ASTROSAT CZTI

Data Quality Report

Orbit 38589

Creation date: 2024-06-27T21:53:47.128192
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/AS1A12_018T01_9000005386_38589cztM0_level2.fits modeM0/AS1A12_018T01_9000005386_38589cztM0_level2_quad_clean.evt
Size (bytes)142,827,84025,035,840
Size136.2 MB 23.9 MB
Events in quadrant A795,480169,999
Events in quadrant B997,783170,836
Events in quadrant C2,052,448153,115
Events in quadrant D1,320,605151,623

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033701
B040141
C071571
D050231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152460.393701%
B1524452.952756%
C152422714.895013%
D1524895.839895%

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 1524 1524 2 2 0.13% 0.13%
B 1524 1524 27 27 1.77% 1.77%
C 1524 1524 226 226 14.83% 14.83%
D 1524 1524 98 98 6.43% 6.43%

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 145576 4035.79 167 163 36.0
A 13 254 2360 60.98 167 163 36.0
A 10 67 1887 47.85 167 163 36.0
B 5 184 317068 9418.25 166 161 33.6
B 5 172 16610 488.85 166 161 33.6
B 12 111 4242 121.28 166 161 33.6
C 14 254 1341163 34051.25 160 161 39.4
C 15 214 63007 1595.81 160 161 39.4
C 0 10 16846 423.67 160 161 39.4
D 1 47 566513 13994.17 159 154 40.5
D 13 138 58916 1451.95 159 154 40.5
D 13 249 23782 583.82 159 154 40.5

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