ASTROSAT CZTI

Data Quality Report

Orbit 11583

Creation date: 2024-06-27T16:15:29.972119
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_031T01_9000001702_11583cztM0_level2.evt modeM0/AS1G08_031T01_9000001702_11583cztM0_level2_quad_clean.evt
Size (bytes)542,885,76050,215,680
Size517.7 MB 47.9 MB
Events in quadrant A3,932,645311,848
Events in quadrant B3,524,243305,294
Events in quadrant C2,238,486313,622
Events in quadrant D6,422,124252,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150352
B0134791
C099491
D0223881

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47873707.729267%
B47873767.854606%
C4787280.584917%
D4787131927.553792%

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 5088 4790 156 156 3.07% 3.26%
B 5088 4790 207 207 4.07% 4.32%
C 5088 4790 0 0 0.00% 0.00%
D 5088 4790 1059 1059 20.81% 22.11%

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 8 5 1405815 11626.78 582 568 120.9
A 1 162 88554 727.98 582 568 120.9
A 1 178 49572 405.45 582 568 120.9
B 4 239 722987 6300.08 584 568 114.7
B 3 64 379457 3304.22 584 568 114.7
B 11 51 76748 664.35 584 568 114.7
C 13 61 4125 26.37 573 576 134.6
C 12 4 1650 7.98 573 576 134.6
C 3 202 1382 5.99 573 576 134.6
D 1 52 4119702 33734.58 504 489 122.1
D 2 120 143914 1174.59 504 489 122.1
D 7 71 132137 1078.14 504 489 122.1

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