ASTROSAT CZTI

Data Quality Report

Orbit 43813

Creation date: 2024-06-27T22:56:06.153541
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/AS1A13_018T01_9000005906_43813cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43813cztM0_level2_quad_clean.evt
Size (bytes)853,214,400116,640,000
Size813.7 MB 111.2 MB
Events in quadrant A6,017,748826,315
Events in quadrant B5,819,133840,621
Events in quadrant C11,488,890597,296
Events in quadrant D7,650,772721,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235060
B0226600
C0395140
D0281050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78494425.631291%
B78506207.898089%
C7850267734.101911%
D785080810.292994%

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 7849 7849 336 336 4.28% 4.28%
B 7850 7850 309 309 3.94% 3.94%
C 7850 7850 2483 2483 31.63% 31.63%
D 7850 7850 708 708 9.02% 9.02%

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 15 223 1141513 6078.43 896 878 187.7
A 10 83 1105859 5888.43 896 878 187.7
A 13 248 130917 692.98 896 878 187.7
B 0 200 861142 4844.02 890 861 177.6
B 5 235 758518 4266.17 890 861 177.6
B 5 172 311969 1751.77 890 861 177.6
C 15 174 5450105 30577.91 755 759 178.2
C 15 158 1558179 8739.15 755 759 178.2
C 15 190 517796 2901.25 755 759 178.2
D 1 52 1655771 7603.61 860 835 217.7
D 12 233 470031 2155.72 860 835 217.7
D 5 235 417068 1912.39 860 835 217.7

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