ASTROSAT CZTI

Data Quality Report

Orbit 47522

Creation date: 2024-07-12T04:50:51.701185
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/AS1C09_002T01_9000006334_47522cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47522cztM0_level2_quad_clean.evt
Size (bytes)541,575,360118,987,200
Size516.5 MB 113.5 MB
Events in quadrant A7,543,335772,096
Events in quadrant B4,038,604812,919
Events in quadrant C3,336,426788,394
Events in quadrant D4,552,091711,650

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271032
B0172482
C0156122
D0189342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74424656.248320%
B74421892.539640%
C7442771.034668%
D74422503.359312%

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 7697 7444 51 51 0.66% 0.69%
B 7697 7444 53 53 0.69% 0.71%
C 7697 7444 20 20 0.26% 0.27%
D 7697 7444 151 151 1.96% 2.03%

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 10 83 4171618 24955.82 811 794 167.1
A 13 248 95143 564.53 811 794 167.1
A 9 191 74660 441.97 811 794 167.1
B 5 32 379554 2357.8 818 793 160.6
B 0 200 256810 1593.72 818 793 160.6
B 0 198 52294 320.6 818 793 160.6
C 14 254 113582 593.55 808 809 190.0
C 12 2 29298 149.94 808 809 190.0
C 1 3 27548 140.73 808 809 190.0
D 2 165 386741 1903.98 799 772 202.7
D 7 38 358230 1763.34 799 772 202.7
D 2 249 331480 1631.38 799 772 202.7

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