ASTROSAT CZTI

Data Quality Report

Orbit 09571

Creation date: 2024-06-27T15:47:53.834719
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/AS1G07_042T01_9000001360_09571cztM0_level2.evt modeM0/AS1G07_042T01_9000001360_09571cztM0_level2_quad_clean.evt
Size (bytes)525,905,280110,079,360
Size501.5 MB 105.0 MB
Events in quadrant A4,365,152713,608
Events in quadrant B3,672,941718,569
Events in quadrant C3,534,179704,964
Events in quadrant D3,853,862683,279

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01790316
B01568938
C0154192
D0160696

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73762363.199566%
B73711421.926469%
C73811091.476765%
D73791191.612685%

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 8431 7384 7 7 0.08% 0.09%
B 8431 7381 3 3 0.04% 0.04%
C 8431 7384 0 0 0.00% 0.00%
D 8431 7384 25 25 0.30% 0.34%

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 1 162 317628 1707.01 917 901 185.5
A 1 178 170803 915.69 917 901 185.5
A 1 161 159123 852.74 917 901 185.5
B 0 214 29208 161.51 917 896 175.3
B 15 255 29032 160.51 917 896 175.3
B 4 80 23019 126.21 917 896 175.3
C 9 236 28236 131.17 898 903 208.4
C 13 61 6648 27.57 898 903 208.4
C 9 68 3653 13.2 898 903 208.4
D 13 137 224076 1023.81 892 872 218.0
D 7 71 88593 402.37 892 872 218.0
D 2 234 44574 200.46 892 872 218.0

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