ASTROSAT CZTI

Data Quality Report

Orbit 03198

Creation date: 2024-06-27T14:25:48.806738
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_127T01_9000000436_03198cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03198cztM0_level2_quad_clean.evt
Size (bytes)104,549,76024,209,280
Size99.7 MB 23.1 MB
Events in quadrant A582,996162,828
Events in quadrant B618,574166,421
Events in quadrant C1,157,014157,212
Events in quadrant D720,857153,030

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A025111
B025951
C043461
D030141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123200.000000%
B123230.243506%
C1232352.840909%
D1232272.191558%

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 1232 1232 0 0 0.00% 0.00%
B 1232 1232 0 0 0.00% 0.00%
C 1232 1232 36 36 2.92% 2.92%
D 1232 1232 29 29 2.35% 2.35%

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 3443 103.92 149 147 31.7
A 0 31 2948 88.32 149 147 31.7
A 13 14 1888 54.89 149 147 31.7
B 5 70 9855 309.36 156 152 31.4
B 0 229 4943 152.75 156 152 31.4
B 5 184 1905 55.89 156 152 31.4
C 12 206 413978 11568.57 146 147 35.8
C 14 223 152732 4265.49 146 147 35.8
C 8 128 6334 172.96 146 147 35.8
D 13 223 90833 2314.42 141 138 39.2
D 13 120 38820 987.12 141 138 39.2
D 5 233 29808 757.14 141 138 39.2

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