ASTROSAT CZTI

Data Quality Report

Orbit 08597

Creation date: 2024-06-27T15:34:46.345438
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/AS1A03_102T01_9000001202_08597cztM0_level2.evt modeM0/AS1A03_102T01_9000001202_08597cztM0_level2_quad_clean.evt
Size (bytes)405,270,720103,844,160
Size386.5 MB 99.0 MB
Events in quadrant A2,946,412679,203
Events in quadrant B3,086,252714,668
Events in quadrant C2,698,154708,637
Events in quadrant D3,138,950627,975

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0211
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01264
C01264
D01268

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013344492
B013548464
C012562340
D0150521405

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5932861.449764%
B5937681.145360%
C5981160.267514%
D58462123.626411%

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 7437 6077 43 43 0.58% 0.71%
B 7437 6088 10 10 0.13% 0.16%
C 7437 6108 0 0 0.00% 0.00%
D 7437 5976 168 168 2.26% 2.81%

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 5 16 144487 1033.13 687 673 139.2
A 13 248 107596 768.11 687 673 139.2
A 15 223 25408 177.69 687 673 139.2
B 0 214 109359 817.61 708 690 132.9
B 0 219 54578 405.44 708 690 132.9
B 0 213 53879 400.19 708 690 132.9
C 13 61 5323 29.09 690 692 159.2
C 12 4 3110 15.19 690 692 159.2
C 12 16 2409 10.78 690 692 159.2
D 10 253 451897 2875.22 647 627 157.0
D 7 71 70140 442.89 647 627 157.0
D 9 102 50773 319.5 647 627 157.0

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