ASTROSAT CZTI

Data Quality Report

Orbit 43646

Creation date: 2024-06-27T22:54:02.119094
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/AS1A12_068T05_9000005894_43646cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43646cztM0_level2_quad_clean.evt
Size (bytes)860,592,96094,631,040
Size820.7 MB 90.2 MB
Events in quadrant A4,411,596730,484
Events in quadrant B3,994,699737,889
Events in quadrant C14,618,243418,275
Events in quadrant D8,352,804543,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172591
B0159071
C0476972
D0291121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61912133.440478%
B61922884.651163%
C6191501280.956227%
D6191182829.526732%

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 7310 6191 120 120 1.64% 1.94%
B 7311 6191 197 197 2.69% 3.18%
C 7310 6190 5067 5067 69.32% 81.86%
D 7310 6190 1690 1690 23.12% 27.30%

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 777352 5345.65 710 697 145.3
A 15 223 443220 3045.85 710 697 145.3
A 13 248 262205 1799.94 710 697 145.3
B 5 235 809719 6061.63 699 681 133.5
B 12 32 225596 1685.15 699 681 133.5
B 4 206 48319 356.92 699 681 133.5
C 15 142 8953882 92561.32 413 416 96.7
C 15 126 1307541 13513.11 413 416 96.7
C 3 233 940174 9715.26 413 416 96.7
D 12 6 2730092 16326.42 600 583 167.2
D 13 249 909024 5433.79 600 583 167.2
D 14 210 278977 1665.2 600 583 167.2

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