ASTROSAT CZTI

Data Quality Report

Orbit 09138

Creation date: 2024-06-27T15:41:46.208757
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_046T01_9000001274_09138cztM0_level2.evt modeM0/AS1G07_046T01_9000001274_09138cztM0_level2_quad_clean.evt
Size (bytes)604,860,48087,114,240
Size576.8 MB 83.1 MB
Events in quadrant A5,545,330516,787
Events in quadrant B4,087,970525,847
Events in quadrant C4,020,072513,036
Events in quadrant D4,101,836505,511

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02216511
B0176168
C0177474
D0180972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83014054.878930%
B83013784.553668%
C83032823.396363%
D83043384.070328%

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 8564 8304 12 12 0.14% 0.14%
B 8564 8305 0 0 0.00% 0.00%
C 8564 8305 0 0 0.00% 0.00%
D 8564 8305 42 42 0.49% 0.51%

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 8 5 921425 4299.43 1042 1019 214.1
A 15 236 393700 1834.31 1042 1019 214.1
A 4 2 49945 228.54 1042 1019 214.1
B 12 111 23911 111.52 1041 1012 205.3
B 11 111 19416 89.63 1041 1012 205.3
B 4 80 14779 67.04 1041 1012 205.3
C 14 234 45203 184.34 1009 1012 239.7
C 8 128 15341 59.77 1009 1012 239.7
C 9 68 8032 29.28 1009 1012 239.7
D 1 52 121317 480.92 1016 989 250.2
D 7 71 53397 209.46 1016 989 250.2
D 2 14 45988 179.85 1016 989 250.2

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