ASTROSAT CZTI

Data Quality Report

Orbit 16013

Creation date: 2024-06-27T17:16:32.097105
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/AS1C03_015T03_9000002366_16013cztM0_level2.evt modeM0/AS1C03_015T03_9000002366_16013cztM0_level2_quad_clean.evt
Size (bytes)347,391,36099,480,960
Size331.3 MB 94.9 MB
Events in quadrant A2,484,597661,078
Events in quadrant B2,699,364675,326
Events in quadrant C2,547,455655,705
Events in quadrant D2,425,048646,528

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110692
B0117471
C0111701
D0111011

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5348190.355273%
B5348631.178010%
C5348440.822737%
D5348140.261780%

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 5609 5351 0 0 0.00% 0.00%
B 5609 5351 12 12 0.21% 0.22%
C 5609 5351 1 1 0.02% 0.02%
D 5609 5351 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 15 239 14329 107.41 629 614 127.7
A 15 157 13965 104.55 629 614 127.7
A 14 239 13269 99.1 629 614 127.7
B 7 220 122718 1013.07 632 615 120.5
B 0 189 45142 369.44 632 615 120.5
B 12 111 13350 105.66 632 615 120.5
C 14 238 92911 646.87 609 612 142.7
C 3 233 56027 388.37 609 612 142.7
C 0 207 9611 63.07 609 612 142.7
D 2 152 74672 491.6 617 598 150.7
D 2 234 21318 137.51 617 598 150.7
D 2 16 8831 54.64 617 598 150.7

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