ASTROSAT CZTI

Data Quality Report

Orbit 44965

Creation date: 2024-06-27T23:08:27.113775
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_017T02_9000006032_44965cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44965cztM0_level2_quad_clean.evt
Size (bytes)467,591,040111,625,920
Size445.9 MB 106.5 MB
Events in quadrant A5,274,697741,419
Events in quadrant B3,571,539772,466
Events in quadrant C3,180,489754,760
Events in quadrant D4,783,758663,297

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203422
B0146252
C0137022
D0184922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64171672.602462%
B64171362.119370%
C6417330.514259%
D64172994.659498%

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 7562 6418 3 3 0.04% 0.05%
B 7562 6418 53 53 0.70% 0.83%
C 7562 6418 8 8 0.11% 0.12%
D 7562 6418 228 228 3.02% 3.55%

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 2293954 14387.45 763 748 159.4
A 7 3 12425 73.26 763 748 159.4
A 13 248 11685 68.62 763 748 159.4
B 4 171 119555 790.01 760 737 150.4
B 0 219 83150 547.96 760 737 150.4
B 5 255 81358 536.04 760 737 150.4
C 12 250 102767 572.67 756 761 178.1
C 1 3 71579 397.58 756 761 178.1
C 14 254 41548 228.98 756 761 178.1
D 1 52 387041 2069.45 743 722 186.7
D 13 249 318333 1701.39 743 722 186.7
D 13 187 280282 1497.56 743 722 186.7

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