ASTROSAT CZTI

Data Quality Report

Orbit 26006

Creation date: 2024-06-27T19:23:45.924284
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/AS1A07_068T01_9000003760_26006cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_26006cztM0_level2_quad_clean.evt
Size (bytes)616,037,76068,166,720
Size587.5 MB 65.0 MB
Events in quadrant A3,736,665420,932
Events in quadrant B4,217,753402,680
Events in quadrant C3,295,778403,862
Events in quadrant D6,947,943363,870

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152670
B0167060
C0139380
D0252540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67711331.964259%
B67713895.745089%
C67711011.491656%
D677197214.355339%

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 7756 6771 61 61 0.79% 0.90%
B 7756 6771 258 258 3.33% 3.81%
C 7756 6771 0 0 0.00% 0.00%
D 7756 6771 819 819 10.56% 12.10%

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 13 472205 2773.45 847 830 170.0
A 13 254 10231 55.31 847 830 170.0
A 3 137 7680 40.3 847 830 170.0
B 10 245 905383 5697.06 829 808 158.8
B 0 190 56770 352.45 829 808 158.8
B 12 111 19703 119.0 829 808 158.8
C 14 238 131781 686.55 810 815 190.8
C 3 233 7645 35.8 810 815 190.8
C 13 61 5549 24.82 810 815 190.8
D 1 52 3936244 20880.05 780 761 188.5
D 8 195 29653 153.29 780 761 188.5
D 2 234 24607 126.52 780 761 188.5

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