ASTROSAT CZTI

Data Quality Report

Orbit 09912

Creation date: 2024-06-27T15:52:23.611419
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/AS1A03_053T01_9000001410_09912cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09912cztM0_level2_quad_clean.evt
Size (bytes)493,977,60090,619,200
Size471.1 MB 86.4 MB
Events in quadrant A3,066,173588,646
Events in quadrant B3,825,296587,970
Events in quadrant C2,987,993581,365
Events in quadrant D4,646,692540,120

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134363
B0156562
C0132802
D0181742

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6393590.922884%
B63931412.205537%
C6393370.578758%
D63932513.926169%

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 7568 6394 0 0 0.00% 0.00%
B 7568 6394 49 49 0.65% 0.77%
C 7568 6394 0 0 0.00% 0.00%
D 7568 6394 172 172 2.27% 2.69%

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 0 226 7612 42.69 793 779 160.1
A 12 194 6718 37.11 793 779 160.1
A 13 253 4740 24.75 793 779 160.1
B 4 81 435618 2860.09 791 775 152.0
B 4 239 165791 1085.36 791 775 152.0
B 0 219 33212 213.35 791 775 152.0
C 9 221 10736 56.38 760 765 176.9
C 14 128 7841 40.01 760 765 176.9
C 12 4 6225 30.87 760 765 176.9
D 8 195 482146 2451.25 747 729 196.4
D 2 16 283109 1437.8 747 729 196.4
D 1 52 281566 1429.95 747 729 196.4

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