ASTROSAT CZTI

Data Quality Report

Orbit 44506

Creation date: 2024-06-27T23:02:27.047124
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/AS1A13_004T09_9000005992_44506cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44506cztM0_level2_quad_clean.evt
Size (bytes)16,626,2404,199,040
Size15.9 MB 4.0 MB
Events in quadrant A198,93126,161
Events in quadrant B126,52827,347
Events in quadrant C126,83224,351
Events in quadrant D138,19722,203

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08290
B05580
C05590
D05810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27220.735294%
B27110.369004%
C27100.000000%
D27100.000000%

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 272 272 1 1 0.37% 0.37%
B 271 271 1 1 0.37% 0.37%
C 271 271 0 0 0.00% 0.00%
D 271 271 0 0 0.00% 0.00%

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 66623 7880.81 30 29 8.5
A 13 248 13937 1645.89 30 29 8.5
A 0 243 593 66.74 30 29 8.5
B 5 172 5502 680.62 30 29 8.0
B 0 186 1855 227.08 30 29 8.0
B 5 235 1015 122.62 30 29 8.0
C 3 233 7649 858.87 29 29 8.9
C 14 254 3070 342.76 29 29 8.9
C 13 61 203 19.61 29 29 8.9
D 2 249 7419 785.03 30 28 9.4
D 5 222 5706 603.09 30 28 9.4
D 1 52 4851 512.27 30 28 9.4

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