ASTROSAT CZTI

Data Quality Report

Orbit 04140

Creation date: 2024-06-27T14:37:56.442284
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_213T01_9000000534_04140cztM0_level2.evt modeM0/AS1G05_213T01_9000000534_04140cztM0_level2_quad_clean.evt
Size (bytes)104,414,40025,335,360
Size99.6 MB 24.2 MB
Events in quadrant A681,846168,169
Events in quadrant B726,211170,069
Events in quadrant C636,899165,244
Events in quadrant D1,018,521158,250

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029051
B029981
C028591
D040081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A140440.284900%
B140420.142450%
C140420.142450%
D1404392.777778%

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 1403 1403 0 0 0.00% 0.00%
B 1403 1403 0 0 0.00% 0.00%
C 1403 1403 0 0 0.00% 0.00%
D 1404 1404 38 38 2.71% 2.71%

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 15 234 4360 113.42 173 170 36.9
A 13 14 3955 102.46 173 170 36.9
A 14 111 2132 53.11 173 170 36.9
B 10 16 18114 508.39 174 170 35.3
B 0 183 12748 356.36 174 170 35.3
B 4 81 6662 183.93 174 170 35.3
C 1 16 5319 134.22 160 161 38.4
C 10 65 2488 60.55 160 161 38.4
C 13 61 1354 31.04 160 161 38.4
D 1 52 267085 6507.44 161 156 41.0
D 2 232 98517 2397.93 161 156 41.0
D 13 137 15945 384.92 161 156 41.0

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