ASTROSAT CZTI

Data Quality Report

Orbit 11339

Creation date: 2024-06-27T16:11:32.459484
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/AS1G08_062T01_9000001660_11339cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11339cztM0_level2_quad_clean.evt
Size (bytes)633,939,84080,478,720
Size604.6 MB 76.8 MB
Events in quadrant A4,594,662490,199
Events in quadrant B5,049,014475,878
Events in quadrant C3,301,748497,429
Events in quadrant D5,749,642455,688

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184042
B0198131
C0150581
D0221261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74321632.193219%
B74325307.131324%
C7432590.793864%
D74326638.920883%

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 7797 7433 31 31 0.40% 0.42%
B 7797 7433 292 292 3.75% 3.93%
C 7797 7433 0 0 0.00% 0.00%
D 7797 7433 475 475 6.09% 6.39%

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 931957 5280.76 858 840 176.3
A 15 174 155773 878.69 858 840 176.3
A 1 162 63460 355.14 858 840 176.3
B 4 239 1177151 7189.24 848 825 163.6
B 3 64 424146 2587.17 848 825 163.6
B 11 51 38194 228.38 848 825 163.6
C 13 61 6181 26.95 846 849 197.9
C 13 250 3221 11.99 846 849 197.9
C 3 202 2119 6.42 846 849 197.9
D 2 14 849361 4368.31 804 780 194.3
D 1 52 518931 2667.33 804 780 194.3
D 10 253 403025 2070.67 804 780 194.3

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