ASTROSAT CZTI

Data Quality Report

Orbit 19716

Creation date: 2024-06-27T18:05:56.511436
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/AS1A05_013T01_9000002944_19716cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19716cztM0_level2_quad_clean.evt
Size (bytes)462,363,84078,497,280
Size440.9 MB 74.9 MB
Events in quadrant A3,280,035484,766
Events in quadrant B3,339,249496,973
Events in quadrant C3,464,365473,535
Events in quadrant D3,471,138461,849

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137912
B0138442
C0140822
D0144042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6593661.001062%
B6593550.834218%
C6593811.228576%
D6593751.137570%

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 7748 6594 0 0 0.00% 0.00%
B 7748 6593 0 0 0.00% 0.00%
C 7748 6593 0 0 0.00% 0.00%
D 7748 6594 23 23 0.30% 0.35%

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 0 23 76548 453.33 830 812 167.1
A 0 226 11793 65.73 830 812 167.1
A 3 137 6487 33.97 830 812 167.1
B 4 171 28017 173.54 837 818 156.7
B 12 111 18929 115.55 837 818 156.7
B 11 111 16141 97.77 837 818 156.7
C 3 233 146252 781.13 809 815 186.2
C 14 238 127156 678.57 809 815 186.2
C 7 247 39792 209.34 809 815 186.2
D 1 52 222172 1129.66 812 789 196.0
D 2 16 125265 635.17 812 789 196.0
D 12 225 26875 133.11 812 789 196.0

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