ASTROSAT CZTI

Data Quality Report

Orbit 07714

Creation date: 2024-06-27T15:23:00.995186
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/AS1A02_158T01_9000001064_07714cztM0_level2.evt modeM0/AS1A02_158T01_9000001064_07714cztM0_level2_quad_clean.evt
Size (bytes)444,078,72092,280,960
Size423.5 MB 88.0 MB
Events in quadrant A3,086,996591,464
Events in quadrant B3,163,126605,293
Events in quadrant C3,284,097596,478
Events in quadrant D3,487,456562,672

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130323
B0131952
C0136082
D0143362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6285480.763723%
B6285590.938743%
C6285390.620525%
D62861472.338530%

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 7570 6286 0 0 0.00% 0.00%
B 7570 6286 0 0 0.00% 0.00%
C 7570 6286 2 2 0.03% 0.03%
D 7571 6287 96 96 1.27% 1.53%

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 12 112 7634 42.51 799 784 161.2
A 0 226 7589 42.23 799 784 161.2
A 12 194 6944 38.23 799 784 161.2
B 0 214 30642 199.73 801 782 149.5
B 0 230 15240 96.71 801 782 149.5
B 12 111 14916 94.54 801 782 149.5
C 9 68 196569 1072.12 788 795 182.6
C 13 61 6080 28.94 788 795 182.6
C 8 222 5572 26.16 788 795 182.6
D 13 105 330741 1743.94 781 759 189.2
D 9 101 58914 307.35 781 759 189.2
D 13 112 46292 240.64 781 759 189.2

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