ASTROSAT CZTI

Data Quality Report

Orbit 45183

Creation date: 2024-06-27T23:10:18.719545
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_049T05_9000006050_45183cztM0_level2.fits modeM0/AS1A13_049T05_9000006050_45183cztM0_level2_quad_clean.evt
Size (bytes)443,128,32097,796,160
Size422.6 MB 93.3 MB
Events in quadrant A4,599,801660,694
Events in quadrant B3,215,878696,685
Events in quadrant C2,663,968675,681
Events in quadrant D5,478,798528,032

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179171
B0132541
C0117581
D0202211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5724801.397624%
B5725681.187773%
C5725130.227074%
D572592116.087336%

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 6929 5725 4 4 0.06% 0.07%
B 6930 5726 15 15 0.22% 0.26%
C 6930 5726 2 2 0.03% 0.03%
D 6930 5725 748 748 10.79% 13.07%

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 2033589 14887.25 660 646 136.6
A 0 243 12380 85.93 660 646 136.6
A 3 137 7191 47.93 660 646 136.6
B 5 185 224796 1726.59 665 644 129.8
B 3 112 173156 1328.82 665 644 129.8
B 4 170 75903 579.7 665 644 129.8
C 1 3 22641 140.17 668 674 156.7
C 14 254 13636 82.71 668 674 156.7
C 3 233 10454 62.41 668 674 156.7
D 13 249 1530823 10053.24 611 594 152.2
D 5 235 1002220 6580.45 611 594 152.2
D 1 47 222068 1455.03 611 594 152.2

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