ASTROSAT CZTI

Data Quality Report

Orbit 19653

Creation date: 2024-06-27T18:05:14.390038
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/AS1A06_003T02_9000002926_19653cztM0_level2.evt modeM0/AS1A06_003T02_9000002926_19653cztM0_level2_quad_clean.evt
Size (bytes)2,007,426,240317,810,880
Size1.9 GB 303.1 MB
Events in quadrant A11,385,3392,113,021
Events in quadrant B12,169,9792,130,402
Events in quadrant C11,473,0872,041,070
Events in quadrant D24,096,7991,638,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05040
B05040
C05040
D05040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0509605
B0525955
C0507655
D0888755

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247322761.115963%
B247333951.597057%
C247333541.431286%
D24733460618.622892%

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 37613 24736 22 22 0.06% 0.09%
B 37614 24736 77 77 0.20% 0.31%
C 37614 24737 0 0 0.00% 0.00%
D 37614 24737 4204 4204 11.18% 16.99%

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 5 16 130543 217.78 2918 2855 586.3
A 0 226 25172 38.06 2918 2855 586.3
A 3 137 23491 35.2 2918 2855 586.3
B 7 220 278425 499.97 2906 2833 551.2
B 3 112 241841 433.6 2906 2833 551.2
B 4 216 89225 156.73 2906 2833 551.2
C 14 238 435702 658.25 2815 2831 657.6
C 3 233 43313 61.56 2815 2831 657.6
C 13 61 19732 25.7 2815 2831 657.6
D 1 20 9000178 14757.1 2525 2450 609.7
D 1 52 2902232 4755.91 2525 2450 609.7
D 12 218 2049064 3356.63 2525 2450 609.7

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