ASTROSAT CZTI

Data Quality Report

Orbit 09546

Creation date: 2024-06-27T15:47:33.373048
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_049T02_9000001354_09546cztM0_level2.evt modeM0/AS1G07_049T02_9000001354_09546cztM0_level2_quad_clean.evt
Size (bytes)464,382,720128,280,960
Size442.9 MB 122.3 MB
Events in quadrant A3,211,027852,107
Events in quadrant B3,344,723887,611
Events in quadrant C3,090,114840,783
Events in quadrant D3,935,233810,477

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01445525
B01480213
C01437012
D01665716

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7097460.648161%
B7103741.041813%
C7103400.563142%
D71011582.225039%

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 7803 7109 0 0 0.00% 0.00%
B 7803 7109 6 6 0.08% 0.08%
C 7803 7109 1 1 0.01% 0.01%
D 7803 7109 79 79 1.01% 1.11%

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 1 162 49162 291.22 809 789 166.1
A 1 178 15647 89.45 809 789 166.1
A 1 161 14358 81.69 809 789 166.1
B 0 214 60398 384.83 813 794 154.9
B 0 187 35592 224.67 813 794 154.9
B 4 80 28401 178.24 813 794 154.9
C 13 61 6032 28.58 790 791 183.4
C 14 234 5072 23.35 790 791 183.4
C 8 222 2013 6.66 790 791 183.4
D 1 52 457413 2304.44 774 754 198.2
D 13 122 185983 934.72 774 754 198.2
D 12 227 173466 871.56 774 754 198.2

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