ASTROSAT CZTI

Data Quality Report

Orbit 33148

Creation date: 2024-06-27T20:45:26.861509
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_33148cztM0_level2.evt modeM0/AS1A11_096T01_9000004766_33148cztM0_level2_quad_clean.evt
Size (bytes)511,318,08055,483,200
Size487.6 MB 52.9 MB
Events in quadrant A2,804,208339,683
Events in quadrant B4,016,426340,308
Events in quadrant C2,963,078326,700
Events in quadrant D5,349,769308,846

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114113
B0153422
C0117752
D0195832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A519770.134693%
B51973837.369636%
C5197881.693285%
D51974077.831441%

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 7289 5198 1 1 0.01% 0.02%
B 7289 5198 203 203 2.79% 3.91%
C 7289 5198 61 61 0.84% 1.17%
D 7289 5198 330 330 4.53% 6.35%

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 0 47 13891 93.82 715 706 140.5
A 0 31 13125 88.37 715 706 140.5
A 13 254 9743 64.31 715 706 140.5
B 5 172 662833 5214.69 687 675 127.0
B 0 219 360096 2830.54 687 675 127.0
B 0 199 85835 670.66 687 675 127.0
C 0 10 232003 1516.54 669 675 152.5
C 1 241 44836 289.51 669 675 152.5
C 9 187 23421 149.12 669 675 152.5
D 8 195 1090651 6828.49 661 650 159.6
D 12 233 426782 2669.57 661 650 159.6
D 1 47 404682 2531.12 661 650 159.6

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