ASTROSAT CZTI

Data Quality Report

Orbit 48538

Creation date: 2024-09-19T21:50:34.012107
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_037T01_9000006436_48538cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48538cztM0_level2_quad_clean.evt
Size (bytes)571,870,080126,432,000
Size545.4 MB 120.6 MB
Events in quadrant A8,268,354810,791
Events in quadrant B4,232,037847,433
Events in quadrant C3,672,464836,067
Events in quadrant D4,339,934746,876

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030828140
B01888779
C01765585
D01927477

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01722
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84425866.941483%
B84505406.390533%
C84492893.420523%
D84523744.424988%

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 8548 8469 5 5 0.06% 0.06%
B 8548 8471 71 71 0.83% 0.84%
C 8552 8471 0 0 0.00% 0.00%
D 8550 8467 52 52 0.61% 0.61%

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 4375876 22162.88 929 904 197.4
A 12 189 273228 1379.55 929 904 197.4
A 13 248 22340 108.59 929 904 197.4
B 5 255 407508 2189.16 928 897 185.7
B 12 16 84372 449.42 928 897 185.7
B 0 183 27835 145.03 928 897 185.7
C 14 254 27871 122.66 933 935 219.6
C 13 61 6247 24.19 933 935 219.6
C 10 20 4268 15.18 933 935 219.6
D 2 165 664228 2863.69 927 895 231.6
D 2 249 65062 277.02 927 895 231.6
D 12 233 46785 198.11 927 895 231.6

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