ASTROSAT CZTI

Data Quality Report

Orbit 08328

Creation date: 2024-06-27T15:31:11.650849
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_029T01_9000001158_08328cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08328cztM0_level2_quad_clean.evt
Size (bytes)469,578,24096,805,440
Size447.8 MB 92.3 MB
Events in quadrant A3,335,670609,221
Events in quadrant B3,521,521614,768
Events in quadrant C3,393,343608,190
Events in quadrant D3,473,281590,369

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150812
B0153681
C0152591
D0155881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7322881.201857%
B73221131.543294%
C7322690.942365%
D7322690.942365%

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 7607 7324 0 0 0.00% 0.00%
B 7607 7324 1 1 0.01% 0.01%
C 7607 7324 7 7 0.09% 0.10%
D 7607 7324 6 6 0.08% 0.08%

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 13 251 11266 58.31 862 839 178.8
A 0 226 7940 39.71 862 839 178.8
A 12 194 7647 38.07 862 839 178.8
B 0 214 68493 404.25 865 844 167.3
B 0 219 50507 296.77 865 844 167.3
B 4 81 25088 144.87 865 844 167.3
C 9 54 94312 474.16 844 848 197.1
C 13 61 6507 28.71 844 848 197.1
C 8 128 5179 21.97 844 848 197.1
D 1 52 181756 851.58 840 819 212.5
D 2 14 51992 240.84 840 819 212.5
D 2 152 32359 148.44 840 819 212.5

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