ASTROSAT CZTI

Data Quality Report

Orbit 46374

Creation date: 2024-06-27T23:22:22.471765
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_068T02_9000006200_46374cztM0_level2.fits modeM0/AS1A13_068T02_9000006200_46374cztM0_level2_quad_clean.evt
Size (bytes)473,045,760110,568,960
Size451.1 MB 105.4 MB
Events in quadrant A6,142,643735,103
Events in quadrant B3,838,959758,967
Events in quadrant C3,157,750731,452
Events in quadrant D3,867,610669,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222141
B0155861
C0138681
D0157451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64873285.056266%
B64872844.377987%
C64871191.834438%
D64871752.697703%

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 7542 6488 54 54 0.72% 0.83%
B 7542 6488 52 52 0.69% 0.80%
C 7542 6488 11 11 0.15% 0.17%
D 7542 6488 57 57 0.76% 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 10 83 2904753 17988.27 767 749 161.4
A 13 248 262280 1620.0 767 749 161.4
A 13 254 9834 56.28 767 749 161.4
B 4 171 603702 4083.62 759 737 147.7
B 5 255 108198 727.79 759 737 147.7
B 0 190 39415 261.95 759 737 147.7
C 14 254 119885 673.11 755 762 177.0
C 1 3 42602 236.42 755 762 177.0
C 10 58 23581 128.94 755 762 177.0
D 8 176 271383 1429.95 760 736 189.3
D 13 249 228688 1204.37 760 736 189.3
D 5 235 197381 1038.96 760 736 189.3

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