ASTROSAT CZTI

Data Quality Report

Orbit 43049

Creation date: 2024-06-27T22:47:21.019121
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_43049cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43049cztM0_level2_quad_clean.evt
Size (bytes)464,935,680100,149,120
Size443.4 MB 95.5 MB
Events in quadrant A3,921,457741,046
Events in quadrant B5,162,896586,365
Events in quadrant C2,766,089726,220
Events in quadrant D4,932,708594,454

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154442
B0188202
C0111632
D0183482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54951112.020018%
B5495123622.493176%
C549450.091008%
D549457210.411358%

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 7138 5496 74 74 1.04% 1.35%
B 7138 5496 964 964 13.51% 17.54%
C 7137 5495 1 1 0.01% 0.02%
D 7137 5495 502 502 7.03% 9.14%

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 615734 4315.01 657 647 142.5
A 15 237 352265 2466.7 657 647 142.5
A 15 222 322993 2261.35 657 647 142.5
B 0 186 2836257 24350.07 577 565 116.5
B 4 171 20305 169.51 577 565 116.5
B 0 229 17737 147.46 577 565 116.5
C 15 214 244129 1535.71 640 647 158.5
C 14 254 12464 74.53 640 647 158.5
C 7 220 5856 32.85 640 647 158.5
D 13 249 1434173 9010.95 609 592 159.1
D 1 52 895251 5623.49 609 592 159.1
D 12 6 256179 1606.52 609 592 159.1

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