ASTROSAT CZTI

Data Quality Report

Orbit 13585

Creation date: 2024-06-27T16:43:02.212591
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_047T01_9000002002_13585cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13585cztM0_level2_quad_clean.evt
Size (bytes)80,061,12017,176,320
Size76.4 MB 16.4 MB
Events in quadrant A450,149114,780
Events in quadrant B506,807115,993
Events in quadrant C464,988114,806
Events in quadrant D938,125103,354

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019181
B020901
C019301
D034261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90690.993377%
B90650.551876%
C90610.110375%
D90611712.913907%

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 907 907 0 0 0.00% 0.00%
B 907 907 1 1 0.11% 0.11%
C 907 907 0 0 0.00% 0.00%
D 907 907 122 122 13.45% 13.45%

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 4 2 4132 157.23 114 112 25.6
A 15 69 1772 64.93 114 112 25.6
A 1 162 1694 61.88 114 112 25.6
B 0 189 24327 991.57 113 110 24.4
B 0 182 18137 738.12 113 110 24.4
B 10 244 12586 510.83 113 110 24.4
C 3 233 41174 1530.33 107 107 26.8
C 14 234 1940 68.31 107 107 26.8
C 4 175 1543 53.51 107 107 26.8
D 5 222 370102 13407.23 105 101 27.6
D 1 20 157556 5705.49 105 101 27.6
D 2 234 3763 132.7 105 101 27.6

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