ASTROSAT CZTI

Data Quality Report

Orbit 16379

Creation date: 2024-06-27T17:21:51.120522
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/AS1A05_069T05_9000002420_16379cztM0_level2.evt modeM0/AS1A05_069T05_9000002420_16379cztM0_level2_quad_clean.evt
Size (bytes)19,105,9205,368,320
Size18.2 MB 5.1 MB
Events in quadrant A129,44034,123
Events in quadrant B137,32235,034
Events in quadrant C140,13233,132
Events in quadrant D149,13632,087

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05751
B05910
C05760
D06480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28310.353357%
B28300.000000%
C28300.000000%
D28393.180212%

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 284 284 0 0 0.00% 0.00%
B 284 284 0 0 0.00% 0.00%
C 284 284 0 0 0.00% 0.00%
D 284 284 6 6 2.11% 2.11%

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 15 223 4364 517.93 31 30 8.4
A 15 174 4112 487.82 31 30 8.4
A 15 239 1319 154.04 31 30 8.4
B 0 197 7218 885.97 31 30 8.1
B 0 189 3851 470.96 31 30 8.1
B 0 182 1419 171.2 31 30 8.1
C 3 233 15440 1683.6 30 30 9.2
C 14 238 4728 513.27 30 30 9.2
C 13 61 232 22.07 30 30 9.2
D 10 70 24503 2630.98 30 28 9.3
D 12 218 7531 806.55 30 28 9.3
D 1 52 2665 283.47 30 28 9.3

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