ASTROSAT CZTI

Data Quality Report

Orbit 44210

Creation date: 2024-06-27T23:00:33.922176
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/AS1A13_047T01_9000005970_44210cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44210cztM0_level2_quad_clean.evt
Size (bytes)498,288,960118,445,760
Size475.2 MB 113.0 MB
Events in quadrant A6,669,911801,078
Events in quadrant B3,948,887800,976
Events in quadrant C3,203,613791,651
Events in quadrant D4,128,804749,005

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246331
B0160181
C0140821
D0164661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63685198.150126%
B63682373.721734%
C6368791.240578%
D63681402.198492%

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 7308 6368 209 209 2.86% 3.28%
B 7308 6368 87 87 1.19% 1.37%
C 7308 6369 16 16 0.22% 0.25%
D 7308 6369 56 56 0.77% 0.88%

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 15 223 2389504 14947.43 760 749 159.8
A 10 83 1307697 8178.11 760 749 159.8
A 0 243 19551 117.65 760 749 159.8
B 0 200 265920 1785.46 750 731 148.5
B 3 112 232029 1557.28 750 731 148.5
B 5 172 151213 1013.16 750 731 148.5
C 4 254 165211 917.7 742 748 179.2
C 14 254 79590 439.93 742 748 179.2
C 3 233 64478 355.61 742 748 179.2
D 1 52 660395 3378.86 756 734 195.2
D 2 249 273707 1398.2 756 734 195.2
D 13 249 159315 812.27 756 734 195.2

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