ASTROSAT CZTI

Data Quality Report

Orbit 05960

Creation date: 2024-06-27T15:01:13.195134
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/AS1G06_157T01_9000000772_05960cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05960cztM0_level2_quad_clean.evt
Size (bytes)2,760,759,360366,033,600
Size2.6 GB 349.1 MB
Events in quadrant A14,032,0952,413,055
Events in quadrant B13,182,0782,450,768
Events in quadrant C32,355,9252,027,609
Events in quadrant D22,111,3802,223,945

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06187222
B05915731
C0116574125
D08660652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05860
B05860
C05860
D05860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A286144751.660027%
B286102710.947221%
C28605795027.792344%
D2860925478.902793%

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 32512 28624 152 152 0.47% 0.53%
B 32512 28624 3 3 0.01% 0.01%
C 32512 28613 6394 6394 19.67% 22.35%
D 32512 28625 2494 2494 7.67% 8.71%

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 4 2 1308374 2008.74 3203 3132 649.8
A 13 251 233912 355.16 3203 3132 649.8
A 8 192 130527 196.06 3203 3132 649.8
B 15 204 168986 268.8 3253 3176 616.9
B 0 214 132377 209.45 3253 3176 616.9
B 4 81 120590 190.34 3253 3176 616.9
C 9 247 21639367 34576.39 2718 2727 625.8
C 9 54 46659 70.21 2718 2727 625.8
C 14 206 35857 52.94 2718 2727 625.8
D 1 20 9027642 12171.59 3051 2958 741.5
D 10 172 1209959 1627.88 3051 2958 741.5
D 8 195 86695 112.94 3051 2958 741.5

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