ASTROSAT CZTI

Data Quality Report

Orbit 14304

Creation date: 2024-06-27T16:53:14.936010
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/AS1A04_130T03_9000002108_14304cztM0_level2.evt modeM0/AS1A04_130T03_9000002108_14304cztM0_level2_quad_clean.evt
Size (bytes)563,296,32088,326,720
Size537.2 MB 84.2 MB
Events in quadrant A3,946,222546,250
Events in quadrant B4,397,568544,781
Events in quadrant C4,067,458529,516
Events in quadrant D4,134,622527,050

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163193
B0178292
C0162682
D0172902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75682563.382664%
B75683254.294397%
C75681682.219873%
D75681962.589852%

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 7889 7569 0 0 0.00% 0.00%
B 7889 7569 27 27 0.34% 0.36%
C 7889 7569 0 0 0.00% 0.00%
D 7889 7570 16 16 0.20% 0.21%

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 15 171616 866.71 952 928 196.9
A 12 189 104302 524.91 952 928 196.9
A 0 226 8429 38.09 952 928 196.9
B 0 229 375710 2032.25 941 916 184.4
B 10 245 174761 942.64 941 916 184.4
B 0 189 48581 258.45 941 916 184.4
C 3 233 481621 2220.46 919 922 216.5
C 13 61 6775 27.04 919 922 216.5
C 14 234 3602 12.38 919 922 216.5
D 5 222 261643 1178.79 925 903 221.2
D 12 110 147576 663.1 925 903 221.2
D 13 122 101975 456.94 925 903 221.2

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