ASTROSAT CZTI

Data Quality Report

Orbit 48568

Creation date: 2024-09-23T12:04:06.146674
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_037T01_9000006436_48568cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48568cztM0_level2_quad_clean.evt
Size (bytes)378,469,44084,257,280
Size360.9 MB 80.4 MB
Events in quadrant A5,120,147529,928
Events in quadrant B3,030,321568,236
Events in quadrant C2,363,168559,555
Events in quadrant D3,056,535498,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235404679
B0160503031
C0135221982
D0158832715

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012812
B012816
C012812
D012818

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5446701.285347%
B56691552.734168%
C573120.034898%
D5705470.823839%

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 7480 5862 0 0 0.00% 0.00%
B 7475 6105 75 75 1.00% 1.23%
C 7480 6150 0 0 0.00% 0.00%
D 7480 6110 46 46 0.61% 0.75%

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 2808845 22686.78 584 569 123.8
A 12 189 45183 360.42 584 569 123.8
A 13 254 10217 77.94 584 569 123.8
B 12 16 363051 3026.13 603 582 119.8
B 12 48 255190 2125.63 603 582 119.8
B 12 111 15975 128.51 603 582 119.8
C 12 250 4356 26.17 604 605 143.3
C 14 67 4176 24.91 604 605 143.3
C 13 61 4034 23.92 604 605 143.3
D 2 165 447217 3000.77 593 574 148.8
D 13 171 106897 714.33 593 574 148.8
D 7 96 103153 689.18 593 574 148.8

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