ASTROSAT CZTI

Data Quality Report

Orbit 06401

Creation date: 2024-06-27T15:06:44.122512
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/AS1C02_011T01_9000000850_06401cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06401cztM0_level2_quad_clean.evt
Size (bytes)681,811,20097,505,280
Size650.2 MB 93.0 MB
Events in quadrant A4,676,959617,335
Events in quadrant B4,141,960631,350
Events in quadrant C3,620,455639,913
Events in quadrant D7,691,033531,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189034
B0172643
C0161073
D0278703

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76344175.462405%
B76343714.859838%
C76341161.519518%
D7634187224.521876%

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 7754 7636 132 132 1.70% 1.73%
B 7754 7636 84 84 1.08% 1.10%
C 7754 7636 0 0 0.00% 0.00%
D 7754 7636 1433 1433 18.48% 18.77%

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 13 251 806773 4116.08 942 920 195.8
A 15 236 157616 800.36 942 920 195.8
A 8 15 76773 387.44 942 920 195.8
B 4 81 283643 1524.02 948 924 185.5
B 0 214 50135 265.28 948 924 185.5
B 4 170 32696 171.27 948 924 185.5
C 8 208 15565 67.53 920 925 216.8
C 9 54 7960 32.45 920 925 216.8
C 13 61 7133 28.64 920 925 216.8
D 4 95 4288418 20992.77 819 792 204.2
D 2 152 121279 589.92 819 792 204.2
D 11 241 116875 568.36 819 792 204.2

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