ASTROSAT CZTI

Data Quality Report

Orbit 47713

Creation date: 2024-07-25T02:22:46.813087
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/AS1T05_213T01_9000006344_47713cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47713cztM0_level2_quad_clean.evt
Size (bytes)688,510,080126,964,800
Size656.6 MB 121.1 MB
Events in quadrant A8,387,592835,608
Events in quadrant B6,388,202816,285
Events in quadrant C3,835,300861,893
Events in quadrant D6,235,524756,076

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307591
B0246471
C0178461
D0244131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82644755.747822%
B826485310.321878%
C8264961.161665%
D82646037.296709%

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 8304 8264 4 4 0.05% 0.05%
B 8304 8264 496 496 5.97% 6.00%
C 8304 8264 34 34 0.41% 0.41%
D 8304 8264 620 620 7.47% 7.50%

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 4674860 23830.88 930 908 196.1
A 0 243 48273 241.5 930 908 196.1
A 9 191 38263 190.46 930 908 196.1
B 5 255 1637164 8971.75 913 885 182.4
B 4 21 515424 2821.23 913 885 182.4
B 0 200 286533 1566.21 913 885 182.4
C 14 254 143840 661.51 914 916 216.1
C 12 2 116708 535.93 914 916 216.1
C 12 250 16492 72.09 914 916 216.1
D 10 181 1305514 5749.84 906 874 226.9
D 2 165 1112326 4898.42 906 874 226.9
D 5 171 76319 332.5 906 874 226.9

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