ASTROSAT CZTI

Data Quality Report

Orbit 47063

Creation date: 2024-06-27T23:31:17.176935
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/AS1C09_005T01_9000006296_47063cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47063cztM0_level2_quad_clean.evt
Size (bytes)1,417,599,360293,785,920
Size1.3 GB 280.2 MB
Events in quadrant A17,906,6441,964,404
Events in quadrant B12,943,0841,986,513
Events in quadrant C8,420,1791,926,096
Events in quadrant D11,740,1301,709,904

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03900
B03900
C03900
D03900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0652773
B0513063
C03947012
D0490013

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189695382.836206%
B189698064.249038%
C189671700.896294%
D1897010795.687928%

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 20569 18973 24 24 0.12% 0.13%
B 20569 18973 384 384 1.87% 2.02%
C 20570 18972 85 85 0.41% 0.45%
D 20570 18974 770 770 3.74% 4.06%

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 9670673 22561.72 2065 2018 428.5
A 13 248 96285 219.97 2065 2018 428.5
A 9 191 77210 175.46 2065 2018 428.5
B 3 112 3837639 9662.81 2046 1980 397.0
B 5 255 393613 986.6 2046 1980 397.0
B 5 172 116533 288.58 2046 1980 397.0
C 5 250 264275 551.56 2037 2045 475.4
C 14 254 141942 294.25 2037 2045 475.4
C 3 233 39161 78.07 2037 2045 475.4
D 12 233 1030037 2071.14 1998 1940 496.4
D 2 249 732284 1471.31 1998 1940 496.4
D 11 224 668141 1342.09 1998 1940 496.4

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