ASTROSAT CZTI

Data Quality Report

Orbit 20221216_C07_001T02_9000005426_level2

Creation date: 2024-01-05T11:44:14.007896
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/AS1C07_001T02_9000005426cztM0_level2.fits modeM0/AS1C07_001T02_9000005426cztM0_level2_quad_clean.evt
Size (bytes)432,757,440640,440,000
Size412.7 MB 610.8 MB
Events in quadrant A2,569,5764,167,354
Events in quadrant B2,498,7604,257,798
Events in quadrant C2,583,4724,057,299
Events in quadrant D2,226,1283,688,510

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01176870
B0976630
C0956740
D01161260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09600
B09600
C09600
D09600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4703711292.400238%
B470372670.567638%
C47037970.206221%
D4703713492.867955%

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 63672 46973 0 0 0.00% 0.00%
B 63672 47007 0 0 0.00% 0.00%
C 63672 47027 0 0 0.00% 0.00%
D 63672 46992 0 0 0.00% 0.00%

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 9 19 2116 8.76 671 631 169.6
A 0 29 2106 8.7 671 631 169.6
A 7 110 2088 8.59 671 631 169.6
B 2 9 2173 11.87 660 630 130.0
B 3 17 1794 8.96 660 630 130.0
B 5 128 1758 8.68 660 630 130.0
C 1 81 2137 8.46 683 642 176.8
C 1 80 2051 7.97 683 642 176.8
C 1 65 1810 6.61 683 642 176.8
D 4 160 1714 6.73 637 585 167.8
D 7 3 1680 6.53 637 585 167.8
D 6 231 1604 6.07 637 585 167.8

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