ASTROSAT CZTI

Data Quality Report

Orbit 15095

Creation date: 2024-06-27T17:03:40.219095
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/AS1G08_028T01_9000002220_15095cztM0_level2.evt modeM0/AS1G08_028T01_9000002220_15095cztM0_level2_quad_clean.evt
Size (bytes)437,166,72094,654,080
Size416.9 MB 90.3 MB
Events in quadrant A3,100,708611,592
Events in quadrant B3,238,961634,843
Events in quadrant C3,516,748607,309
Events in quadrant D2,959,337577,514

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131373
B0135142
C0144092
D0130272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6232400.641849%
B6232600.962773%
C6232380.609756%
D6232220.353017%

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 7493 6234 0 0 0.00% 0.00%
B 7493 6234 0 0 0.00% 0.00%
C 7493 6234 0 0 0.00% 0.00%
D 7493 6234 3 3 0.04% 0.05%

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 12 189 8422 47.44 804 789 160.9
A 0 226 7135 39.44 804 789 160.9
A 12 194 5853 31.47 804 789 160.9
B 3 64 73097 477.59 808 790 151.4
B 12 111 18046 113.98 808 790 151.4
B 11 111 15779 99.0 808 790 151.4
C 3 233 389254 2131.14 786 795 182.3
C 3 9 32160 172.07 786 795 182.3
C 0 207 27509 146.56 786 795 182.3
D 2 234 19601 99.45 779 758 189.5
D 13 104 18753 94.98 779 758 189.5
D 10 70 9757 47.5 779 758 189.5

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