ASTROSAT CZTI

Data Quality Report

Orbit 22364

Creation date: 2024-06-27T18:39:51.271629
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/AS1A07_007T04_9000003310_22364cztM0_level2.evt modeM0/AS1A07_007T04_9000003310_22364cztM0_level2_quad_clean.evt
Size (bytes)444,136,32092,897,280
Size423.6 MB 88.6 MB
Events in quadrant A3,092,822605,097
Events in quadrant B3,316,385626,273
Events in quadrant C3,173,702590,124
Events in quadrant D3,444,924557,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129882
B0135542
C0131802
D0144792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6223380.610638%
B6223861.381970%
C6223891.430178%
D62231342.153302%

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 7563 6223 0 0 0.00% 0.00%
B 7563 6224 15 15 0.20% 0.24%
C 7563 6224 0 0 0.00% 0.00%
D 7563 6224 81 81 1.07% 1.30%

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 13 254 8991 51.64 801 785 158.9
A 0 226 6918 38.6 801 785 158.9
A 3 137 6560 36.34 801 785 158.9
B 3 64 92643 615.77 808 789 149.2
B 0 229 23043 149.18 808 789 149.2
B 0 197 19875 127.95 808 789 149.2
C 14 238 124202 685.19 777 782 180.1
C 0 10 16477 87.13 777 782 180.1
C 13 61 5428 25.79 777 782 180.1
D 1 52 226965 1229.64 764 741 184.0
D 12 227 168366 911.12 764 741 184.0
D 13 172 131816 712.46 764 741 184.0

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