ASTROSAT CZTI

Data Quality Report

Orbit 47060

Creation date: 2024-06-27T23:31:16.360874
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_005T01_9000006296_47060cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47060cztM0_level2_quad_clean.evt
Size (bytes)592,678,080121,464,000
Size565.2 MB 115.8 MB
Events in quadrant A7,335,041808,322
Events in quadrant B4,577,616825,059
Events in quadrant C3,459,082807,887
Events in quadrant D5,969,984700,046

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271640
B0187872
C0161560
D0232770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77082593.360145%
B77072413.127027%
C7708170.220550%
D77086638.601453%

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 7708 7708 4 4 0.05% 0.05%
B 7707 7707 59 59 0.77% 0.77%
C 7708 7708 6 6 0.08% 0.08%
D 7708 7708 520 520 6.75% 6.75%

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 3941037 22178.1 853 834 177.7
A 13 248 25961 141.43 853 834 177.7
A 7 3 23768 129.09 853 834 177.7
B 3 112 704718 4207.42 844 817 167.3
B 4 171 158207 940.77 844 817 167.3
B 8 234 103751 615.27 844 817 167.3
C 5 4 128178 655.38 831 835 194.3
C 14 254 68952 350.57 831 835 194.3
C 3 233 10245 48.43 831 835 194.3
D 11 224 745667 3670.25 811 788 203.0
D 12 233 646460 3181.42 811 788 203.0
D 2 249 603101 2967.78 811 788 203.0

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