ASTROSAT CZTI

Data Quality Report

Orbit 13185

Creation date: 2024-06-27T16:37:30.344773
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/AS1T02_012T07_9000001958_13185cztM0_level2.evt modeM0/AS1T02_012T07_9000001958_13185cztM0_level2_quad_clean.evt
Size (bytes)422,968,32057,193,920
Size403.4 MB 54.5 MB
Events in quadrant A2,730,269344,656
Events in quadrant B3,841,211328,620
Events in quadrant C2,733,884343,020
Events in quadrant D3,124,996324,968

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116082
B0149491
C0116871
D0129431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5581170.304605%
B55815119.156065%
C5581440.788389%
D5581651.164666%

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 6922 5583 0 0 0.00% 0.00%
B 6922 5583 318 318 4.59% 5.70%
C 6922 5583 22 22 0.32% 0.39%
D 6922 5583 31 31 0.45% 0.56%

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 12 189 40163 283.48 686 672 139.3
A 1 162 15172 104.09 686 672 139.3
A 9 143 11519 77.86 686 672 139.3
B 4 239 1157893 9352.71 653 637 123.7
B 3 64 54456 434.95 653 637 123.7
B 0 214 33246 263.54 653 637 123.7
C 15 208 101410 651.01 675 679 154.7
C 13 61 5022 28.07 675 679 154.7
C 3 202 1564 5.72 675 679 154.7
D 13 122 332140 2092.12 663 645 158.4
D 1 52 115612 725.58 663 645 158.4
D 10 157 62887 392.82 663 645 158.4

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