ASTROSAT CZTI

Data Quality Report

Orbit 02407

Creation date: 2024-06-27T14:17:25.391519
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/AS1T01_041T01_9000000362_02407cztM0_level2.evt modeM0/AS1T01_041T01_9000000362_02407cztM0_level2_quad_clean.evt
Size (bytes)717,269,76068,520,960
Size684.0 MB 65.3 MB
Events in quadrant A4,275,488384,471
Events in quadrant B3,792,996390,750
Events in quadrant C5,663,322376,736
Events in quadrant D7,458,616376,191

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179932
B0167381
C0220721
D0278461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78533754.775245%
B78531922.444926%
C78533874.928053%
D7853179322.832039%

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 8138 7855 124 124 1.52% 1.58%
B 8138 7855 4 4 0.05% 0.05%
C 8138 7855 298 298 3.66% 3.79%
D 8138 7855 1268 1268 15.58% 16.14%

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 8 14 475779 2450.1 935 913 193.8
A 8 15 124664 638.5 935 913 193.8
A 3 1 48092 243.42 935 913 193.8
B 15 85 42343 219.34 955 929 188.8
B 4 200 30071 154.35 955 929 188.8
B 10 244 26851 137.29 955 929 188.8
C 5 234 2053309 9599.53 904 907 213.8
C 14 223 61099 281.53 904 907 213.8
C 1 3 8853 37.17 904 907 213.8
D 9 66 4122487 20694.67 828 805 199.2
D 11 130 61798 306.24 828 805 199.2
D 2 31 30982 151.52 828 805 199.2

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