ASTROSAT CZTI

Data Quality Report

Orbit 47097

Creation date: 2024-06-27T23:31:41.179559
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_003T01_9000006298_47097cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47097cztM0_level2_quad_clean.evt
Size (bytes)435,188,160101,116,800
Size415.0 MB 96.4 MB
Events in quadrant A5,984,650684,420
Events in quadrant B2,954,753706,165
Events in quadrant C2,642,676659,548
Events in quadrant D4,061,115592,484

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220683
B0128591
C0123354
D0165584

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60021552.582473%
B6004540.899400%
C6002130.216594%
D60013145.232461%

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 7208 6004 58 58 0.80% 0.97%
B 7209 6005 16 16 0.22% 0.27%
C 7209 6004 4 4 0.06% 0.07%
D 7208 6003 290 290 4.02% 4.83%

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 3225290 23264.89 669 656 138.6
A 14 248 82239 588.6 669 656 138.6
A 9 191 32869 232.4 669 656 138.6
B 5 32 178963 1370.8 669 649 130.1
B 5 255 49169 373.0 669 649 130.1
B 0 200 28142 211.35 669 649 130.1
C 14 254 57303 375.58 648 651 150.8
C 12 249 37352 243.31 648 651 150.8
C 15 208 11005 68.64 648 651 150.8
D 1 47 1110931 6980.9 638 616 159.1
D 8 48 232997 1461.05 638 616 159.1
D 2 249 183446 1149.51 638 616 159.1

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