ASTROSAT CZTI

Data Quality Report

Orbit 46196

Creation date: 2024-06-27T23:20:14.227203
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_093T40_9000006182_46196cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46196cztM0_level2_quad_clean.evt
Size (bytes)490,296,96098,331,840
Size467.6 MB 93.8 MB
Events in quadrant A5,557,136660,353
Events in quadrant B3,560,600675,450
Events in quadrant C2,776,595655,940
Events in quadrant D5,779,098557,150

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201361
B0146031
C0128751
D0214161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61301562.544861%
B61311642.674931%
C6131641.043875%
D613167310.977002%

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 7110 6130 8 8 0.11% 0.13%
B 7111 6132 95 95 1.34% 1.55%
C 7111 6132 33 33 0.46% 0.54%
D 7111 6131 534 534 7.51% 8.71%

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 2724437 19411.93 679 663 140.3
A 0 247 135789 963.02 679 663 140.3
A 13 248 32296 225.44 679 663 140.3
B 3 112 622398 4729.75 668 648 131.5
B 5 172 265181 2012.34 668 648 131.5
B 12 111 16835 123.14 668 648 131.5
C 12 2 186939 1198.52 660 663 155.4
C 14 254 6098 34.97 660 663 155.4
C 3 233 5433 30.69 660 663 155.4
D 1 52 2008246 12528.17 643 623 160.2
D 2 249 533970 3328.25 643 623 160.2
D 13 249 353475 2201.9 643 623 160.2

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