ASTROSAT CZTI

Data Quality Report

Orbit 47832

Creation date: 2024-08-02T04:41:17.781922
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_216T01_9000006356_47832cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47832cztM0_level2_quad_clean.evt
Size (bytes)770,474,880144,990,720
Size734.8 MB 138.3 MB
Events in quadrant A11,489,318927,151
Events in quadrant B6,154,775938,752
Events in quadrant C4,184,103978,064
Events in quadrant D5,964,090892,966

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0407652
B0251342
C0195042
D0244272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94158218.720127%
B94156957.381837%
C9415410.435475%
D94152182.315454%

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 10860 9415 734 734 6.76% 7.80%
B 10860 9415 524 524 4.83% 5.57%
C 10860 9417 17 17 0.16% 0.18%
D 10860 9416 190 190 1.75% 2.02%

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 5335126 25227.9 1013 991 211.4
A 0 31 2126603 10053.13 1013 991 211.4
A 13 248 91336 427.29 1013 991 211.4
B 0 186 1552963 7893.89 997 968 196.6
B 5 32 395687 2007.65 997 968 196.6
B 0 200 97687 491.94 997 968 196.6
C 12 2 186502 774.2 1011 1018 239.6
C 14 254 22395 89.23 1011 1018 239.6
C 1 3 13051 50.23 1011 1018 239.6
D 12 33 594998 2353.91 1005 974 252.4
D 12 2 448819 1774.65 1005 974 252.4
D 7 96 448203 1772.21 1005 974 252.4

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