ASTROSAT CZTI

Data Quality Report

Orbit 47745

Creation date: 2024-07-27T07:18:46.702174
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/AS1T05_213T01_9000006344_47745cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47745cztM0_level2_quad_clean.evt
Size (bytes)704,520,000151,110,720
Size671.9 MB 144.1 MB
Events in quadrant A9,773,279984,476
Events in quadrant B5,292,350989,737
Events in quadrant C4,591,4011,002,110
Events in quadrant D5,659,271916,300

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01980
B01980
C01980
D01980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0355241
B0227241
C0212311
D0240191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A98455165.241239%
B98465135.210238%
C98461661.685964%
D98462682.721918%

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 10215 9846 0 0 0.00% 0.00%
B 10216 9846 108 108 1.06% 1.10%
C 10216 9847 59 59 0.58% 0.60%
D 10216 9847 170 170 1.66% 1.73%

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 5507170 24812.46 1071 1047 221.9
A 9 191 54358 240.24 1071 1047 221.9
A 13 248 40628 178.37 1071 1047 221.9
B 4 171 344637 1642.68 1065 1031 209.2
B 0 200 338063 1611.25 1065 1031 209.2
B 5 255 132258 627.36 1065 1031 209.2
C 12 2 403482 1613.79 1063 1066 249.4
C 14 254 21009 79.98 1063 1066 249.4
C 0 207 16530 62.01 1063 1066 249.4
D 10 181 576448 2178.02 1059 1025 264.2
D 12 2 391038 1476.23 1059 1025 264.2
D 2 249 171036 643.5 1059 1025 264.2

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