ASTROSAT CZTI

Data Quality Report

Orbit 43082

Creation date: 2024-06-27T22:47:46.278238
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/AS1C07_001T10_9000005844_43082cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43082cztM0_level2_quad_clean.evt
Size (bytes)302,385,60090,547,200
Size288.4 MB 86.4 MB
Events in quadrant A3,038,357624,467
Events in quadrant B2,664,299635,168
Events in quadrant C2,387,373580,694
Events in quadrant D2,715,360552,453

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119741
B0110111
C0100501
D0113051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4977561.125176%
B4978150.301326%
C497820.040177%
D4978340.683005%

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 7010 4978 33 33 0.47% 0.66%
B 7011 4979 7 7 0.10% 0.14%
C 7011 4979 1 1 0.01% 0.02%
D 7011 4979 30 30 0.43% 0.60%

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 542697 4667.54 575 565 116.1
A 15 237 204825 1758.6 575 565 116.1
A 12 189 31382 265.32 575 565 116.1
B 0 229 177060 1642.3 567 553 107.5
B 0 186 93651 866.23 567 553 107.5
B 4 36 72879 672.95 567 553 107.5
C 15 214 225781 1774.98 547 550 126.9
C 12 2 12252 92.22 547 550 126.9
C 1 128 7577 55.38 547 550 126.9
D 1 52 201519 1486.58 559 543 135.2
D 13 249 90951 668.73 559 543 135.2
D 12 233 73120 536.84 559 543 135.2

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