ASTROSAT CZTI

Data Quality Report

Orbit 10699

Creation date: 2024-06-27T16:02:37.133421
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/AS1A03_097T01_9000001540_10699cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10699cztM0_level2_quad_clean.evt
Size (bytes)330,114,24045,748,800
Size314.8 MB 43.6 MB
Events in quadrant A1,959,434272,244
Events in quadrant B3,446,047273,852
Events in quadrant C1,852,223275,031
Events in quadrant D2,443,815258,161

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089301
B0131733
C087501
D0104761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4344120.276243%
B43433237.437255%
C434450.115101%
D4344290.667587%

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 4344 4344 2 2 0.05% 0.05%
B 4344 4344 255 255 5.87% 5.87%
C 4344 4344 1 1 0.02% 0.02%
D 4344 4344 41 41 0.94% 0.94%

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 4 2 53423 534.17 479 470 99.1
A 15 239 25150 248.96 479 470 99.1
A 1 162 9036 86.41 479 470 99.1
B 4 239 995334 10938.65 475 463 91.0
B 0 85 465183 5109.62 475 463 91.0
B 0 219 65366 713.61 475 463 91.0
C 14 234 8057 69.08 471 475 109.8
C 14 238 3942 31.59 471 475 109.8
C 13 61 3578 28.27 471 475 109.8
D 10 199 287686 2561.43 461 449 112.1
D 2 16 196540 1748.63 461 449 112.1
D 12 233 72852 645.65 461 449 112.1

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