ASTROSAT CZTI

Data Quality Report

Orbit 47317

Creation date: 2024-06-28T09:44:44.124750
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/AS1A13_093T23_9000006316_47317cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47317cztM0_level2_quad_clean.evt
Size (bytes)569,635,200107,634,240
Size543.2 MB 102.6 MB
Events in quadrant A8,278,931708,441
Events in quadrant B3,227,316768,622
Events in quadrant C4,537,557680,152
Events in quadrant D4,527,594638,923

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294401
B0138991
C0181301
D0181201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66425748.641975%
B66431031.550504%
C66435037.571880%
D66423425.149051%

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 7757 6643 282 282 3.64% 4.25%
B 7758 6644 26 26 0.34% 0.39%
C 7758 6644 427 427 5.50% 6.43%
D 7757 6643 317 317 4.09% 4.77%

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 3521540 22291.35 757 741 157.9
A 9 191 1023030 6472.45 757 741 157.9
A 15 235 779491 4930.53 757 741 157.9
B 5 171 85136 551.27 772 748 153.1
B 0 198 20656 130.05 772 748 153.1
B 12 111 19283 121.08 772 748 153.1
C 12 2 1430564 8224.78 733 735 173.8
C 14 254 221112 1267.67 733 735 173.8
C 3 233 14396 78.58 733 735 173.8
D 6 112 1510296 8095.48 744 723 186.5
D 7 38 48935 258.55 744 723 186.5
D 11 192 36638 192.6 744 723 186.5

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