ASTROSAT CZTI

Data Quality Report

Orbit 11193

Creation date: 2024-06-27T16:09:34.956882
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/AS1A04_171T01_9000001634_11193cztM0_level2.evt modeM0/AS1A04_171T01_9000001634_11193cztM0_level2_quad_clean.evt
Size (bytes)647,706,24074,626,560
Size617.7 MB 71.2 MB
Events in quadrant A5,620,926427,046
Events in quadrant B4,740,516439,743
Events in quadrant C3,617,441444,945
Events in quadrant D5,117,113414,089

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01564
B01560
C01562
D01562

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022169390
B019536392
C016563335
D021012758

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76736608.601590%
B76705226.805737%
C76842783.617907%
D76455857.652060%

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 7757 7715 233 233 3.00% 3.02%
B 7764 7711 166 166 2.14% 2.15%
C 7792 7722 0 0 0.00% 0.00%
D 7752 7672 199 199 2.57% 2.59%

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 1961790 10359.47 911 888 189.3
A 8 15 126911 665.78 911 888 189.3
A 14 63 12008 58.75 911 888 189.3
B 4 239 757788 4281.59 906 882 176.8
B 10 16 229603 1293.81 906 882 176.8
B 4 80 74248 415.01 906 882 176.8
C 8 128 15678 68.13 919 920 216.6
C 8 112 8211 33.66 919 920 216.6
C 14 234 7252 29.23 919 920 216.6
D 2 14 460098 2118.46 888 862 216.8
D 1 52 363236 1671.63 888 862 216.8
D 10 253 348177 1602.16 888 862 216.8

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