ASTROSAT CZTI

Data Quality Report

Orbit 11031

Creation date: 2024-06-27T16:07:30.729794
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_130T03_9000001602_11031cztM0_level2.evt modeM0/AS1A04_130T03_9000001602_11031cztM0_level2_quad_clean.evt
Size (bytes)607,435,20090,025,920
Size579.3 MB 85.9 MB
Events in quadrant A4,618,892568,054
Events in quadrant B5,143,368553,982
Events in quadrant C3,498,347568,939
Events in quadrant D4,649,983536,122

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01482
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01854733
B01985132
C01515925
D01846623

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71643044.243439%
B71646679.310441%
C71632253.141142%
D71654586.392184%

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 9343 7171 17 17 0.18% 0.24%
B 9343 7171 274 274 2.93% 3.82%
C 9343 7173 0 0 0.00% 0.00%
D 9343 7172 195 195 2.09% 2.72%

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 15 174 827989 4453.02 919 902 185.7
A 8 5 221836 1189.5 919 902 185.7
A 0 12 17043 86.9 919 902 185.7
B 4 239 1481549 8503.22 899 877 174.1
B 4 81 70547 400.1 899 877 174.1
B 0 197 22496 124.15 899 877 174.1
C 13 61 6719 28.04 895 899 207.6
C 14 234 3080 10.51 895 899 207.6
C 9 54 3077 10.49 895 899 207.6
D 2 14 297472 1388.94 882 857 213.6
D 13 104 247554 1155.19 882 857 213.6
D 10 253 228130 1064.24 882 857 213.6

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