ASTROSAT CZTI

Data Quality Report

Orbit 20586

Creation date: 2024-06-27T18:17:08.262149
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/AS1A06_003T04_9000003046_20586cztM0_level2.evt modeM0/AS1A06_003T04_9000003046_20586cztM0_level2_quad_clean.evt
Size (bytes)533,001,600100,385,280
Size508.3 MB 95.7 MB
Events in quadrant A3,337,706648,112
Events in quadrant B4,063,465650,533
Events in quadrant C3,398,886634,510
Events in quadrant D4,865,773618,107

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145262
B0168362
C0145702
D0193852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7019380.541388%
B70192032.892150%
C7019811.154011%
D70193484.957971%

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 7704 7020 0 0 0.00% 0.00%
B 7704 7020 68 68 0.88% 0.97%
C 7704 7020 0 0 0.00% 0.00%
D 7704 7020 203 203 2.63% 2.89%

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 0 226 7557 38.4 865 846 174.8
A 12 194 7218 36.46 865 846 174.8
A 3 137 6782 33.96 865 846 174.8
B 7 220 373884 2283.06 859 837 163.4
B 5 172 65450 395.43 859 837 163.4
B 0 189 47538 285.81 859 837 163.4
C 14 238 129613 656.68 833 839 196.1
C 8 208 18925 92.23 833 839 196.1
C 13 61 5877 25.69 833 839 196.1
D 5 222 982485 4876.94 830 806 201.3
D 1 20 206040 1019.59 830 806 201.3
D 13 153 166226 821.8 830 806 201.3

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