ASTROSAT CZTI

Data Quality Report

Orbit 05360

Creation date: 2024-06-27T14:54:19.269899
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/AS1G05_106T01_9000000678_05360cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05360cztM0_level2_quad_clean.evt
Size (bytes)591,949,44075,386,880
Size564.5 MB 71.9 MB
Events in quadrant A4,301,578427,946
Events in quadrant B4,708,932427,620
Events in quadrant C4,045,126428,346
Events in quadrant D4,295,953410,068

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187292
B0196161
C0180161
D0186307

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84866097.176526%
B84865296.233797%
C84863784.454395%
D84834224.974655%

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 8551 8486 53 53 0.62% 0.62%
B 8551 8486 25 25 0.29% 0.29%
C 8551 8486 0 0 0.00% 0.00%
D 8551 8486 23 23 0.27% 0.27%

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 15 174 234986 1093.54 1029 1001 214.0
A 0 50 108355 501.73 1029 1001 214.0
A 12 194 10173 42.87 1029 1001 214.0
B 14 167 334621 1645.7 1046 1016 202.7
B 4 80 110697 541.07 1046 1016 202.7
B 4 81 68088 330.87 1046 1016 202.7
C 1 16 29181 117.61 1018 1022 239.4
C 8 128 19031 75.22 1018 1022 239.4
C 8 112 9808 36.7 1018 1022 239.4
D 8 195 212407 836.37 1015 979 252.8
D 2 14 111190 435.98 1015 979 252.8
D 4 95 102977 403.49 1015 979 252.8

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