ASTROSAT CZTI

Data Quality Report

Orbit 07209

Creation date: 2024-06-27T15:16:57.963359
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/AS1G06_083T01_9000000984_07209cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07209cztM0_level2_quad_clean.evt
Size (bytes)461,580,48095,898,240
Size440.2 MB 91.5 MB
Events in quadrant A2,814,363622,643
Events in quadrant B3,859,905636,962
Events in quadrant C2,949,065626,057
Events in quadrant D3,936,009587,449

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126362
B0155491
C0129501
D0156841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6175250.404858%
B61754607.449393%
C6175310.502024%
D61751151.862348%

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 7425 6176 5 5 0.07% 0.08%
B 7425 6176 190 190 2.56% 3.08%
C 7425 6176 24 24 0.32% 0.39%
D 7425 6176 85 85 1.14% 1.38%

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 14 111 13125 86.18 721 706 144.1
A 3 1 8819 56.3 721 706 144.1
A 13 248 7449 46.79 721 706 144.1
B 0 228 820999 6206.15 711 692 132.2
B 0 214 85450 641.25 711 692 132.2
B 10 16 67988 509.14 711 692 132.2
C 9 243 126669 765.2 720 724 164.6
C 13 61 5368 28.22 720 724 164.6
C 1 16 5106 26.62 720 724 164.6
D 2 216 522573 3021.39 707 685 172.7
D 8 195 451377 2609.21 707 685 172.7
D 14 34 90732 521.31 707 685 172.7

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