ASTROSAT CZTI

Data Quality Report

Orbit 47087

Creation date: 2024-06-27T23:31:34.995292
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/AS1C09_003T01_9000006298_47087cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47087cztM0_level2_quad_clean.evt
Size (bytes)551,759,040119,364,480
Size526.2 MB 113.8 MB
Events in quadrant A7,452,926790,294
Events in quadrant B4,446,882801,142
Events in quadrant C3,448,233778,448
Events in quadrant D4,481,869711,608

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279571
B0184211
C0160581
D0186681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76604335.652742%
B76614235.521472%
C76611772.310403%
D76613524.594700%

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 7720 7661 2 2 0.03% 0.03%
B 7721 7662 64 64 0.83% 0.84%
C 7721 7662 4 4 0.05% 0.05%
D 7721 7662 132 132 1.71% 1.72%

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 10 83 4047768 22585.84 861 841 179.2
A 13 248 26144 141.21 861 841 179.2
A 9 191 17835 94.84 861 841 179.2
B 3 112 415363 2472.66 852 823 167.6
B 0 190 240773 1431.26 852 823 167.6
B 0 200 155913 925.08 852 823 167.6
C 14 254 56566 284.67 842 843 195.7
C 12 2 34589 172.39 842 843 195.7
C 3 233 33140 164.99 842 843 195.7
D 1 47 293781 1385.2 845 814 211.5
D 13 249 168347 792.13 845 814 211.5
D 2 120 152141 715.5 845 814 211.5

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