ASTROSAT CZTI

Data Quality Report

Orbit 07232

Creation date: 2024-06-27T15:17:36.824511
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/AS1G06_036T01_9000000988_07232cztM0_level2.evt modeM0/AS1G06_036T01_9000000988_07232cztM0_level2_quad_clean.evt
Size (bytes)519,171,84086,400,000
Size495.1 MB 82.4 MB
Events in quadrant A3,348,630544,922
Events in quadrant B3,678,627546,031
Events in quadrant C4,266,169545,703
Events in quadrant D3,980,416517,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145553
B0154362
C0173332
D0166602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6627560.845028%
B66272193.304663%
C6627470.709220%
D66271622.444545%

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 7657 6627 1 1 0.01% 0.02%
B 7657 6628 156 156 2.04% 2.35%
C 7657 6627 8 8 0.10% 0.12%
D 7657 6627 102 102 1.33% 1.54%

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 8 15 308281 1937.66 780 763 158.7
A 3 1 17151 103.26 780 763 158.7
A 14 111 14999 89.7 780 763 158.7
B 4 81 520568 3479.57 776 756 149.4
B 0 214 115482 767.96 776 756 149.4
B 12 111 15103 96.03 776 756 149.4
C 9 68 1325209 7525.08 753 756 176.0
C 13 61 5683 27.99 753 756 176.0
C 8 222 2670 10.87 753 756 176.0
D 2 216 630609 3387.55 754 729 185.9
D 13 137 267452 1434.46 754 729 185.9
D 14 34 109333 584.08 754 729 185.9

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