ASTROSAT CZTI

Data Quality Report

Orbit 16225

Creation date: 2024-06-27T17:19:36.464753
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/AS1T02_112T01_9000002390_16225cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16225cztM0_level2_quad_clean.evt
Size (bytes)479,563,20098,752,320
Size457.3 MB 94.2 MB
Events in quadrant A3,587,628643,826
Events in quadrant B3,755,029651,165
Events in quadrant C3,464,659634,436
Events in quadrant D3,292,164625,141

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147823
B0151692
C0143492
D0135892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62431101.761973%
B62431312.098350%
C62431512.418709%
D6244961.537476%

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 7559 6245 4 4 0.05% 0.06%
B 7559 6245 1 1 0.01% 0.02%
C 7559 6245 0 0 0.00% 0.00%
D 7560 6246 1 1 0.01% 0.02%

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 80017 453.28 883 868 174.6
A 0 253 57520 324.44 883 868 174.6
A 8 247 31289 174.22 883 868 174.6
B 10 16 207658 1270.29 874 857 162.8
B 0 198 53241 321.77 874 857 162.8
B 0 229 20243 119.08 874 857 162.8
C 14 238 133019 684.29 842 851 193.1
C 3 233 30776 154.93 842 851 193.1
C 7 247 12235 58.94 842 851 193.1
D 2 234 21954 101.73 862 839 207.6
D 1 52 13912 62.98 862 839 207.6
D 2 120 8911 38.89 862 839 207.6

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