ASTROSAT CZTI

Data Quality Report

Orbit 47027

Creation date: 2024-06-27T23:30:54.698945
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/AS1C09_005T01_9000006296_47027cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47027cztM0_level2_quad_clean.evt
Size (bytes)643,769,28095,333,760
Size613.9 MB 90.9 MB
Events in quadrant A6,162,790681,412
Events in quadrant B9,592,874482,010
Events in quadrant C2,847,838688,824
Events in quadrant D4,737,139593,082

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229441
B0328391
C0132731
D0184681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63162604.116529%
B6316254540.294490%
C6316931.472451%
D63175809.181574%

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 7291 6317 2 2 0.03% 0.03%
B 7291 6317 1801 1801 24.70% 28.51%
C 7291 6317 32 32 0.44% 0.51%
D 7292 6318 401 401 5.50% 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 10 83 3337822 22898.2 700 685 145.7
A 9 191 70088 476.21 700 685 145.7
A 0 243 24300 162.03 700 685 145.7
B 3 112 6888145 58856.99 607 587 117.0
B 4 171 107726 915.55 607 587 117.0
B 5 172 78482 665.64 607 587 117.0
C 14 254 158112 984.89 687 690 159.8
C 12 250 5789 31.9 687 690 159.8
C 13 61 4435 23.43 687 690 159.8
D 13 249 1273486 7680.99 671 649 165.7
D 1 52 450821 2716.58 671 649 165.7
D 12 233 273691 1647.68 671 649 165.7

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