ASTROSAT CZTI

Data Quality Report

Orbit 05538

Creation date: 2024-06-27T14:56:27.524483
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/AS1G06_084T01_9000000710_05538cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05538cztM0_level2_quad_clean.evt
Size (bytes)1,222,188,480179,363,520
Size1.1 GB 171.1 MB
Events in quadrant A8,375,2761,045,548
Events in quadrant B9,200,3641,031,357
Events in quadrant C8,945,9511,061,245
Events in quadrant D9,223,6891,005,452

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04840610214
B05048011091
C05029410902
D05274211987

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277
B0274
C0274
D0275

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480100
B048092
C047979
D048098

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A187301260.672718%
B186081860.999570%
C186521620.868540%
D184673181.721991%

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 26338 21703 6 6 0.02% 0.03%
B 26338 21643 9 9 0.03% 0.04%
C 26338 21637 37 37 0.14% 0.17%
D 26337 21564 166 166 0.63% 0.77%

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 7 16 64684 140.82 2151 2099 444.4
A 0 50 37873 80.5 2151 2099 444.4
A 12 194 20876 42.25 2151 2099 444.4
B 15 204 551067 1317.68 2165 2110 416.6
B 4 48 63410 147.14 2165 2110 416.6
B 10 246 58677 135.78 2165 2110 416.6
C 1 16 530936 1089.17 2094 2103 485.5
C 9 16 228175 465.61 2094 2103 485.5
C 1 241 18005 32.75 2094 2103 485.5
D 11 192 733929 1446.03 2060 1992 506.2
D 2 152 255256 500.35 2060 1992 506.2
D 12 233 180184 352.04 2060 1992 506.2

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