ASTROSAT CZTI

Data Quality Report

Orbit 09903

Creation date: 2024-06-27T15:52:17.941074
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/AS1A03_053T01_9000001410_09903cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09903cztM0_level2_quad_clean.evt
Size (bytes)169,251,84018,089,280
Size161.4 MB 17.3 MB
Events in quadrant A1,268,15197,968
Events in quadrant B1,047,576101,496
Events in quadrant C1,025,041100,647
Events in quadrant D1,637,61592,289

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052532
B045621
C045701
D062321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21381085.051450%
B2138763.554724%
C2138442.057998%
D21381175.472404%

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 2803 2139 46 46 1.64% 2.15%
B 2803 2139 0 0 0.00% 0.00%
C 2803 2139 0 0 0.00% 0.00%
D 2803 2139 10 10 0.36% 0.47%

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 15 239 263898 4741.46 261 254 55.6
A 0 226 2331 37.35 261 254 55.6
A 12 194 1996 31.33 261 254 55.6
B 12 111 6523 113.96 267 260 55.0
B 11 111 5331 92.27 267 260 55.0
B 4 173 4777 82.19 267 260 55.0
C 13 61 1968 27.0 262 263 63.2
C 14 234 1268 15.91 262 263 63.2
C 14 67 1160 14.2 262 263 63.2
D 2 16 449253 6568.37 252 246 68.4
D 8 195 191183 2793.15 252 246 68.4
D 1 52 9832 140.23 252 246 68.4

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