ASTROSAT CZTI

Data Quality Report

Orbit 20170625_G07_063T01_9000001336_level2

Creation date: 2017-09-24T07:45:37.267846
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1G07_063T01_9000001336cztM0_level2.evt modeM0/AS1G07_063T01_9000001336cztM0_level2_quad_clean.evt
Size (bytes)1,577,361,600217,621,440
Size1.5 GB 207.5 MB
Events in quadrant A12,238,3671,330,597
Events in quadrant B8,819,4441,396,064
Events in quadrant C14,418,4891,252,373
Events in quadrant D11,003,7921,295,611

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0491960
B0396060
C0555880
D0466690

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03840
B03900
C03900
D04020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A190373071.612649%
B194751940.996149%
C18409231112.553642%
D193096013.112538%

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 22886 20581 53 53 0.23% 0.26%
B 22887 20782 1 1 0.00% 0.00%
C 22886 19925 1656 1656 7.24% 8.31%
D 22887 20756 379 379 1.66% 1.83%

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 8 5 3601259 7971.2 2196 2147 451.5
A 1 162 99427 215.45 2196 2147 451.5
A 1 178 29538 60.66 2196 2147 451.5
B 12 111 50897 112.06 2260 2200 434.5
B 11 111 41189 89.72 2260 2200 434.5
B 14 111 30890 66.02 2260 2200 434.5
C 4 254 6230029 13790.38 1955 1963 451.6
C 9 68 550010 1213.5 1955 1963 451.6
C 13 61 14663 28.12 1955 1963 451.6
D 1 52 2147104 3954.85 2139 2089 542.4
D 13 122 464767 853.06 2139 2089 542.4
D 2 234 75471 135.3 2139 2089 542.4

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