ASTROSAT CZTI

Data Quality Report

Orbit 43952

Creation date: 2024-06-27T22:57:35.383105
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_025T01_9000005920_43952cztM0_level2.fits modeM0/AS1A13_025T01_9000005920_43952cztM0_level2_quad_clean.evt
Size (bytes)460,739,520108,887,040
Size439.4 MB 103.8 MB
Events in quadrant A5,643,425725,507
Events in quadrant B3,705,797761,321
Events in quadrant C3,078,036732,613
Events in quadrant D4,141,437640,196

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212652
B0151583
C0134532
D0166242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62681913.047224%
B62671241.978618%
C6267320.510611%
D62672584.116802%

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 7503 6269 84 84 1.12% 1.34%
B 7502 6268 60 60 0.80% 0.96%
C 7502 6268 19 19 0.25% 0.30%
D 7502 6268 183 183 2.44% 2.92%

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 15 222 1193418 8032.81 720 706 148.5
A 10 83 1156990 7787.47 720 706 148.5
A 14 254 384614 2585.59 720 706 148.5
B 5 235 263772 1851.87 729 709 142.1
B 5 172 243614 1709.96 729 709 142.1
B 0 200 153811 1077.78 729 709 142.1
C 14 254 99015 585.97 715 721 167.7
C 1 241 83662 494.45 715 721 167.7
C 15 208 33892 197.75 715 721 167.7
D 5 235 332548 1875.49 697 674 177.0
D 1 52 216002 1216.86 697 674 177.0
D 13 249 168308 947.33 697 674 177.0

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