ASTROSAT CZTI

Data Quality Report

Orbit 04504

Creation date: 2024-06-27T14:43:02.922293
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/AS1G05_083T03_9000000566_04504cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04504cztM0_level2_quad_clean.evt
Size (bytes)507,245,76079,833,600
Size483.7 MB 76.1 MB
Events in quadrant A3,810,320495,690
Events in quadrant B4,353,937488,025
Events in quadrant C2,943,289497,253
Events in quadrant D3,808,871478,733

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157262
B0170883
C0134021
D0158851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65611862.834934%
B65603024.603659%
C6561450.685871%
D65611412.149063%

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 7256 6562 77 77 1.06% 1.17%
B 7256 6562 169 169 2.33% 2.58%
C 7256 6562 0 0 0.00% 0.00%
D 7256 6562 78 78 1.07% 1.19%

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 31 324910 2091.16 759 743 155.0
A 0 118 188806 1213.17 759 743 155.0
A 0 47 143270 919.42 759 743 155.0
B 10 16 1058221 7209.49 759 739 146.7
B 15 204 199893 1357.75 759 739 146.7
B 4 80 40879 273.66 759 739 146.7
C 9 247 45962 263.52 738 740 171.6
C 1 16 6866 35.7 738 740 171.6
C 13 61 6104 31.26 738 740 171.6
D 14 34 618888 3478.27 738 715 177.7
D 13 235 218847 1227.36 738 715 177.7
D 1 20 44100 244.11 738 715 177.7

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