ASTROSAT CZTI

Data Quality Report

Orbit 33381

Creation date: 2024-06-27T20:48:12.676617
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/AS1A10_064T02_9000004788_33381cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33381cztM0_level2_quad_clean.evt
Size (bytes)501,814,08063,336,960
Size478.6 MB 60.4 MB
Events in quadrant A2,409,034401,320
Events in quadrant B3,436,757412,671
Events in quadrant C3,126,961393,413
Events in quadrant D5,888,642362,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099923
B0131832
C0121782
D0210182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495590.181635%
B49553477.003027%
C4955721.453078%
D495592618.688194%

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 7077 4956 0 0 0.00% 0.00%
B 7077 4956 212 212 3.00% 4.28%
C 7077 4956 62 62 0.88% 1.25%
D 7077 4956 819 819 11.57% 16.53%

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 13 254 7284 53.62 622 611 124.4
A 3 137 5701 40.9 622 611 124.4
A 0 226 5371 38.25 622 611 124.4
B 5 172 664465 5816.88 604 589 114.1
B 0 219 271284 2371.83 604 589 114.1
B 5 200 90226 785.4 604 589 114.1
C 15 159 264137 1931.78 599 605 136.4
C 0 10 225393 1647.77 599 605 136.4
C 15 214 215900 1578.18 599 605 136.4
D 1 52 1811275 13135.59 564 548 137.8
D 8 195 712497 5164.7 564 548 137.8
D 2 250 391809 2838.33 564 548 137.8

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