ASTROSAT CZTI

Data Quality Report

Orbit 44838

Creation date: 2024-06-27T23:07:04.434404
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_017T01_9000006028_44838cztM0_level2.fits modeM0/AS1A13_017T01_9000006028_44838cztM0_level2_quad_clean.evt
Size (bytes)568,846,080107,089,920
Size542.5 MB 102.1 MB
Events in quadrant A5,091,218734,074
Events in quadrant B3,457,515769,222
Events in quadrant C3,387,818731,672
Events in quadrant D8,614,515552,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206022
B0146592
C0145702
D0301902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65232173.326690%
B6523921.410394%
C65231332.038939%
D6522139521.389144%

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 7593 6524 14 14 0.18% 0.21%
B 7593 6524 19 19 0.25% 0.29%
C 7593 6524 71 71 0.94% 1.09%
D 7592 6523 1325 1325 17.45% 20.31%

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 2167171 14039.99 747 729 154.3
A 13 248 26092 164.37 747 729 154.3
A 13 254 10273 61.85 747 729 154.3
B 5 255 160748 1086.1 753 729 147.3
B 0 155 103632 698.43 753 729 147.3
B 3 112 39674 264.33 753 729 147.3
C 12 2 385101 2201.48 742 746 174.6
C 3 233 47374 267.07 742 746 174.6
C 12 250 27036 150.58 742 746 174.6
D 13 187 3749387 22122.17 675 655 169.5
D 1 52 470929 2775.2 675 655 169.5
D 11 241 374619 2206.85 675 655 169.5

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