ASTROSAT CZTI

Data Quality Report

Orbit 48183

Creation date: 2024-08-26T09:36:13.958388
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_065T05_9000006412_48183cztM0_level2.fits modeM0/AS1A13_065T05_9000006412_48183cztM0_level2_quad_clean.evt
Size (bytes)423,417,60085,962,240
Size403.8 MB 82.0 MB
Events in quadrant A7,209,038724,613
Events in quadrant B1,128,02245,131
Events in quadrant C2,932,493714,912
Events in quadrant D3,878,713650,300

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267511
B070051
C0135451
D0159811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66602173.258258%
B66616661100.000000%
C6661390.585498%
D66611442.161838%

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 7685 6661 33 33 0.43% 0.50%
B 7685 6660 0 0 0.00% 0.00%
C 7686 6662 3 3 0.04% 0.05%
D 7686 6662 93 93 1.21% 1.40%

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 4238964 26929.39 758 742 157.4
A 13 248 31146 193.19 758 742 157.4
A 13 254 12741 76.24 758 742 157.4
B 2 177 921965 77705.5 48 47 11.9
B 0 186 5059 422.45 48 47 11.9
B 4 21 3025 251.01 48 47 11.9
C 14 254 20420 111.01 745 744 177.3
C 3 233 8807 45.49 745 744 177.3
C 13 61 4864 23.24 745 744 177.3
D 12 1 242873 1275.88 746 722 189.8
D 2 165 198827 1043.8 746 722 189.8
D 12 128 159517 836.68 746 722 189.8

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