ASTROSAT CZTI

Data Quality Report

Orbit 04170

Creation date: 2024-06-27T14:38:20.271567
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/AS1G05_240T01_9000000536_04170cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04170cztM0_level2_quad_clean.evt
Size (bytes)458,369,28060,405,120
Size437.1 MB 57.6 MB
Events in quadrant A3,583,702351,156
Events in quadrant B3,598,631351,982
Events in quadrant C3,014,638342,773
Events in quadrant D3,245,171331,511

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147243
B0150042
C0132962
D0139972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64741432.208835%
B6474951.467408%
C6474260.401606%
D6474250.386160%

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 7629 6475 39 39 0.51% 0.60%
B 7629 6475 9 9 0.12% 0.14%
C 7629 6475 0 0 0.00% 0.00%
D 7629 6475 0 0 0.00% 0.00%

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 3 1 254081 1575.39 792 775 160.8
A 0 199 179048 1108.74 792 775 160.8
A 15 234 77142 474.95 792 775 160.8
B 14 167 142214 919.93 801 783 153.7
B 4 81 119137 769.82 801 783 153.7
B 8 3 90107 581.0 801 783 153.7
C 9 144 18805 100.98 765 771 178.6
C 13 61 6425 31.66 765 771 178.6
C 10 65 3594 15.81 765 771 178.6
D 2 232 221994 1192.56 763 740 185.5
D 2 14 29162 153.19 763 740 185.5
D 12 233 25985 136.07 763 740 185.5

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