ASTROSAT CZTI

Data Quality Report

Orbit 43565

Creation date: 2024-06-27T22:53:14.743359
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_174T01_9000005880_43565cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43565cztM0_level2_quad_clean.evt
Size (bytes)1,246,075,20082,586,880
Size1.2 GB 78.8 MB
Events in quadrant A7,194,529749,091
Events in quadrant B4,183,793786,616
Events in quadrant C18,184,240333,673
Events in quadrant D16,015,474130,006

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264111
B0173953
C0587891
D0523721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A709574910.556730%
B70951592.241015%
C7095671194.587738%
D7095709499.985906%

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 7125 7097 276 276 3.87% 3.89%
B 7125 7097 24 24 0.34% 0.34%
C 7125 7095 6512 6512 91.40% 91.78%
D 7124 7094 5950 5950 83.52% 83.87%

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 0 228 1651464 10222.81 776 760 161.5
A 15 222 814090 5036.95 776 760 161.5
A 10 99 671890 4156.31 776 760 161.5
B 4 206 553447 3540.37 796 771 156.1
B 12 3 116300 740.06 796 771 156.1
B 0 200 65429 414.19 796 771 156.1
C 15 174 10371453 123566.38 356 358 83.9
C 15 142 3897002 46426.55 356 358 83.9
C 15 158 921755 10977.98 356 358 83.9
D 4 216 8300587 158104.99 167 160 52.5
D 4 212 3449818 65708.45 167 160 52.5
D 5 222 474510 9035.33 167 160 52.5

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