ASTROSAT CZTI

Data Quality Report

Orbit 45898

Creation date: 2024-06-27T23:17:28.236011
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_033T02_9000006140_45898cztM0_level2.fits modeM0/AS1A13_033T02_9000006140_45898cztM0_level2_quad_clean.evt
Size (bytes)641,822,400118,382,400
Size612.1 MB 112.9 MB
Events in quadrant A6,580,021789,352
Events in quadrant B7,992,647737,779
Events in quadrant C3,565,755806,846
Events in quadrant D5,023,830714,764

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240591
B0291921
C0161801
D0201541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76903935.110533%
B7691133717.383955%
C76911972.561435%
D76914585.955012%

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 7740 7691 0 0 0.00% 0.00%
B 7741 7692 677 677 8.75% 8.80%
C 7741 7692 2 2 0.03% 0.03%
D 7741 7692 196 196 2.53% 2.55%

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 3055022 16119.45 902 882 189.5
A 14 235 14326 70.96 902 882 189.5
A 13 6 13629 67.28 902 882 189.5
B 3 112 4375373 25033.75 864 836 174.7
B 0 245 61904 349.47 864 836 174.7
B 0 183 58308 328.89 864 836 174.7
C 12 249 54628 252.33 895 897 212.9
C 12 2 10308 44.2 895 897 212.9
C 2 14 6136 24.6 895 897 212.9
D 1 52 659767 2905.93 890 861 226.7
D 2 249 326630 1436.72 890 861 226.7
D 12 2 221972 975.15 890 861 226.7

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