ASTROSAT CZTI

Data Quality Report

Orbit 09706

Creation date: 2024-06-27T15:49:35.084927
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_029T01_9000001384_09706cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09706cztM0_level2_quad_clean.evt
Size (bytes)1,198,172,160228,191,040
Size1.1 GB 217.6 MB
Events in quadrant A8,699,1701,434,621
Events in quadrant B8,587,6851,445,113
Events in quadrant C8,166,9951,419,536
Events in quadrant D9,611,5541,367,537

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0377466
B0374515
C0370443
D0407475

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03680
B03680
C03680
D03680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180541030.570511%
B180541290.714523%
C18055900.498477%
D180541360.753296%

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 20150 18058 12 12 0.06% 0.07%
B 20150 18058 9 9 0.04% 0.05%
C 20150 18058 34 34 0.17% 0.19%
D 20150 18058 117 117 0.58% 0.65%

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 208912 481.08 2113 2070 430.0
A 15 174 103353 235.57 2113 2070 430.0
A 1 178 74762 169.07 2113 2070 430.0
B 0 214 167194 409.83 2124 2070 402.9
B 0 229 55272 132.04 2124 2070 402.9
B 12 111 44638 105.65 2124 2070 402.9
C 14 234 168989 352.86 2041 2052 473.1
C 13 61 15253 27.9 2041 2052 473.1
C 14 238 14219 25.72 2041 2052 473.1
D 1 52 1600384 3131.81 2023 1972 510.4
D 7 71 85707 164.06 2023 1972 510.4
D 12 233 79942 152.77 2023 1972 510.4

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