ASTROSAT CZTI

Data Quality Report

Orbit 10431

Creation date: 2024-06-27T15:59:50.515899
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/AS1G07_066T01_9000001510_10431cztM0_level2.evt modeM0/AS1G07_066T01_9000001510_10431cztM0_level2_quad_clean.evt
Size (bytes)602,199,36087,727,680
Size574.3 MB 83.7 MB
Events in quadrant A5,754,355550,554
Events in quadrant B4,347,584543,956
Events in quadrant C3,100,949584,715
Events in quadrant D4,589,863519,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015616
B015619
C015619
D015616

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235222237
B0211583935
C0157652008
D0213083220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66226089.181516%
B64404216.537267%
C6700410.611940%
D64661452.242499%

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 8777 6796 421 421 4.80% 6.19%
B 8778 6586 233 233 2.65% 3.54%
C 8778 6832 9 9 0.10% 0.13%
D 8778 6633 94 94 1.07% 1.42%

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 13 251 2605181 16585.69 767 750 157.0
A 3 80 168789 1070.12 767 750 157.0
A 13 253 12604 75.49 767 750 157.0
B 4 239 1245900 8736.69 750 732 142.5
B 0 214 69392 481.75 750 732 142.5
B 0 85 50244 347.4 750 732 142.5
C 14 234 62337 341.76 778 783 180.1
C 13 61 5836 28.06 778 783 180.1
C 14 67 2647 10.35 778 783 180.1
D 8 195 573232 3223.26 736 717 177.6
D 1 255 454099 2552.54 736 717 177.6
D 13 104 172957 969.71 736 717 177.6

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