ASTROSAT CZTI

Data Quality Report

Orbit 07018

Creation date: 2024-06-27T15:14:30.383209
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/AS1G06_026T01_9000000962_07018cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07018cztM0_level2_quad_clean.evt
Size (bytes)431,501,76098,167,680
Size411.5 MB 93.6 MB
Events in quadrant A3,018,967634,598
Events in quadrant B3,159,041648,622
Events in quadrant C3,033,452640,582
Events in quadrant D3,424,588605,885

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130623
B0133432
C0131592
D0142242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6349500.787526%
B6349480.756025%
C6349560.882029%
D6349991.559301%

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 7554 6350 0 0 0.00% 0.00%
B 7554 6350 2 2 0.03% 0.03%
C 7554 6350 0 0 0.00% 0.00%
D 7554 6350 41 41 0.54% 0.65%

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 14 15805 95.52 779 761 157.5
A 0 226 7677 43.91 779 761 157.5
A 12 194 7131 40.44 779 761 157.5
B 0 214 84710 575.91 787 769 145.8
B 12 111 14123 91.62 787 769 145.8
B 11 111 11053 70.56 787 769 145.8
C 12 4 7255 36.42 775 778 177.9
C 13 61 6096 29.9 775 778 177.9
C 3 202 2098 7.42 775 778 177.9
D 8 195 147126 781.77 767 743 187.2
D 12 233 123490 655.54 767 743 187.2
D 9 68 106894 566.9 767 743 187.2

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