ASTROSAT CZTI

Data Quality Report

Orbit 43389

Creation date: 2024-06-27T22:51:24.530629
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_018T01_9000005874_43389cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43389cztM0_level2_quad_clean.evt
Size (bytes)251,608,32067,674,240
Size240.0 MB 64.5 MB
Events in quadrant A2,827,469441,031
Events in quadrant B2,016,366466,219
Events in quadrant C2,005,666445,608
Events in quadrant D2,139,376403,375

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109631
B091311
C088351
D095591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41541914.597978%
B4154661.588830%
C415420.048146%
D4154902.166586%

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 6248 4155 176 176 2.82% 4.24%
B 6248 4155 40 40 0.64% 0.96%
C 6248 4155 2 2 0.03% 0.05%
D 6248 4155 71 71 1.14% 1.71%

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 15 237 715569 7924.73 434 425 90.2
A 10 83 399144 4418.33 434 425 90.2
A 13 248 18065 195.47 434 425 90.2
B 0 186 220822 2614.74 436 424 84.3
B 15 85 21850 254.19 436 424 84.3
B 4 67 19483 226.11 436 424 84.3
C 15 214 170521 1708.25 425 428 99.6
C 3 233 129015 1291.4 425 428 99.6
C 15 111 35978 357.03 425 428 99.6
D 13 249 264538 2556.17 421 408 103.3
D 12 6 209747 2025.92 421 408 103.3
D 2 234 22493 213.73 421 408 103.3

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