ASTROSAT CZTI

Data Quality Report

Orbit 34408

Creation date: 2022-02-07T23:50:24.293896
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/AS1A05_103T01_9000004912_34408cztM0_level2.evt modeM0/AS1A05_103T01_9000004912_34408cztM0_level2_quad_clean.evt
Size (bytes)497,148,48095,267,520
Size474.1 MB 90.9 MB
Events in quadrant A2,782,985634,293
Events in quadrant B3,504,496647,135
Events in quadrant C3,132,038647,342
Events in quadrant D5,278,456586,201

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115173
B0137262
C0125882
D01932411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5286100.189179%
B52862745.183504%
C5286591.116156%
D528557910.955535%

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 9440 5288 0 0 0.00% 0.00%
B 9440 5288 159 159 1.68% 3.01%
C 9440 5288 33 33 0.35% 0.62%
D 9440 5288 492 492 5.21% 9.30%

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 36181 255.95 698 687 138.7
A 15 223 22778 159.3 698 687 138.7
A 13 6 14276 97.99 698 687 138.7
B 5 172 618146 4836.64 684 670 127.7
B 0 229 94178 732.44 684 670 127.7
B 0 190 55794 431.78 684 670 127.7
C 15 214 222541 1409.39 691 699 157.4
C 0 10 130103 822.12 691 699 157.4
C 14 67 49345 309.05 691 699 157.4
D 8 195 750828 4299.32 645 636 174.5
D 7 80 712700 4080.81 645 636 174.5
D 1 47 349107 1997.07 645 636 174.5

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