ASTROSAT CZTI

Data Quality Report

Orbit 44610

Creation date: 2024-06-27T23:04:31.121667
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_009T03_9000006006_44610cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44610cztM0_level2_quad_clean.evt
Size (bytes)510,900,480113,875,200
Size487.2 MB 108.6 MB
Events in quadrant A5,958,726767,680
Events in quadrant B3,414,839782,316
Events in quadrant C3,748,521735,266
Events in quadrant D5,239,811669,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228130
B0151640
C0161110
D0204350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70851452.046577%
B7086851.199548%
C70861632.300310%
D70863865.447361%

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 7084 7084 65 65 0.92% 0.92%
B 7085 7085 17 17 0.24% 0.24%
C 7085 7085 95 95 1.34% 1.34%
D 7085 7085 376 376 5.31% 5.31%

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 1766037 10386.87 810 793 169.9
A 15 223 885354 5204.84 810 793 169.9
A 13 248 159411 933.32 810 793 169.9
B 5 172 93916 573.66 804 778 162.4
B 12 0 47171 285.75 804 778 162.4
B 0 186 29521 177.04 804 778 162.4
C 3 233 292314 1573.84 780 785 185.2
C 1 3 197897 1064.12 780 785 185.2
C 12 2 111377 597.04 780 785 185.2
D 13 249 899071 4527.69 780 754 198.4
D 1 52 617474 3108.39 780 754 198.4
D 12 233 172153 863.88 780 754 198.4

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