ASTROSAT CZTI

Data Quality Report

Orbit 12993

Creation date: 2024-06-27T16:34:51.132458
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/AS1G08_055T01_9000001912_12993cztM0_level2.evt modeM0/AS1G08_055T01_9000001912_12993cztM0_level2_quad_clean.evt
Size (bytes)588,919,68098,262,720
Size561.6 MB 93.7 MB
Events in quadrant A3,825,610643,804
Events in quadrant B6,460,077568,395
Events in quadrant C3,286,208647,707
Events in quadrant D3,773,142612,360

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159703
B0239582
C0146122
D0163452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7215330.457380%
B7215131718.253638%
C7215100.138600%
D72151261.746362%

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 9141 7218 3 3 0.03% 0.04%
B 9141 7218 688 688 7.53% 9.53%
C 9141 7218 0 0 0.00% 0.00%
D 9141 7218 87 87 0.95% 1.21%

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 12 189 314992 1820.57 854 836 172.6
A 15 222 87031 499.51 854 836 172.6
A 1 162 43649 248.11 854 836 172.6
B 4 239 2265201 15680.3 759 740 144.4
B 0 85 826317 5716.72 759 740 144.4
B 3 64 139299 959.45 759 740 144.4
C 13 61 6118 27.01 841 845 195.3
C 8 128 3730 14.78 841 845 195.3
C 8 112 2255 7.22 841 845 195.3
D 10 157 637904 3228.57 823 799 197.3
D 2 234 23918 117.16 823 799 197.3
D 8 195 13361 63.66 823 799 197.3

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