ASTROSAT CZTI

Data Quality Report

Orbit 43044

Creation date: 2024-06-27T22:47:17.605477
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/AS1T05_148T01_9000005838_43044cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43044cztM0_level2_quad_clean.evt
Size (bytes)402,742,080109,785,600
Size384.1 MB 104.7 MB
Events in quadrant A3,445,576775,472
Events in quadrant B2,888,441780,632
Events in quadrant C2,841,460749,086
Events in quadrant D5,283,675615,747

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141902
B0122122
C0119582
D0196836

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5773370.640915%
B5773280.485016%
C577330.051966%
D577266311.486486%

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 7146 5774 21 21 0.29% 0.36%
B 7146 5774 15 15 0.21% 0.26%
C 7146 5774 0 0 0.00% 0.00%
D 7144 5772 547 547 7.66% 9.48%

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 10 83 611356 4139.13 681 671 147.5
A 15 237 106021 714.05 681 671 147.5
A 12 189 82833 556.88 681 671 147.5
B 0 229 83778 600.45 677 663 138.4
B 5 255 43888 312.27 677 663 138.4
B 0 189 39083 277.56 677 663 138.4
C 15 214 254271 1551.54 660 666 163.5
C 0 207 5779 31.28 660 666 163.5
C 3 233 5307 28.39 660 666 163.5
D 1 52 2528785 15449.6 630 613 163.6
D 10 118 144181 877.34 630 613 163.6
D 13 249 76472 463.57 630 613 163.6

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