ASTROSAT CZTI

Data Quality Report

Orbit 15130

Creation date: 2024-06-27T17:04:24.168704
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/AS1G08_061T03_9000002228_15130cztM0_level2.evt modeM0/AS1G08_061T03_9000002228_15130cztM0_level2_quad_clean.evt
Size (bytes)331,436,16065,888,640
Size316.1 MB 62.8 MB
Events in quadrant A2,245,925425,825
Events in quadrant B2,364,978433,326
Events in quadrant C2,871,523420,044
Events in quadrant D2,259,860410,845

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094531
B096810
C0118620
D097140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43302686.189376%
B43303036.997691%
C43302295.288684%
D43302295.288684%

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 4331 4331 0 0 0.00% 0.00%
B 4331 4331 12 12 0.28% 0.28%
C 4331 4331 0 0 0.00% 0.00%
D 4331 4331 18 18 0.42% 0.42%

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 12 189 52127 435.98 566 553 118.3
A 15 239 13529 109.69 566 553 118.3
A 0 226 4914 36.87 566 553 118.3
B 4 48 51907 453.42 566 550 113.3
B 3 209 31953 277.25 566 550 113.3
B 3 64 24619 212.5 566 550 113.3
C 3 233 704361 5286.97 554 557 133.1
C 3 234 4224 27.55 554 557 133.1
C 13 61 3917 25.24 554 557 133.1
D 13 172 72448 511.12 559 542 140.7
D 10 70 17144 118.01 559 542 140.7
D 2 234 16261 111.73 559 542 140.7

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