ASTROSAT CZTI

Data Quality Report

Orbit 46904

Creation date: 2024-06-27T23:29:05.519733
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_068T05_9000006280_46904cztM0_level2.fits modeM0/AS1A13_068T05_9000006280_46904cztM0_level2_quad_clean.evt
Size (bytes)638,752,320109,157,760
Size609.2 MB 104.1 MB
Events in quadrant A6,649,887728,826
Events in quadrant B7,437,366721,323
Events in quadrant C3,171,507738,017
Events in quadrant D5,836,796621,984

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239482
B0271412
C0145692
D0223059

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70962683.776776%
B709680511.344419%
C7096550.775085%
D709476110.727375%

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 7841 7096 20 20 0.26% 0.28%
B 7841 7096 442 442 5.64% 6.23%
C 7841 7096 4 4 0.05% 0.06%
D 7840 7095 610 610 7.78% 8.60%

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 3501312 21243.03 790 771 164.8
A 13 248 87338 525.33 790 771 164.8
A 7 3 10491 58.99 790 771 164.8
B 3 112 4118111 26740.72 773 747 154.0
B 5 255 174351 1127.49 773 747 154.0
B 0 245 28362 179.35 773 747 154.0
C 14 254 58022 309.91 784 788 184.7
C 15 208 45467 241.93 784 788 184.7
C 3 233 7285 35.18 784 788 184.7
D 13 249 2167995 11392.89 752 730 190.2
D 1 52 209467 1097.29 752 730 190.2
D 2 249 202334 1059.79 752 730 190.2

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