ASTROSAT CZTI

Data Quality Report

Orbit 04242

Creation date: 2024-06-27T14:39:14.987211
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/AS1G05_240T01_9000000536_04242cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04242cztM0_level2_quad_clean.evt
Size (bytes)737,634,24049,815,360
Size703.5 MB 47.5 MB
Events in quadrant A4,444,740256,081
Events in quadrant B3,150,188290,825
Events in quadrant C2,863,997281,949
Events in quadrant D11,464,904248,887

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170482
B0131881
C0126281
D0382421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A615065710.682927%
B6150911.479675%
C6150410.666667%
D6150247840.292683%

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 7370 6150 468 468 6.35% 7.61%
B 7370 6151 4 4 0.05% 0.07%
C 7370 6151 0 0 0.00% 0.00%
D 7370 6151 2524 2524 34.25% 41.03%

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 0 50 1414574 9616.83 728 712 147.0
A 8 15 120106 812.1 728 712 147.0
A 0 149 47281 316.75 728 712 147.0
B 3 0 54609 367.66 765 751 146.5
B 4 48 28844 191.77 765 751 146.5
B 14 167 28440 189.02 765 751 146.5
C 10 65 20546 117.45 726 731 168.7
C 9 144 7208 38.39 726 731 168.7
C 13 61 5957 30.98 726 731 168.7
D 2 63 8257125 51715.54 660 641 159.7
D 2 232 291081 1819.21 660 641 159.7
D 1 52 145422 906.85 660 641 159.7

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