ASTROSAT CZTI

Data Quality Report

Orbit 43689

Creation date: 2024-06-27T22:54:33.562027
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/AS1A13_008T01_9000005898_43689cztM0_level2.fits modeM0/AS1A13_008T01_9000005898_43689cztM0_level2_quad_clean.evt
Size (bytes)930,467,520104,788,800
Size887.4 MB 99.9 MB
Events in quadrant A11,377,493727,130
Events in quadrant B3,623,324802,805
Events in quadrant C13,757,772499,316
Events in quadrant D5,179,375684,201

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0383642
B0148792
C0454246
D0196852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6537212432.491969%
B65381211.850719%
C6537457469.970935%
D65374777.296925%

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 7607 6538 1496 1496 19.67% 22.88%
B 7608 6539 17 17 0.22% 0.26%
C 7607 6537 3563 3563 46.84% 54.51%
D 7607 6537 283 283 3.72% 4.33%

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 15 222 5493400 35889.89 742 726 153.0
A 14 63 1692688 11055.51 742 726 153.0
A 10 83 821723 5364.51 742 726 153.0
B 4 171 149716 950.31 796 773 156.7
B 5 235 69996 441.67 796 773 156.7
B 4 206 65798 414.88 796 773 156.7
C 15 142 8521855 71492.67 512 517 119.2
C 15 157 2284012 19158.16 512 517 119.2
C 3 233 802634 6729.63 512 517 119.2
D 14 210 309309 1469.0 762 742 210.1
D 2 120 270227 1282.94 762 742 210.1
D 5 235 269760 1280.72 762 742 210.1

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