ASTROSAT CZTI

Data Quality Report

Orbit 47016

Creation date: 2024-06-27T23:30:47.058693
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_005T01_9000006296_47016cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47016cztM0_level2_quad_clean.evt
Size (bytes)752,103,360102,058,560
Size717.3 MB 97.3 MB
Events in quadrant A6,809,837766,814
Events in quadrant B13,466,317379,376
Events in quadrant C3,125,801749,889
Events in quadrant D3,879,778691,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249410
B0449722
C0149340
D0169220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72081522.108768%
B7208420558.337958%
C7208180.249723%
D72081141.581576%

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 7208 7208 4 4 0.06% 0.06%
B 7208 7208 3268 3268 45.34% 45.34%
C 7208 7208 15 15 0.21% 0.21%
D 7208 7208 89 89 1.23% 1.23%

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 3606648 21765.37 788 769 165.7
A 9 191 124506 746.89 788 769 165.7
A 13 254 12351 69.91 788 769 165.7
B 3 112 10383449 87598.12 609 590 118.5
B 4 171 296981 2500.59 609 590 118.5
B 15 36 133342 1120.0 609 590 118.5
C 14 254 108823 601.49 768 775 179.6
C 12 250 10132 52.09 768 775 179.6
C 12 249 10100 51.91 768 775 179.6
D 12 233 299273 1553.18 768 742 192.2
D 1 52 183530 951.0 768 742 192.2
D 13 249 168242 871.46 768 742 192.2

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