ASTROSAT CZTI

Data Quality Report

Orbit 29334

Creation date: 2024-06-27T20:02:50.823088
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/AS1A10_050T03_9000004216_29334cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29334cztM0_level2_quad_clean.evt
Size (bytes)958,299,84095,967,360
Size913.9 MB 91.5 MB
Events in quadrant A3,703,813641,048
Events in quadrant B4,429,084641,256
Events in quadrant C4,727,002620,467
Events in quadrant D15,636,230460,483

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160351
B0181011
C0191511
D0517926

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7798350.448833%
B77991511.936146%
C77991141.461726%
D7798498863.965119%

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 8348 7799 1 1 0.01% 0.01%
B 8349 7799 90 90 1.08% 1.15%
C 8349 7800 3 3 0.04% 0.04%
D 8348 7798 4542 4542 54.41% 58.25%

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 1 113 31432 160.74 940 922 189.8
A 15 174 20087 100.97 940 922 189.8
A 13 254 18565 92.95 940 922 189.8
B 10 245 459991 2572.02 930 907 178.5
B 5 172 123095 684.56 930 907 178.5
B 0 190 60133 331.81 930 907 178.5
C 3 233 1013544 4716.19 903 908 214.7
C 14 238 144632 669.37 903 908 214.7
C 2 114 19078 84.62 903 908 214.7
D 12 33 10723620 72902.4 609 592 147.1
D 1 52 1618263 10998.02 609 592 147.1
D 13 104 476004 3232.17 609 592 147.1

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