ASTROSAT CZTI

Data Quality Report

Orbit 30579

Creation date: 2024-06-27T20:17:13.210422
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/AS1A10_053T23_9000004404_30579cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30579cztM0_level2_quad_clean.evt
Size (bytes)372,836,16050,855,040
Size355.6 MB 48.5 MB
Events in quadrant A1,937,825321,309
Events in quadrant B3,290,478317,198
Events in quadrant C2,002,707305,444
Events in quadrant D3,778,871304,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085202
B0129032
C085642
D0139792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4131832.009199%
B41321684.065828%
C41321152.783156%
D413258314.109390%

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 4181 4132 0 0 0.00% 0.00%
B 4182 4133 11 11 0.26% 0.27%
C 4182 4133 1 1 0.02% 0.02%
D 4182 4133 552 552 13.20% 13.36%

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 13 254 7659 69.54 501 491 103.1
A 3 137 5110 44.81 501 491 103.1
A 0 226 4201 35.99 501 491 103.1
B 6 159 1174779 12044.03 492 478 97.5
B 6 36 185919 1901.95 492 478 97.5
B 12 111 11997 118.14 492 478 97.5
C 14 238 77780 682.55 480 482 113.2
C 3 233 20067 172.94 480 482 113.2
C 10 22 10241 86.17 480 482 113.2
D 1 52 1531719 13316.06 473 458 115.0
D 13 104 188417 1634.52 473 458 115.0
D 8 195 118332 1025.05 473 458 115.0

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