ASTROSAT CZTI

Data Quality Report

Orbit 08515

Creation date: 2024-06-27T15:33:45.212545
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/AS1G07_060T01_9000001200_08515cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08515cztM0_level2_quad_clean.evt
Size (bytes)541,402,56085,737,600
Size516.3 MB 81.8 MB
Events in quadrant A3,906,077515,641
Events in quadrant B4,358,544511,695
Events in quadrant C3,736,937511,638
Events in quadrant D3,846,271496,623

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01706
B01706
C01708
D01706

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018127835
B0193181078
C017696813
D018258844

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80764105.076771%
B80264585.706454%
C80852513.104515%
D80723153.902379%

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 8824 8291 17 17 0.19% 0.21%
B 8824 8259 37 37 0.42% 0.45%
C 8824 8315 0 0 0.00% 0.00%
D 8824 8307 47 47 0.53% 0.57%

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 5 16 147153 724.41 973 947 201.8
A 12 194 8897 39.39 973 947 201.8
A 0 226 8861 39.21 973 947 201.8
B 5 255 261746 1369.3 969 943 190.5
B 10 16 252862 1322.66 969 943 190.5
B 0 214 26757 135.53 969 943 190.5
C 8 128 16049 67.9 950 952 222.3
C 13 61 7282 28.47 950 952 222.3
C 8 112 7178 28.0 950 952 222.3
D 7 71 126484 523.4 941 916 239.9
D 1 52 50602 207.1 941 916 239.9
D 8 230 33543 136.0 941 916 239.9

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