ASTROSAT CZTI

Data Quality Report

Orbit 05361

Creation date: 2024-06-27T14:54:20.156273
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_106T01_9000000678_05361cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05361cztM0_level2_quad_clean.evt
Size (bytes)467,259,84060,114,240
Size445.6 MB 57.3 MB
Events in quadrant A3,461,503347,761
Events in quadrant B3,494,043327,837
Events in quadrant C3,151,671350,398
Events in quadrant D3,591,165330,742

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016525
B016533
C016422
D016432

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181773272
B0179883283
C0169402957
D0187043535

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C031
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66315137.736390%
B66514016.029169%
C66392724.097003%
D66163615.456469%

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 8404 7126 74 74 0.88% 1.04%
B 8403 7149 19 19 0.23% 0.27%
C 8404 7144 0 0 0.00% 0.00%
D 8404 7132 37 37 0.44% 0.52%

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 188235 1130.03 800 781 165.9
A 0 50 155298 931.48 800 781 165.9
A 14 111 37762 222.93 800 781 165.9
B 4 80 125939 787.51 816 795 158.9
B 4 81 75817 472.1 816 795 158.9
B 15 204 47454 293.62 816 795 158.9
C 1 16 39780 211.83 791 792 184.0
C 8 128 10279 51.55 791 792 184.0
C 13 61 6422 30.59 791 792 184.0
D 2 63 164401 841.36 785 758 194.5
D 2 234 102808 524.68 785 758 194.5
D 8 195 93811 478.42 785 758 194.5

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