ASTROSAT CZTI

Data Quality Report

Orbit 05763

Creation date: 2024-06-27T14:58:50.791233
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/AS1A02_149T01_9000000740_05763cztM0_level2.evt modeM0/AS1A02_149T01_9000000740_05763cztM0_level2_quad_clean.evt
Size (bytes)454,878,72075,761,280
Size433.8 MB 72.3 MB
Events in quadrant A3,284,208453,419
Events in quadrant B3,483,839458,006
Events in quadrant C3,230,327456,553
Events in quadrant D3,303,268440,271

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144043
B0145642
C0143742
D0145982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69721962.811245%
B69721982.839931%
C69721391.993689%
D69721432.051061%

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 7697 6972 0 0 0.00% 0.00%
B 7697 6973 1 1 0.01% 0.01%
C 7697 6973 0 0 0.00% 0.00%
D 7697 6973 2 2 0.03% 0.03%

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 12 194 8339 42.79 851 831 175.4
A 0 226 8172 41.84 851 831 175.4
A 13 254 3760 16.69 851 831 175.4
B 15 204 54158 321.65 857 837 165.8
B 0 219 51065 302.99 857 837 165.8
B 0 229 20087 116.12 857 837 165.8
C 13 61 6696 30.43 827 832 192.7
C 14 67 3323 12.93 827 832 192.7
C 3 202 1991 6.01 827 832 192.7
D 8 195 57827 280.54 830 803 203.3
D 12 110 49901 241.55 830 803 203.3
D 2 206 25172 119.89 830 803 203.3

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