ASTROSAT CZTI

Data Quality Report

Orbit 43899

Creation date: 2024-06-27T22:57:00.166665
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_009T02_9000005914_43899cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43899cztM0_level2_quad_clean.evt
Size (bytes)602,118,720122,806,080
Size574.2 MB 117.1 MB
Events in quadrant A7,300,347793,694
Events in quadrant B4,444,160853,493
Events in quadrant C4,580,988808,469
Events in quadrant D5,360,349721,563

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278740
B0184050
C0189170
D0213000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77776428.255111%
B77781592.044227%
C77781231.581383%
D77783224.139882%

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 7777 7777 537 537 6.90% 6.90%
B 7778 7778 89 89 1.14% 1.14%
C 7778 7778 98 98 1.26% 1.26%
D 7778 7778 295 295 3.79% 3.79%

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 15 223 1812703 9856.07 875 858 183.8
A 10 83 1119765 6086.63 875 858 183.8
A 15 222 903219 4908.66 875 858 183.8
B 5 235 333497 1911.15 881 853 174.1
B 0 200 200831 1148.94 881 853 174.1
B 7 205 151496 865.49 881 853 174.1
C 15 158 711702 3473.58 862 867 204.6
C 3 233 166535 809.56 862 867 204.6
C 15 157 147848 718.24 862 867 204.6
D 13 171 518577 2345.95 860 830 220.7
D 1 52 268390 1212.33 860 830 220.7
D 12 233 185622 837.31 860 830 220.7

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