ASTROSAT CZTI

Data Quality Report

Orbit 45430

Creation date: 2024-06-27T23:11:29.627508
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_009T01_9000006060_45430cztM0_level2.fits modeM0/AS1A13_009T01_9000006060_45430cztM0_level2_quad_clean.evt
Size (bytes)485,573,760109,160,640
Size463.1 MB 104.1 MB
Events in quadrant A5,869,947722,245
Events in quadrant B3,637,893761,667
Events in quadrant C3,171,139735,563
Events in quadrant D4,804,179643,553

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217772
B0149782
C0137432
D0185532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63342523.978529%
B63341181.862962%
C6334600.947269%
D63342684.231134%

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 7539 6334 128 128 1.70% 2.02%
B 7539 6334 69 69 0.92% 1.09%
C 7539 6335 41 41 0.54% 0.65%
D 7539 6335 262 262 3.48% 4.14%

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 2751536 18073.22 732 717 152.2
A 9 191 134258 877.38 732 717 152.2
A 13 248 84077 547.69 732 717 152.2
B 15 201 301723 2071.07 744 723 145.3
B 4 158 115353 788.73 744 723 145.3
B 0 171 51114 346.72 744 723 145.3
C 14 254 133019 772.22 728 735 171.3
C 12 2 49443 284.34 728 735 171.3
C 14 96 41132 235.82 728 735 171.3
D 1 52 926872 5195.64 706 686 178.3
D 11 241 305361 1709.14 706 686 178.3
D 2 249 267627 1497.46 706 686 178.3

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