ASTROSAT CZTI

Data Quality Report

Orbit 16282

Creation date: 2024-06-27T17:20:19.274842
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/AS1A05_072T05_9000002394_16282cztM0_level2.evt modeM0/AS1A05_072T05_9000002394_16282cztM0_level2_quad_clean.evt
Size (bytes)452,802,24059,777,280
Size431.8 MB 57.0 MB
Events in quadrant A3,443,916342,991
Events in quadrant B3,347,025358,771
Events in quadrant C3,230,492352,969
Events in quadrant D3,288,379340,015

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138042
B0135011
C0130831
D0133921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59351422.392586%
B5935761.280539%
C5935891.499579%
D59351171.971356%

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 7221 5937 54 54 0.75% 0.91%
B 7221 5937 0 0 0.00% 0.00%
C 7221 5937 0 0 0.00% 0.00%
D 7221 5937 57 57 0.79% 0.96%

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 15 174 357078 2290.72 787 773 155.5
A 9 143 63532 403.48 787 773 155.5
A 0 226 6949 39.71 787 773 155.5
B 15 35 106330 715.0 797 779 147.6
B 0 189 51833 345.84 797 779 147.6
B 0 198 46012 306.41 797 779 147.6
C 14 238 121839 690.79 767 774 175.3
C 3 233 107819 610.79 767 774 175.3
C 0 207 7861 40.44 767 774 175.3
D 1 52 268286 1445.14 771 751 185.1
D 10 70 72915 389.81 771 751 185.1
D 13 104 27808 146.15 771 751 185.1

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