ASTROSAT CZTI

Data Quality Report

Orbit 13184

Creation date: 2024-06-27T16:37:26.278200
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/AS1T02_012T05_9000001954_13184cztM0_level2.evt modeM0/AS1T02_012T05_9000001954_13184cztM0_level2_quad_clean.evt
Size (bytes)63,518,40015,609,600
Size60.6 MB 14.9 MB
Events in quadrant A376,513106,151
Events in quadrant B542,335106,486
Events in quadrant C369,519106,775
Events in quadrant D585,32897,110

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015111
B020851
C014821
D022001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68610.145773%
B686527.580175%
C68610.145773%
D686517.434402%

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 687 687 0 0 0.00% 0.00%
B 687 687 27 27 3.93% 3.93%
C 687 687 0 0 0.00% 0.00%
D 687 687 35 35 5.09% 5.09%

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 1 162 3780 176.81 95 93 20.9
A 2 79 2010 91.93 95 93 20.9
A 1 178 1283 57.07 95 93 20.9
B 4 239 126024 6402.56 93 91 19.7
B 0 189 29764 1508.61 93 91 19.7
B 4 216 9567 481.77 93 91 19.7
C 13 61 670 24.26 94 94 23.7
C 14 234 473 15.97 94 94 23.7
C 7 159 242 6.23 94 94 23.7
D 13 122 157505 6581.78 91 88 23.9
D 12 222 37473 1563.11 91 88 23.9
D 1 52 17008 707.44 91 88 23.9

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