ASTROSAT CZTI

Data Quality Report

Orbit 10600

Creation date: 2024-06-27T16:01:20.818986
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/AS1T01_191T01_9000001536_10600cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10600cztM0_level2_quad_clean.evt
Size (bytes)574,634,880107,841,600
Size548.0 MB 102.8 MB
Events in quadrant A3,481,519705,948
Events in quadrant B5,058,514688,914
Events in quadrant C3,389,907709,075
Events in quadrant D4,983,013659,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150561
B0196090
C0148720
D0196230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72242473.419158%
B72246498.983942%
C72241782.464009%
D72242883.986711%

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 7224 7224 2 2 0.03% 0.03%
B 7224 7224 279 279 3.86% 3.86%
C 7224 7224 2 2 0.03% 0.03%
D 7224 7224 97 97 1.34% 1.34%

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 13 251 55371 295.18 879 861 184.7
A 1 162 19604 101.5 879 861 184.7
A 0 226 7852 37.86 879 861 184.7
B 4 239 1547545 9159.58 865 846 168.9
B 0 219 68763 402.21 865 846 168.9
B 0 214 36992 214.06 865 846 168.9
C 14 225 10286 47.0 861 869 200.3
C 14 234 9367 42.42 861 869 200.3
C 13 61 6535 28.28 861 869 200.3
D 2 16 677844 3249.56 850 827 208.3
D 1 52 348075 1666.73 850 827 208.3
D 8 195 301510 1443.22 850 827 208.3

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