ASTROSAT CZTI

Data Quality Report

Orbit 16097

Creation date: 2024-06-27T17:17:56.272229
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_110T01_9000002376_16097cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16097cztM0_level2_quad_clean.evt
Size (bytes)463,547,52078,036,480
Size442.1 MB 74.4 MB
Events in quadrant A2,825,640513,616
Events in quadrant B3,934,107498,643
Events in quadrant C2,840,498485,003
Events in quadrant D4,039,224455,212

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122432
B0155511
C0122311
D0160801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5877570.969883%
B58773035.155692%
C5877931.582440%
D58775048.575804%

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 7028 5878 0 0 0.00% 0.00%
B 7028 5878 147 147 2.09% 2.50%
C 7028 5878 0 0 0.00% 0.00%
D 7028 5878 410 410 5.83% 6.98%

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 12 96 34735 234.5 720 703 145.1
A 13 248 10815 69.68 720 703 145.1
A 15 174 7362 45.88 720 703 145.1
B 4 173 508716 3820.77 708 692 133.0
B 7 220 208043 1559.46 708 692 133.0
B 0 189 203709 1526.86 708 692 133.0
C 14 238 104810 641.28 690 694 162.4
C 3 233 36288 219.23 690 694 162.4
C 0 207 6636 36.6 690 694 162.4
D 7 38 1059966 6360.35 684 665 166.5
D 12 218 279151 1672.11 684 665 166.5
D 7 223 35563 209.54 684 665 166.5

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