ASTROSAT CZTI

Data Quality Report

Orbit 09684

Creation date: 2024-06-27T15:49:22.177403
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/AS1A02_198T01_9000001376_09684cztM0_level2.evt modeM0/AS1A02_198T01_9000001376_09684cztM0_level2_quad_clean.evt
Size (bytes)439,790,40084,188,160
Size419.4 MB 80.3 MB
Events in quadrant A3,082,623530,467
Events in quadrant B3,233,932530,932
Events in quadrant C3,137,216535,657
Events in quadrant D3,441,061516,811

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0201
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01282
C01282
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013108171
B013473229
C013445163
D014259193

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62421262.018584%
B62221472.362584%
C62451181.889512%
D62391241.987498%

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 7519 6319 0 0 0.00% 0.00%
B 7519 6316 5 5 0.07% 0.08%
C 7519 6323 1 1 0.01% 0.02%
D 7519 6316 9 9 0.12% 0.14%

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 0 226 7556 42.15 797 780 160.8
A 12 194 6667 36.62 797 780 160.8
A 15 174 6505 35.61 797 780 160.8
B 0 214 74793 495.94 793 773 149.3
B 4 173 25817 167.8 793 773 149.3
B 10 245 24595 159.61 793 773 149.3
C 9 68 84946 475.85 779 784 176.9
C 10 22 11864 62.65 779 784 176.9
C 13 61 5911 28.99 779 784 176.9
D 8 195 243380 1307.66 775 755 185.5
D 1 52 77942 416.01 775 755 185.5
D 7 46 74848 399.33 775 755 185.5

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