ASTROSAT CZTI

Data Quality Report

Orbit 43051

Creation date: 2024-06-27T22:47:21.812639
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_148T01_9000005838_43051cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43051cztM0_level2_quad_clean.evt
Size (bytes)460,535,040107,095,680
Size439.2 MB 102.1 MB
Events in quadrant A4,003,997788,357
Events in quadrant B4,829,650681,042
Events in quadrant C2,795,599766,045
Events in quadrant D5,002,741633,070

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155532
B0175122
C0111062
D0184472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5349781.458216%
B534987216.302113%
C5349100.186951%
D534954210.132735%

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 7142 5350 29 29 0.41% 0.54%
B 7142 5350 726 726 10.17% 13.57%
C 7142 5350 2 2 0.03% 0.04%
D 7142 5350 515 515 7.21% 9.63%

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 15 222 662840 4483.96 670 660 147.7
A 10 83 595488 4027.89 670 660 147.7
A 15 237 80886 543.25 670 660 147.7
B 0 186 1999806 15495.43 624 611 129.0
B 0 229 278963 2157.46 624 611 129.0
B 4 171 47526 363.63 624 611 129.0
C 15 214 239390 1470.18 648 654 162.4
C 12 249 22087 131.99 648 654 162.4
C 14 254 4457 23.42 648 654 162.4
D 1 52 1278059 7818.22 625 607 163.4
D 2 16 612987 3747.87 625 607 163.4
D 13 249 360932 2205.25 625 607 163.4

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