ASTROSAT CZTI

Data Quality Report

Orbit 16329

Creation date: 2024-06-27T17:21:06.736575
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_096T04_9000002406_16329cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16329cztM0_level2_quad_clean.evt
Size (bytes)429,984,00096,978,240
Size410.1 MB 92.5 MB
Events in quadrant A2,908,226629,031
Events in quadrant B3,764,693634,352
Events in quadrant C3,044,688629,973
Events in quadrant D2,894,895622,992

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124892
B0148951
C0125061
D0125301

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60231071.776523%
B60232554.233771%
C60231332.208202%
D6023861.427860%

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 7019 6025 7 7 0.10% 0.12%
B 7019 6025 100 100 1.42% 1.66%
C 7019 6025 0 0 0.00% 0.00%
D 7019 6025 6 6 0.09% 0.10%

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 15 174 70393 474.87 736 720 146.7
A 0 226 6588 39.99 736 720 146.7
A 12 194 5429 32.09 736 720 146.7
B 3 112 629694 4594.85 728 710 136.9
B 4 173 109248 792.89 728 710 136.9
B 0 189 50729 365.4 728 710 136.9
C 14 238 112117 670.17 720 724 166.2
C 3 233 103815 620.23 720 724 166.2
C 0 207 22273 129.65 720 724 166.2
D 1 52 35822 200.48 732 713 175.1
D 2 136 26060 144.74 732 713 175.1
D 2 234 25465 141.34 732 713 175.1

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