ASTROSAT CZTI

Data Quality Report

Orbit 14099

Creation date: 2024-06-27T16:50:20.952151
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/AS1G08_022T01_9000002078_14099cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14099cztM0_level2_quad_clean.evt
Size (bytes)475,902,72096,793,920
Size453.9 MB 92.3 MB
Events in quadrant A3,055,679663,661
Events in quadrant B4,642,266632,762
Events in quadrant C2,958,454626,791
Events in quadrant D3,353,435593,442

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127072
B0176861
C0124071
D0137961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5936641.078167%
B59364938.305256%
C5936310.522237%
D59362273.824124%

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 7212 5938 1 1 0.01% 0.02%
B 7212 5938 259 259 3.59% 4.36%
C 7212 5938 1 1 0.01% 0.02%
D 7212 5938 171 171 2.37% 2.88%

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 9 143 70292 452.61 764 750 153.6
A 12 189 34737 221.2 764 750 153.6
A 8 15 14580 90.01 764 750 153.6
B 10 16 1578984 11351.94 739 723 139.0
B 0 189 60759 431.82 739 723 139.0
B 0 229 30254 212.41 739 723 139.0
C 3 233 115746 690.98 727 732 166.5
C 0 207 6793 36.41 727 732 166.5
C 13 61 5316 27.54 727 732 166.5
D 10 157 505640 2684.96 708 694 188.1
D 8 195 88424 466.49 708 694 188.1
D 1 52 43663 228.48 708 694 188.1

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