ASTROSAT CZTI

Data Quality Report

Orbit 18349

Creation date: 2024-06-27T17:48:40.909942
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/AS1A06_006T01_9000002720_18349cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18349cztM0_level2_quad_clean.evt
Size (bytes)452,214,72089,035,200
Size431.3 MB 84.9 MB
Events in quadrant A3,099,707565,877
Events in quadrant B3,331,721573,419
Events in quadrant C3,272,841555,285
Events in quadrant D3,540,407539,298

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134932
B0140802
C0139682
D0150132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6633220.331675%
B6633440.663350%
C6633610.919644%
D6633330.497512%

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 7688 6634 0 0 0.00% 0.00%
B 7688 6634 6 6 0.08% 0.09%
C 7688 6634 12 12 0.16% 0.18%
D 7688 6634 23 23 0.30% 0.35%

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 0 226 6881 37.51 803 785 162.5
A 12 194 5815 30.95 803 785 162.5
A 3 137 5772 30.69 803 785 162.5
B 7 220 41690 263.06 812 793 155.5
B 4 48 32561 204.34 812 793 155.5
B 0 197 22815 141.65 812 793 155.5
C 0 207 138906 763.25 772 777 181.0
C 14 238 118989 653.19 772 777 181.0
C 3 233 5525 26.24 772 777 181.0
D 7 238 143560 747.06 778 757 191.2
D 11 176 119993 623.77 778 757 191.2
D 2 33 77016 398.94 778 757 191.2

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