ASTROSAT CZTI

Data Quality Report

Orbit 10482

Creation date: 2024-06-27T16:00:00.351863
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/AS1A03_084T01_9000001514_10482cztM0_level2.evt modeM0/AS1A03_084T01_9000001514_10482cztM0_level2_quad_clean.evt
Size (bytes)1,443,879,360205,997,760
Size1.3 GB 196.5 MB
Events in quadrant A14,987,7571,187,551
Events in quadrant B9,481,9091,306,351
Events in quadrant C8,001,8031,295,624
Events in quadrant D10,109,7141,279,432

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0510153
B0510159
C0510153
D0501142

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07062215663
B05778119450
C05168716828
D05659115588

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0454
B0476
C0476
D0465

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16800347620.690476%
B165585713.448484%
C167972791.661011%
D176743411.929388%

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 22070 17154 3093 3093 14.01% 18.03%
B 22070 16951 192 192 0.87% 1.13%
C 22070 17145 2 2 0.01% 0.01%
D 22070 17803 32 32 0.14% 0.18%

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 15 239 7670989 20593.88 1829 1790 372.4
A 3 80 156720 416.03 1829 1790 372.4
A 13 251 51281 132.9 1829 1790 372.4
B 4 239 988952 2519.78 2073 2028 391.7
B 11 51 220798 558.56 2073 2028 391.7
B 0 214 78062 194.13 2073 2028 391.7
C 14 234 40087 80.23 2042 2055 474.0
C 13 61 15176 27.68 2042 2055 474.0
C 14 67 5432 7.12 2042 2055 474.0
D 8 195 1145962 2260.34 2121 2065 506.1
D 1 20 384023 754.75 2121 2065 506.1
D 1 52 293186 575.25 2121 2065 506.1

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