ASTROSAT CZTI

Data Quality Report

Orbit 43025

Creation date: 2024-06-27T22:47:03.786578
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_43025cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43025cztM0_level2_quad_clean.evt
Size (bytes)486,653,760107,121,600
Size464.1 MB 102.2 MB
Events in quadrant A3,473,441810,629
Events in quadrant B6,460,933637,783
Events in quadrant C2,747,558785,056
Events in quadrant D4,928,070646,001

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137442
B0226682
C0111222
D0181902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52061302.497119%
B5206138026.507876%
C520520.038425%
D520563012.103746%

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 7328 5207 75 75 1.02% 1.44%
B 7328 5207 1099 1099 15.00% 21.11%
C 7327 5205 0 0 0.00% 0.00%
D 7327 5205 559 559 7.63% 10.74%

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 594632 4082.32 665 656 145.5
A 15 237 304552 2088.64 665 656 145.5
A 13 254 7235 45.22 665 656 145.5
B 0 186 3092707 25037.72 606 596 123.5
B 5 255 743791 6017.87 606 596 123.5
B 0 189 107784 867.93 606 596 123.5
C 15 214 227612 1429.7 641 650 158.7
C 12 249 8295 48.16 641 650 158.7
C 14 254 6472 36.67 641 650 158.7
D 1 52 1313626 8296.47 611 594 158.3
D 13 249 585797 3697.64 611 594 158.3
D 10 118 469510 2962.87 611 594 158.3

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