ASTROSAT CZTI

Data Quality Report

Orbit 09740

Creation date: 2024-06-27T15:50:05.171902
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/AS1A03_119T01_9000001388_09740cztM0_level2.evt modeM0/AS1A03_119T01_9000001388_09740cztM0_level2_quad_clean.evt
Size (bytes)408,444,48084,729,600
Size389.5 MB 80.8 MB
Events in quadrant A2,983,665542,393
Events in quadrant B2,997,997557,742
Events in quadrant C2,891,138528,634
Events in quadrant D3,080,558509,834

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01272893
B012802142
C012711140
D012993125

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6139300.488679%
B6113470.768853%
C6118230.375940%
D6124150.244938%

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 7454 6178 1 1 0.01% 0.02%
B 7454 6178 0 0 0.00% 0.00%
C 7454 6176 5 5 0.07% 0.08%
D 7454 6175 1 1 0.01% 0.02%

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 14 111 15831 97.18 770 756 155.1
A 0 226 7066 40.68 770 756 155.1
A 12 194 6248 35.4 770 756 155.1
B 12 111 16976 111.01 769 752 146.2
B 0 229 14752 95.79 769 752 146.2
B 11 111 13496 87.2 769 752 146.2
C 14 234 15723 88.48 733 739 169.4
C 9 237 12634 70.24 733 739 169.4
C 13 61 5693 29.25 733 739 169.4
D 1 52 267976 1420.55 727 713 188.1
D 8 195 21490 110.43 727 713 188.1
D 2 234 17555 89.52 727 713 188.1

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