ASTROSAT CZTI

Data Quality Report

Orbit 13609

Creation date: 2024-06-27T16:43:29.271116
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/AS1G08_029T01_9000002010_13609cztM0_level2.evt modeM0/AS1G08_029T01_9000002010_13609cztM0_level2_quad_clean.evt
Size (bytes)549,158,40099,092,160
Size523.7 MB 94.5 MB
Events in quadrant A3,753,813631,042
Events in quadrant B4,206,219629,615
Events in quadrant C3,838,413616,575
Events in quadrant D4,318,291596,372

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159163
B0171302
C0160282
D0175522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75792663.509698%
B75793474.578440%
C75791992.625676%
D75792383.140256%

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 8730 7583 3 3 0.03% 0.04%
B 8730 7583 39 39 0.45% 0.51%
C 8730 7583 9 9 0.10% 0.12%
D 8730 7583 44 44 0.50% 0.58%

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 1 162 31198 153.21 955 934 197.5
A 2 250 17636 84.55 955 934 197.5
A 15 69 16616 79.39 955 934 197.5
B 0 219 280153 1522.34 944 920 183.4
B 0 182 44081 235.31 944 920 183.4
B 4 142 42846 228.58 944 920 183.4
C 3 233 183696 849.73 922 924 215.1
C 14 234 31727 143.21 922 924 215.1
C 0 207 25069 112.25 922 924 215.1
D 12 6 576596 2535.3 931 907 227.1
D 8 195 99881 435.87 931 907 227.1
D 13 122 64344 279.37 931 907 227.1

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