ASTROSAT CZTI

Data Quality Report

Orbit 33832

Creation date: 2024-06-27T20:53:11.087697
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/AS1A11_106T03_9000004826_33832cztM0_level2.evt modeM0/AS1A11_106T03_9000004826_33832cztM0_level2_quad_clean.evt
Size (bytes)68,149,44014,777,280
Size65.0 MB 14.1 MB
Events in quadrant A364,51299,127
Events in quadrant B507,04198,540
Events in quadrant C571,10994,431
Events in quadrant D566,81294,458

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072
B061
C050
D061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0171
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157639
B0201337
C0219941
D0224034

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75310.132802%
B753303.984064%
C753466.108898%
D75210.132979%

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 753 753 0 0 0.00% 0.00%
B 753 753 18 18 2.39% 2.39%
C 753 753 29 29 3.85% 3.85%
D 753 753 0 0 0.00% 0.00%

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 13 6 5974 293.7 90 89 20.0
A 10 83 4707 230.47 90 89 20.0
A 13 254 1251 57.99 90 89 20.0
B 5 172 65658 3340.76 90 88 19.6
B 5 200 31921 1621.87 90 88 19.6
B 0 190 23899 1213.16 90 88 19.6
C 0 10 90798 4056.55 88 88 22.4
C 9 187 55929 2497.21 88 88 22.4
C 15 214 36396 1623.69 88 88 22.4
D 8 195 178082 7218.75 89 86 24.7
D 12 235 13026 524.79 89 86 24.7
D 2 152 7310 292.97 89 86 24.7

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