ASTROSAT CZTI

Data Quality Report

Orbit 09760

Creation date: 2024-06-27T15:50:19.684059
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_080T01_9000001392_09760cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09760cztM0_level2_quad_clean.evt
Size (bytes)540,797,76086,846,400
Size515.7 MB 82.8 MB
Events in quadrant A3,693,358536,134
Events in quadrant B4,113,863535,842
Events in quadrant C3,508,403512,735
Events in quadrant D4,547,418518,061

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016984692
B018093731
C0168231172
D019504786

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016210
B01626
C016212
D01619

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76444986.514914%
B76355517.216765%
C73943204.327833%
D76285787.577347%

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 8217 7798 4 4 0.05% 0.05%
B 8217 7774 42 42 0.51% 0.54%
C 8217 7499 0 0 0.00% 0.00%
D 8217 7788 80 80 0.97% 1.03%

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 14 111 42347 215.61 936 911 192.2
A 15 239 17960 88.71 936 911 192.2
A 13 248 16544 81.35 936 911 192.2
B 10 245 221745 1207.77 936 909 182.8
B 0 214 128606 698.39 936 909 182.8
B 0 187 52951 284.62 936 909 182.8
C 8 222 7325 30.84 896 895 208.5
C 13 61 6766 28.16 896 895 208.5
C 14 67 5493 22.05 896 895 208.5
D 1 52 417711 1906.19 906 882 218.7
D 13 137 297969 1358.6 906 882 218.7
D 8 195 160303 729.04 906 882 218.7

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