ASTROSAT CZTI

Data Quality Report

Orbit 14357

Creation date: 2024-06-27T16:54:06.870619
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/AS1G08_028T01_9000002112_14357cztM0_level2.evt modeM0/AS1G08_028T01_9000002112_14357cztM0_level2_quad_clean.evt
Size (bytes)676,440,000110,226,240
Size645.1 MB 105.1 MB
Events in quadrant A4,100,529701,664
Events in quadrant B5,618,368684,577
Events in quadrant C4,690,542690,485
Events in quadrant D5,497,336667,256

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175482
B0222472
C0190182
D0221962

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8553370.432597%
B85534575.343154%
C8553360.420905%
D85531902.221443%

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 10049 8556 3 3 0.03% 0.04%
B 10049 8554 273 273 2.72% 3.19%
C 10049 8556 0 0 0.00% 0.00%
D 10049 8555 135 135 1.34% 1.58%

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 12 189 63356 292.85 1041 1018 212.9
A 4 2 16677 73.56 1041 1018 212.9
A 8 15 9700 40.79 1041 1018 212.9
B 10 16 1001586 5113.87 1014 987 195.7
B 0 85 285921 1456.24 1014 987 195.7
B 0 189 153278 778.33 1014 987 195.7
C 3 233 754330 3231.67 1006 1012 233.1
C 13 61 7139 26.28 1006 1012 233.1
C 3 232 4749 16.03 1006 1012 233.1
D 5 222 850653 3566.34 998 971 238.3
D 2 120 209538 875.41 998 971 238.3
D 1 52 149691 624.22 998 971 238.3

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