ASTROSAT CZTI

Data Quality Report

Orbit 08292

Creation date: 2024-06-27T15:30:40.506404
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/AS1T01_163T01_9000001152_08292cztM0_level2.evt modeM0/AS1T01_163T01_9000001152_08292cztM0_level2_quad_clean.evt
Size (bytes)457,309,44076,965,120
Size436.1 MB 73.4 MB
Events in quadrant A3,312,171478,561
Events in quadrant B3,393,560485,713
Events in quadrant C3,180,118469,007
Events in quadrant D3,531,310453,101

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137623
B0139282
C0134922
D0146122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63621181.854763%
B63621221.917636%
C6362721.131720%
D63621362.137693%

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 7597 6362 6 6 0.08% 0.09%
B 7597 6362 5 5 0.07% 0.08%
C 7597 6362 7 7 0.09% 0.11%
D 7597 6362 55 55 0.72% 0.86%

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 15 234 30810 176.64 847 831 169.7
A 13 248 17771 99.81 847 831 169.7
A 0 226 8180 43.3 847 831 169.7
B 0 214 44957 275.36 847 830 160.2
B 10 16 37628 229.63 847 830 160.2
B 12 111 16451 97.48 847 830 160.2
C 9 54 38025 199.9 806 811 186.2
C 13 61 6255 29.24 806 811 186.2
C 3 202 2081 6.82 806 811 186.2
D 12 233 119452 591.36 806 787 200.7
D 1 52 72508 357.42 806 787 200.7
D 2 14 69182 340.84 806 787 200.7

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