ASTROSAT CZTI

Data Quality Report

Orbit 09022

Creation date: 2024-06-27T15:40:11.230300
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_029T02_9000001256_09022cztM0_level2.evt modeM0/AS1G07_029T02_9000001256_09022cztM0_level2_quad_clean.evt
Size (bytes)595,992,96094,602,240
Size568.4 MB 90.2 MB
Events in quadrant A6,611,554580,207
Events in quadrant B3,641,349606,760
Events in quadrant C3,221,608599,969
Events in quadrant D4,088,617577,599

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244032
B0155561
C0147491
D0170741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71805127.130919%
B71801281.782730%
C7180460.640669%
D71801271.768802%

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 7360 7183 474 474 6.44% 6.60%
B 7360 7183 17 17 0.23% 0.24%
C 7360 7183 0 0 0.00% 0.00%
D 7360 7183 34 34 0.46% 0.47%

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 8 5 3098877 18074.2 837 817 171.4
A 13 251 111728 647.06 837 817 171.4
A 1 162 99735 577.09 837 817 171.4
B 4 48 199817 1215.4 849 826 163.7
B 0 214 34441 205.31 849 826 163.7
B 10 245 30638 182.09 849 826 163.7
C 13 61 6380 28.78 824 827 192.9
C 8 128 3868 15.76 824 827 192.9
C 8 112 2478 8.56 824 827 192.9
D 6 225 388687 1779.2 822 801 218.0
D 4 95 159912 729.83 822 801 218.0
D 13 104 106977 487.02 822 801 218.0

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