ASTROSAT CZTI

Data Quality Report

Orbit 33149

Creation date: 2024-06-27T20:45:27.613770
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/AS1A11_096T01_9000004766_33149cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33149cztM0_level2_quad_clean.evt
Size (bytes)489,617,28062,251,200
Size466.9 MB 59.4 MB
Events in quadrant A2,654,589398,271
Events in quadrant B3,984,567389,826
Events in quadrant C2,806,626381,116
Events in quadrant D5,037,882359,318

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107833
B0152172
C0112742
D0185262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508250.098386%
B50823797.457694%
C5082811.593861%
D50823847.556080%

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 7205 5083 0 0 0.00% 0.00%
B 7205 5083 178 178 2.47% 3.50%
C 7205 5083 48 48 0.67% 0.94%
D 7205 5083 329 329 4.57% 6.47%

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 6 18128 130.92 677 666 133.4
A 13 254 9678 67.57 677 666 133.4
A 0 31 7321 49.9 677 666 133.4
B 0 219 560149 4535.25 658 645 123.4
B 5 172 504010 4080.19 658 645 123.4
B 0 189 159162 1284.91 658 645 123.4
C 0 10 188021 1288.88 635 641 145.4
C 9 187 59376 404.01 635 641 145.4
C 7 221 36404 245.99 635 641 145.4
D 8 195 1247313 8348.36 620 609 149.3
D 12 233 278388 1860.1 620 609 149.3
D 2 249 210834 1407.74 620 609 149.3

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