ASTROSAT CZTI

Data Quality Report

Orbit 23523

Creation date: 2024-06-27T18:55:39.176706
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/AS1A07_112T02_9000003480_23523cztM0_level2.evt modeM0/AS1A07_112T02_9000003480_23523cztM0_level2_quad_clean.evt
Size (bytes)325,569,60059,276,160
Size310.5 MB 56.5 MB
Events in quadrant A2,221,701379,789
Events in quadrant B2,325,919382,416
Events in quadrant C2,238,882362,558
Events in quadrant D2,767,937354,723

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A114013631208128846
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091615
B094303
C092151
D01103412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A448180.178532%
B4482170.379295%
C4483200.446130%
D4481511.138139%

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 4483 4483 0 0 0.00% 0.00%
B 4483 4483 1 1 0.02% 0.02%
C 4483 4483 0 0 0.00% 0.00%
D 4483 4483 38 38 0.85% 0.85%

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 13 254 7492 59.83 576 566 115.8
A 0 226 4936 37.75 576 566 115.8
A 3 137 4626 35.07 576 566 115.8
B 0 189 36366 339.08 564 553 105.6
B 0 230 29232 271.53 564 553 105.6
B 0 245 17963 164.84 564 553 105.6
C 14 238 88828 703.56 541 546 125.5
C 7 247 27891 217.92 541 546 125.5
C 2 16 7692 56.95 541 546 125.5
D 1 52 603702 4447.17 554 538 135.6
D 8 195 24054 173.39 554 538 135.6
D 2 234 19774 141.83 554 538 135.6

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