ASTROSAT CZTI

Data Quality Report

Orbit 09286

Creation date: 2024-06-27T15:43:57.143193
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_077T02_9000001308_09286cztM0_level2.evt modeM0/AS1G07_077T02_9000001308_09286cztM0_level2_quad_clean.evt
Size (bytes)1,062,999,360194,374,080
Size1013.8 MB 185.4 MB
Events in quadrant A9,175,5261,221,495
Events in quadrant B7,022,7651,249,620
Events in quadrant C6,375,0511,244,377
Events in quadrant D8,656,2031,187,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037334627
B030666394
C029288327
D035632521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02942
B02942
C02942
D02944

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142083802.674550%
B142502061.445614%
C142751260.882662%
D142364172.929194%

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 16255 14416 21 21 0.13% 0.15%
B 16255 14421 12 12 0.07% 0.08%
C 16255 14424 0 0 0.00% 0.00%
D 16255 14420 212 212 1.30% 1.47%

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 8 5 2488213 7487.85 1639 1601 332.1
A 15 223 116016 344.53 1639 1601 332.1
A 1 162 108912 323.14 1639 1601 332.1
B 0 214 163625 513.41 1664 1622 315.5
B 8 234 156839 491.9 1664 1622 315.5
B 4 80 87562 272.36 1664 1622 315.5
C 14 67 18916 45.7 1624 1629 378.3
C 12 4 12928 29.87 1624 1629 378.3
C 13 61 12425 28.54 1624 1629 378.3
D 1 52 1603106 4053.26 1592 1546 395.1
D 12 233 534395 1348.54 1592 1546 395.1
D 2 152 167695 420.49 1592 1546 395.1

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