ASTROSAT CZTI

Data Quality Report

Orbit 07242

Creation date: 2024-06-27T15:17:15.993753
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/AS1G05_246T03_9000000990_07242cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07242cztM0_level2_quad_clean.evt
Size (bytes)518,045,76096,105,600
Size494.0 MB 91.7 MB
Events in quadrant A3,911,240591,804
Events in quadrant B3,720,167608,486
Events in quadrant C3,542,540599,435
Events in quadrant D3,990,044573,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170152
B0162501
C0159171
D0173531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77203164.093264%
B77201602.072539%
C77201221.580311%
D77201952.525907%

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 7835 7722 88 88 1.12% 1.14%
B 7835 7722 7 7 0.09% 0.09%
C 7835 7721 0 0 0.00% 0.00%
D 7835 7721 52 52 0.66% 0.67%

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 0 23 233334 1275.42 884 861 182.3
A 14 111 219843 1201.41 884 861 182.3
A 0 226 24802 131.35 884 861 182.3
B 0 214 107363 618.38 896 875 172.2
B 4 81 53873 307.76 896 875 172.2
B 0 228 24076 134.73 896 875 172.2
C 9 68 130521 645.47 862 862 200.9
C 10 22 22636 108.4 862 862 200.9
C 8 128 13338 62.11 862 862 200.9
D 2 216 156902 733.51 860 831 212.8
D 2 14 144029 673.01 860 831 212.8
D 2 206 95025 442.7 860 831 212.8

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