ASTROSAT CZTI

Data Quality Report

Orbit 27924

Creation date: 2024-06-27T19:46:02.020103
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/AS1A10_049T01_9000004032_27924cztM0_level2.evt modeM0/AS1A10_049T01_9000004032_27924cztM0_level2_quad_clean.evt
Size (bytes)501,410,880119,545,920
Size478.2 MB 114.0 MB
Events in quadrant A3,131,347824,197
Events in quadrant B3,662,288825,175
Events in quadrant C3,119,834775,245
Events in quadrant D4,842,246754,305

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131810
B0149700
C0132170
D0192120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6333951.500079%
B63331732.731723%
C63341101.736659%
D63331442.273804%

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 7353 6333 1 1 0.01% 0.02%
B 7353 6333 30 30 0.41% 0.47%
C 7354 6334 0 0 0.00% 0.00%
D 7353 6333 72 72 0.98% 1.14%

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 13 254 11408 65.59 808 792 161.9
A 15 174 7890 43.85 808 792 161.9
A 3 137 7472 41.27 808 792 161.9
B 10 245 282278 1885.62 799 779 149.3
B 0 230 144630 963.59 799 779 149.3
B 15 32 106772 710.0 799 779 149.3
C 14 238 125361 712.13 758 764 175.0
C 3 233 35952 201.11 758 764 175.0
C 13 61 5376 26.36 758 764 175.0
D 8 195 1292713 7163.77 759 737 180.3
D 1 52 287177 1588.26 759 737 180.3
D 2 250 132860 732.6 759 737 180.3

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