ASTROSAT CZTI

Data Quality Report

Orbit 44803

Creation date: 2024-06-27T23:06:45.680907
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_004T13_9000006022_44803cztM0_level2.fits modeM0/AS1A13_004T13_9000006022_44803cztM0_level2_quad_clean.evt
Size (bytes)711,529,92086,892,480
Size678.6 MB 82.9 MB
Events in quadrant A14,004,376211,636
Events in quadrant B3,490,686700,561
Events in quadrant C2,871,895675,843
Events in quadrant D5,476,343597,858

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0459901
B0147511
C0132711
D0206819

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372488176.600753%
B63721802.824859%
C6373600.941472%
D63724857.611425%

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 7341 6371 4444 4444 60.54% 69.75%
B 7342 6372 92 92 1.25% 1.44%
C 7343 6373 10 10 0.14% 0.16%
D 7342 6372 445 445 6.06% 6.98%

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 15 223 10881492 113420.32 457 447 95.9
A 10 83 1325511 13812.01 457 447 95.9
A 13 248 17780 180.67 457 447 95.9
B 0 189 393310 2842.77 696 674 138.1
B 5 255 149802 1079.72 696 674 138.1
B 5 172 54351 388.63 696 674 138.1
C 14 254 97602 594.58 690 692 163.0
C 1 3 47547 287.47 690 692 163.0
C 3 233 17335 102.11 690 692 163.0
D 5 235 608830 3566.1 677 654 170.5
D 1 52 522507 3059.93 677 654 170.5
D 11 241 400551 2344.83 677 654 170.5

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