ASTROSAT CZTI

Data Quality Report

Orbit 09703

Creation date: 2024-06-27T15:49:34.128855
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_029T01_9000001384_09703cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09703cztM0_level2_quad_clean.evt
Size (bytes)342,100,80053,305,920
Size326.3 MB 50.8 MB
Events in quadrant A2,538,489322,306
Events in quadrant B2,370,932325,855
Events in quadrant C2,392,767318,971
Events in quadrant D2,731,301309,694

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105844
B0101683
C0104029
D0114445

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4794771.606174%
B4794801.668753%
C4791841.753287%
D47931132.357605%

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 5160 4796 3 3 0.06% 0.06%
B 5160 4796 3 3 0.06% 0.06%
C 5160 4796 44 44 0.85% 0.92%
D 5160 4796 41 41 0.79% 0.85%

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 124979 1032.76 582 568 120.5
A 1 178 48751 399.97 582 568 120.5
A 1 161 43222 354.08 582 568 120.5
B 0 214 53568 463.55 583 568 114.3
B 10 245 18266 154.79 583 568 114.3
B 12 111 12310 102.7 583 568 114.3
C 14 234 185597 1399.56 562 566 132.2
C 9 237 5013 33.64 562 566 132.2
C 14 238 4627 30.72 562 566 132.2
D 1 52 535335 3851.63 557 542 138.8
D 2 234 24374 171.64 557 542 138.8
D 8 195 17452 121.79 557 542 138.8

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