ASTROSAT CZTI

Data Quality Report

Orbit 16471

Creation date: 2024-06-27T17:23:06.010779
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/AS1C04_007T03_9000002436_16471cztM0_level2.evt modeM0/AS1C04_007T03_9000002436_16471cztM0_level2_quad_clean.evt
Size (bytes)5,751,3602,056,320
Size5.5 MB 2.0 MB
Events in quadrant A37,96812,015
Events in quadrant B40,81612,542
Events in quadrant C40,70111,669
Events in quadrant D45,24011,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01601
B01630
C01670
D01820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7900.000000%
B7900.000000%
C7900.000000%
D7922.531646%

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 80 80 0 0 0.00% 0.00%
B 80 80 0 0 0.00% 0.00%
C 80 80 0 0 0.00% 0.00%
D 80 80 3 3 3.75% 3.75%

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 15 174 146 35.87 9 9 3.8
A 12 194 74 17.02 9 9 3.8
A 3 137 74 17.02 9 9 3.8
B 4 48 647 172.71 10 9 3.7
B 0 214 541 144.02 10 9 3.7
B 3 209 285 74.71 10 9 3.7
C 14 238 1640 413.28 9 9 3.9
C 3 233 1246 313.44 9 9 3.9
C 7 247 95 21.79 9 9 3.9
D 2 120 8482 2172.67 9 8 3.9
D 8 195 1069 271.92 9 8 3.9
D 2 234 302 75.26 9 8 3.9

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