ASTROSAT CZTI

Data Quality Report

Orbit 20220925_T05_054T01_9000005350_level2

Creation date: 2022-10-21T18:35:14.793164
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_054T01_9000005350cztM0_level2.fits modeM0/AS1T05_054T01_9000005350cztM0_level2_quad_clean.evt
Size (bytes)553,314,240602,282,880
Size527.7 MB 574.4 MB
Events in quadrant A3,404,4723,752,346
Events in quadrant B3,197,0103,627,852
Events in quadrant C3,298,1563,640,005
Events in quadrant D2,832,6723,196,641

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02210
B02210
C02210
D02210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012000
B012000
C012000
D012000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01267190
B01494960
C01256070
D01580150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A586562330.397231%
B5865618923.225586%
C586562810.479064%
D5865628414.843494%

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 80795 58648 0 0 0.00% 0.00%
B 80795 58621 0 0 0.00% 0.00%
C 80795 58648 0 0 0.00% 0.00%
D 80795 58577 0 0 0.00% 0.00%

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 0 29 2870 9.35 891 841 216.9
A 7 110 2736 8.74 891 841 216.9
A 9 19 2724 8.68 891 841 216.9
B 2 9 2680 11.45 847 815 162.9
B 3 80 2429 9.91 847 815 162.9
B 5 128 2236 8.72 847 815 162.9
C 1 81 2860 9.23 872 822 220.9
C 1 80 2726 8.62 872 822 220.9
C 3 202 2662 8.33 872 822 220.9
D 4 160 2197 6.7 811 742 217.1
D 6 62 2084 6.18 811 742 217.1
D 10 189 2076 6.15 811 742 217.1

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