 728 143.8
C 10 22 168369 985.08 727 731 170.2
C 5 128 6336 32.94 727 731 170.2
C 13 61 5422 27.57 727 731 170.2
D 1 52 171360 921.88 713 698 185.1
D 2 152 148747 799.73 713 698 185.1
D 12 233 47316 251.82 713 698 185.1

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