ASTROSAT CZTI

Data Quality Report

Orbit 20240828_A13_029T01_9000006422_level2

Creation date: 2024-09-09T16:02:17.173665
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_029T01_9000006422cztM0_level2.fits modeM0/AS1A13_029T01_9000006422cztM0_level2_quad_clean.evt
Size (bytes)3,755,384,6403,538,039,680
Size3.5 GB 3.3 GB
Events in quadrant A21,841,97820,270,199
Events in quadrant B21,645,68220,968,953
Events in quadrant C22,514,94519,770,734
Events in quadrant D18,794,05217,231,123

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016087380
B09538770
C08863410
D011466770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085890
B085830
C085850
D085780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05170
B05200
C05180
D05180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A421713186734.427893%
B422390101922.412936%
C42233942951.016956%
D422095284336.736161%

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 643963 422500 0 0 0.00% 0.00%
B 643963 423204 0 0 0.00% 0.00%
C 643963 423206 0 0 0.00% 0.00%
D 643963 422307 0 0 0.00% 0.00%

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 7 110 17882 8.75 5695 5294 1439.4
A 15 236 17596 8.55 5695 5294 1439.4
A 14 95 16659 7.9 5695 5294 1439.4
B 2 9 20669 13.42 5724 5420 1136.1
B 2 8 16449 9.71 5724 5420 1136.1
B 3 17 15966 9.28 5724 5420 1136.1
C 1 81 16734 7.31 5955 5515 1535.0
C 3 202 16670 7.27 5955 5515 1535.0
C 3 203 16098 6.89 5955 5515 1535.0
D 4 16 13496 5.73 5410 4882 1504.3
D 10 189 13413 5.67 5410 4882 1504.3
D 15 47 13336 5.62 5410 4882 1504.3

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