ASTROSAT CZTI

Data Quality Report

Orbit 17132

Creation date: 2024-06-27T17:32:34.192943
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/AS1A05_056T01_9000002540_17132cztM0_level2.evt modeM0/AS1A05_056T01_9000002540_17132cztM0_level2_quad_clean.evt
Size (bytes)527,901,12093,499,200
Size503.4 MB 89.2 MB
Events in quadrant A3,384,430596,633
Events in quadrant B3,469,971603,782
Events in quadrant C5,152,383563,879
Events in quadrant D3,494,312567,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147332
B0148202
C0206192
D0153612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7162710.991343%
B7162741.033231%
C71621692.359676%
D7162680.949455%

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 8777 7164 0 0 0.00% 0.00%
B 8777 7164 0 0 0.00% 0.00%
C 8777 7164 2 2 0.02% 0.03%
D 8777 7164 23 23 0.26% 0.32%

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 18401 98.78 876 857 177.6
A 0 226 7483 37.31 876 857 177.6
A 3 137 6781 33.35 876 857 177.6
B 0 229 56787 327.34 873 852 170.9
B 12 111 21068 118.31 873 852 170.9
B 11 111 18374 102.54 873 852 170.9
C 3 233 1790353 9133.15 829 831 195.9
C 14 238 126369 640.7 829 831 195.9
C 13 61 5825 25.49 829 831 195.9
D 5 222 262108 1268.44 846 821 206.0
D 2 234 27309 128.59 846 821 206.0
D 13 238 15439 70.96 846 821 206.0

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