ASTROSAT CZTI

Data Quality Report

Orbit 47434

Creation date: 2024-07-06T06:20:10.059967
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/AS1A13_053T01_9000006326_47434cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47434cztM0_level2_quad_clean.evt
Size (bytes)483,609,600110,099,520
Size461.2 MB 105.0 MB
Events in quadrant A6,904,048715,815
Events in quadrant B3,198,430758,864
Events in quadrant C3,785,111719,013
Events in quadrant D3,485,722665,696

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249632
B0143332
C0159902
D0153932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68073224.730425%
B6807721.057735%
C68071191.748200%
D6807771.131188%

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 7632 6809 116 116 1.52% 1.70%
B 7632 6809 31 31 0.41% 0.46%
C 7632 6809 104 104 1.36% 1.53%
D 7632 6809 43 43 0.56% 0.63%

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 3819286 25124.84 734 718 152.0
A 9 191 231904 1521.12 734 718 152.0
A 13 248 16205 101.9 734 718 152.0
B 5 32 138932 951.49 747 725 145.3
B 4 171 20719 137.65 747 725 145.3
B 0 198 20164 133.83 747 725 145.3
C 12 2 868884 5051.34 735 738 171.9
C 0 207 18794 105.06 735 738 171.9
C 12 250 13036 71.56 735 738 171.9
D 2 165 181982 986.97 733 709 183.7
D 2 249 172509 935.39 733 709 183.7
D 12 128 129720 702.42 733 709 183.7

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