ASTROSAT CZTI

Data Quality Report

Orbit 20584

Creation date: 2024-06-27T18:17:06.654168
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_003T04_9000003046_20584cztM0_level2.evt modeM0/AS1A06_003T04_9000003046_20584cztM0_level2_quad_clean.evt
Size (bytes)504,469,44087,503,040
Size481.1 MB 83.4 MB
Events in quadrant A3,098,463567,877
Events in quadrant B3,201,692577,467
Events in quadrant C3,182,398557,798
Events in quadrant D5,389,586528,764

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129841
B0133522
C0131111
D0201311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5983350.584991%
B5983490.818987%
C59831011.688116%
D59835038.407154%

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 7303 5984 0 0 0.00% 0.00%
B 7303 5984 0 0 0.00% 0.00%
C 7303 5984 0 0 0.00% 0.00%
D 7303 5984 380 380 5.20% 6.35%

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 14 239 11110 64.4 801 786 160.3
A 0 226 7008 38.81 801 786 160.3
A 8 205 6119 33.27 801 786 160.3
B 0 189 33139 212.59 800 781 152.2
B 12 111 16494 103.23 800 781 152.2
B 0 228 15781 98.55 800 781 152.2
C 14 238 122149 675.0 778 787 179.8
C 8 208 18120 96.4 778 787 179.8
C 13 61 5474 26.07 778 787 179.8
D 1 20 825024 4449.66 766 747 185.2
D 5 222 736874 3973.8 766 747 185.2
D 1 52 495675 2671.75 766 747 185.2

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