ASTROSAT CZTI

Data Quality Report

Orbit 38103

Creation date: 2024-06-27T21:48:25.598804
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/AS1A11_047T09_9000005362_38103cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38103cztM0_level2_quad_clean.evt
Size (bytes)333,440,64090,535,680
Size318.0 MB 86.3 MB
Events in quadrant A3,012,531611,063
Events in quadrant B2,566,440626,100
Events in quadrant C2,701,655589,009
Events in quadrant D3,649,586544,138

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121632
B0111721
C0112751
D0145691

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5299260.490659%
B5299240.452916%
C5299320.603888%
D5299971.830534%

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 7092 5300 18 18 0.25% 0.34%
B 7092 5300 12 12 0.17% 0.23%
C 7092 5300 31 31 0.44% 0.58%
D 7092 5300 88 88 1.24% 1.66%

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 10 83 321743 2615.43 606 594 122.8
A 12 16 258400 2099.56 606 594 122.8
A 12 194 42193 338.78 606 594 122.8
B 0 229 95436 805.48 599 582 117.8
B 15 85 32022 266.98 599 582 117.8
B 0 230 29267 243.59 599 582 117.8
C 15 214 219308 1591.98 586 590 137.4
C 1 23 142687 1034.28 586 590 137.4
C 14 254 26702 190.06 586 590 137.4
D 12 235 642318 4492.06 585 570 142.9
D 13 249 204359 1426.47 585 570 142.9
D 12 233 119734 834.11 585 570 142.9

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