ASTROSAT CZTI

Data Quality Report

Orbit 49685

Creation date: 2024-12-11T08:12:00.511411
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/AS1T05_233T01_9000006438_49685cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49685cztM0_level2_quad_clean.evt
Size (bytes)1,253,986,56047,252,160
Size1.2 GB 45.1 MB
Events in quadrant A18,263,632133,716
Events in quadrant B5,367,015692,111
Events in quadrant C5,535,1494,649
Events in quadrant D16,703,63997,917

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0591230
B0207330
C0215670
D0544170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70657065100.000000%
B70665347.557317%
C70667066100.000000%
D7065706499.985846%

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 7064 7064 6858 6858 97.08% 97.08%
B 7066 7066 391 391 5.53% 5.53%
C 7065 7065 0 0 0.00% 0.00%
D 7064 7064 6310 6310 89.33% 89.33%

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 0 98 6088274 114933.66 168 162 53.0
A 10 83 2887916 54516.1 168 162 53.0
A 0 99 2064798 38976.97 168 162 53.0
B 3 232 592355 3826.99 720 697 154.6
B 10 44 538325 3477.51 720 697 154.6
B 7 252 213180 1374.39 720 697 154.6
C 15 190 919579 64318.86 12 10 14.3
C 15 181 810719 56704.69 12 10 14.3
C 15 180 747215 52262.93 12 10 14.3
D 7 45 2424330 36047.09 140 130 67.3
D 12 191 1834726 27279.87 140 130 67.3
D 7 60 1477721 21971.31 140 130 67.3

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