ASTROSAT CZTI

Data Quality Report

Orbit 09528

Creation date: 2024-06-27T15:47:19.544613
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/AS1G07_049T01_9000001352_09528cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09528cztM0_level2_quad_clean.evt
Size (bytes)532,503,360143,236,800
Size507.8 MB 136.6 MB
Events in quadrant A3,761,024963,108
Events in quadrant B3,859,310963,366
Events in quadrant C3,937,071941,214
Events in quadrant D4,037,666926,304

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01664023
B01699025
C01756319
D01738932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78331071.366016%
B78311401.787767%
C78341862.374266%
D7829600.766381%

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 8443 7845 1 1 0.01% 0.01%
B 8443 7845 18 18 0.21% 0.23%
C 8443 7845 86 86 1.02% 1.10%
D 8443 7845 21 21 0.25% 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 1 162 109127 582.87 911 890 185.7
A 1 178 40199 211.69 911 890 185.7
A 1 161 38893 204.65 911 890 185.7
B 0 214 186390 1066.82 913 890 173.9
B 0 219 65412 371.07 913 890 173.9
B 4 80 28301 157.64 913 890 173.9
C 4 254 512820 2548.71 870 873 200.9
C 14 234 21637 103.37 870 873 200.9
C 13 61 6568 28.35 870 873 200.9
D 8 195 262794 1128.48 868 846 232.1
D 13 137 130503 558.56 868 846 232.1
D 12 233 123363 527.81 868 846 232.1

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