ASTROSAT CZTI

Data Quality Report

Orbit 47535

Creation date: 2024-07-13T01:48:09.284842
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_002T01_9000006334_47535cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47535cztM0_level2_quad_clean.evt
Size (bytes)433,488,960103,596,480
Size413.4 MB 98.8 MB
Events in quadrant A6,573,757679,642
Events in quadrant B2,961,964713,449
Events in quadrant C2,677,288682,641
Events in quadrant D3,349,883626,642

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236981
B0131001
C0126631
D0143491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62262934.706071%
B6227500.802955%
C6227160.256946%
D6227831.332905%

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 7281 6227 84 84 1.15% 1.35%
B 7282 6229 4 4 0.05% 0.06%
C 7282 6229 4 4 0.05% 0.06%
D 7282 6229 59 59 0.81% 0.95%

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 3595399 25484.35 682 668 141.1
A 9 191 331382 2344.55 682 668 141.1
A 13 254 10320 68.43 682 668 141.1
B 0 200 116391 854.21 692 672 135.5
B 0 198 50935 371.03 692 672 135.5
B 0 190 36543 264.79 692 672 135.5
C 1 3 14327 86.41 675 678 158.0
C 14 254 11903 71.06 675 678 158.0
C 14 220 9141 53.58 675 678 158.0
D 2 165 419574 2495.92 672 649 167.8
D 2 249 90172 533.37 672 649 167.8
D 7 55 79312 468.67 672 649 167.8

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