ASTROSAT CZTI

Data Quality Report

Orbit 04066

Creation date: 2024-06-27T14:36:56.476100
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/AS1G05_241T04_9000000518_04066cztM0_level2.evt modeM0/AS1G05_241T04_9000000518_04066cztM0_level2_quad_clean.evt
Size (bytes)478,503,36054,953,280
Size456.3 MB 52.4 MB
Events in quadrant A4,082,157313,657
Events in quadrant B3,387,822315,610
Events in quadrant C2,972,717307,945
Events in quadrant D3,628,728294,389

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162593
B0140862
C0128322
D0149802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61872233.604332%
B61871282.068854%
C6187520.840472%
D61871422.295135%

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 7452 6187 107 107 1.44% 1.73%
B 7452 6187 18 18 0.24% 0.29%
C 7452 6188 0 0 0.00% 0.00%
D 7452 6188 64 64 0.86% 1.03%

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 15 627459 3978.82 780 764 157.5
A 0 118 341765 2164.98 780 764 157.5
A 0 50 75690 475.7 780 764 157.5
B 4 81 153363 1020.86 794 779 149.5
B 14 167 55977 369.3 794 779 149.5
B 15 204 36010 235.71 794 779 149.5
C 9 144 10358 54.51 758 764 176.0
C 13 61 6343 31.7 758 764 176.0
C 12 4 2513 9.94 758 764 176.0
D 10 172 423699 2340.75 750 727 180.7
D 2 14 99911 548.89 750 727 180.7
D 2 232 93672 514.36 750 727 180.7

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