ASTROSAT CZTI

Data Quality Report

Orbit 03154

Creation date: 2024-06-27T14:25:17.997904
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_218T02_9000000434_03154cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03154cztM0_level2_quad_clean.evt
Size (bytes)451,402,56077,051,520
Size430.5 MB 73.5 MB
Events in quadrant A3,735,616472,068
Events in quadrant B3,241,964490,475
Events in quadrant C3,093,256471,548
Events in quadrant D3,166,500453,870

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155082
B0138621
C0136951
D0139521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63831842.882657%
B6383651.018330%
C6383871.362995%
D6383460.720664%

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 7663 6384 123 123 1.61% 1.93%
B 7663 6384 26 26 0.34% 0.41%
C 7663 6384 42 42 0.55% 0.66%
D 7663 6384 33 33 0.43% 0.52%

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 14 249 801040 5356.01 741 725 149.4
A 0 31 28765 187.65 741 725 149.4
A 0 149 23852 154.77 741 725 149.4
B 4 81 161685 1110.22 762 744 145.0
B 2 249 39904 270.13 762 744 145.0
B 15 85 36835 248.96 762 744 145.0
C 14 223 194352 1173.3 717 718 165.0
C 14 234 60193 360.38 717 718 165.0
C 6 80 20300 118.65 717 718 165.0
D 12 233 67371 392.19 713 693 170.0
D 5 233 57041 331.43 713 693 170.0
D 7 39 57026 331.35 713 693 170.0

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