ASTROSAT CZTI

Data Quality Report

Orbit 53017

Creation date: 2025-07-17T10:24:43.862833
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_011T07_9000006488_53017cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53017cztM0_level2_quad_clean.evt
Size (bytes)928,229,76070,208,640
Size885.2 MB 67.0 MB
Events in quadrant A13,513,926152,594
Events in quadrant B8,186,290462,106
Events in quadrant C7,165,362521,900
Events in quadrant D5,004,251546,387

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0443757
B0286921
C0256891
D0193991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6343489777.203216%
B6344198231.242119%
C634492114.517654%
D63442133.357503%

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 7327 6342 4569 4569 62.36% 72.04%
B 7329 6345 1722 1722 23.50% 27.14%
C 7329 6345 873 873 11.91% 13.76%
D 7329 6345 177 177 2.42% 2.79%

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 9 191 11201825 127346.62 340 331 88.0
A 3 14 327685 3721.6 340 331 88.0
A 7 206 212213 2408.83 340 331 88.0
B 10 44 3766118 32336.83 545 525 116.4
B 10 128 1279089 10979.6 545 525 116.4
B 9 252 455960 3911.02 545 525 116.4
C 15 224 2449343 14809.94 596 591 165.3
C 7 80 1082384 6542.64 596 591 165.3
C 1 16 680869 4114.29 596 591 165.3
D 2 62 1525530 8466.37 622 593 180.1
D 15 78 259573 1437.84 622 593 180.1
D 8 176 148724 822.42 622 593 180.1

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