ASTROSAT CZTI

Data Quality Report

Orbit 47160

Creation date: 2024-06-27T23:32:23.055238
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/AS1C09_003T01_9000006298_47160cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47160cztM0_level2_quad_clean.evt
Size (bytes)534,936,960126,498,240
Size510.2 MB 120.6 MB
Events in quadrant A7,754,557844,489
Events in quadrant B3,898,064867,208
Events in quadrant C3,506,892810,213
Events in quadrant D4,021,448751,922

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286680
B0171560
C0166360
D0178520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80021952.436891%
B8002811.012247%
C8002370.462384%
D8002760.949763%

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 8002 8002 8 8 0.10% 0.10%
B 8002 8002 19 19 0.24% 0.24%
C 8002 8002 25 25 0.31% 0.31%
D 8002 8002 56 56 0.70% 0.70%

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 4209329 23121.21 882 864 182.0
A 15 235 59779 323.68 882 864 182.0
A 9 191 22520 118.98 882 864 182.0
B 0 190 123066 706.92 876 847 172.9
B 4 21 75517 431.9 876 847 172.9
B 0 200 49607 282.03 876 847 172.9
C 14 254 146888 729.48 851 852 200.2
C 15 208 22787 109.57 851 852 200.2
C 3 233 11367 52.52 851 852 200.2
D 12 233 209368 961.58 858 828 216.9
D 1 47 75057 342.27 858 828 216.9
D 2 249 70447 321.01 858 828 216.9

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