ASTROSAT CZTI

Data Quality Report

Orbit 47252

Creation date: 2024-06-27T23:33:26.268984
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_005T01_9000006304_47252cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47252cztM0_level2_quad_clean.evt
Size (bytes)599,693,760105,459,840
Size571.9 MB 100.6 MB
Events in quadrant A8,445,978670,067
Events in quadrant B3,559,433738,267
Events in quadrant C3,257,352709,947
Events in quadrant D6,405,723597,328

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0298632
B0152352
C0147832
D0238502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A684579711.643535%
B6845991.446311%
C68461031.504528%
D684691413.350862%

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 7675 6846 433 433 5.64% 6.32%
B 7675 6846 37 37 0.48% 0.54%
C 7676 6847 103 103 1.34% 1.50%
D 7676 6847 742 742 9.67% 10.84%

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 3908348 25501.12 733 717 153.2
A 9 191 1655400 10798.43 733 717 153.2
A 13 248 19138 120.22 733 717 153.2
B 0 200 358417 2396.07 751 726 149.3
B 0 197 44219 291.35 751 726 149.3
B 5 32 42015 276.58 751 726 149.3
C 14 254 376166 2166.11 733 733 173.3
C 8 111 16579 91.42 733 733 173.3
C 13 61 4920 24.15 733 733 173.3
D 12 1 2727248 15659.48 691 668 174.1
D 12 218 391702 2245.81 691 668 174.1
D 12 233 156181 893.15 691 668 174.1

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