ASTROSAT CZTI

Data Quality Report

Orbit 47137

Creation date: 2024-06-27T23:32:08.727811
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_003T01_9000006298_47137cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47137cztM0_level2_quad_clean.evt
Size (bytes)494,645,760110,658,240
Size471.7 MB 105.5 MB
Events in quadrant A7,034,197726,671
Events in quadrant B3,547,028753,149
Events in quadrant C3,129,854721,566
Events in quadrant D4,061,907666,506

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254922
B0154172
C0145542
D0171972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69222994.319561%
B6923951.372237%
C6923330.476672%
D69231331.921132%

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 8747 6923 132 132 1.51% 1.91%
B 8748 6924 52 52 0.59% 0.75%
C 8748 6925 12 12 0.14% 0.17%
D 8748 6925 102 102 1.17% 1.47%

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 3937707 25239.25 748 730 156.0
A 15 235 154707 987.12 748 730 156.0
A 0 243 18917 116.59 748 730 156.0
B 4 21 163145 1099.31 755 732 147.7
B 5 32 149067 1004.03 755 732 147.7
B 5 255 70847 474.58 755 732 147.7
C 14 254 116704 662.12 744 746 175.1
C 15 208 102934 583.49 744 746 175.1
C 3 233 7316 37.51 744 746 175.1
D 1 47 410382 2191.34 740 717 186.9
D 13 171 298351 1592.08 740 717 186.9
D 2 249 120799 642.33 740 717 186.9

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