ASTROSAT CZTI

Data Quality Report

Orbit 48096

Creation date: 2024-08-21T10:04:57.258576
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_071T07_9000006398_48096cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48096cztM0_level2_quad_clean.evt
Size (bytes)403,407,36081,547,200
Size384.7 MB 77.8 MB
Events in quadrant A6,768,305680,495
Events in quadrant B1,101,57443,172
Events in quadrant C2,762,557678,889
Events in quadrant D3,801,113621,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246171
B068021
C0130581
D0157391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63292704.266077%
B6329632899.984200%
C6330480.758294%
D63301362.148499%

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 7319 6329 26 26 0.36% 0.41%
B 7318 6328 0 0 0.00% 0.00%
C 7320 6330 13 13 0.18% 0.21%
D 7320 6330 91 91 1.24% 1.44%

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 10 83 4018378 28395.43 684 669 141.5
A 13 248 74476 521.64 684 669 141.5
A 13 254 12465 83.37 684 669 141.5
B 2 177 873741 80228.34 44 43 10.9
B 4 21 23536 2157.27 44 43 10.9
B 12 18 8449 771.89 44 43 10.9
C 14 254 67125 422.34 674 679 157.3
C 12 250 44252 276.96 674 679 157.3
C 12 249 7037 40.41 674 679 157.3
D 12 2 727696 4290.71 673 652 169.4
D 11 192 81436 476.75 673 652 169.4
D 13 29 77066 450.96 673 652 169.4

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