ASTROSAT CZTI

Data Quality Report

Orbit 10671

Creation date: 2024-06-27T16:02:16.598006
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/AS1A03_097T01_9000001540_10671cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10671cztM0_level2_quad_clean.evt
Size (bytes)554,109,12089,496,000
Size528.4 MB 85.4 MB
Events in quadrant A3,416,699565,030
Events in quadrant B4,403,151559,457
Events in quadrant C3,340,967565,152
Events in quadrant D5,125,428512,252

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152033
B0179402
C0150842
D0198252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7289821.124983%
B72893675.034984%
C7289500.685965%
D72894556.242283%

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 7494 7292 0 0 0.00% 0.00%
B 7494 7292 153 153 2.04% 2.10%
C 7494 7292 4 4 0.05% 0.05%
D 7494 7292 319 319 4.26% 4.37%

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 4 2 106372 606.86 847 830 173.9
A 1 162 21135 116.75 847 830 173.9
A 11 29 9793 51.54 847 830 173.9
B 4 239 980978 6054.97 843 819 161.9
B 0 214 82164 502.51 843 819 161.9
B 15 204 40205 243.31 843 819 161.9
C 4 254 50430 254.79 833 838 194.6
C 4 175 27684 137.92 833 838 194.6
C 14 67 6439 28.77 833 838 194.6
D 10 199 885460 4556.35 801 776 194.2
D 8 195 673319 3463.77 801 776 194.2
D 12 233 169106 866.94 801 776 194.2

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