ASTROSAT CZTI

Data Quality Report

Orbit 09113

Creation date: 2024-06-27T15:41:27.417145
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/AS1A03_105T01_9000001268_09113cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09113cztM0_level2_quad_clean.evt
Size (bytes)438,094,08095,232,960
Size417.8 MB 90.8 MB
Events in quadrant A3,441,096610,145
Events in quadrant B3,232,472615,063
Events in quadrant C3,033,340605,961
Events in quadrant D3,108,501589,230

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014652100
B01408096
C01366099
D014035102

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6648250.376053%
B6648490.737064%
C6646220.331026%
D6646410.616912%

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 7630 6694 2 2 0.03% 0.03%
B 7630 6694 8 8 0.10% 0.12%
C 7630 6691 0 0 0.00% 0.00%
D 7630 6695 13 13 0.17% 0.19%

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 5 293053 1802.66 795 778 162.1
A 1 162 51978 315.79 795 778 162.1
A 15 174 18014 106.31 795 778 162.1
B 0 214 115911 751.69 796 776 153.2
B 12 111 17604 109.87 796 776 153.2
B 11 111 14076 86.83 796 776 153.2
C 13 61 5813 27.77 776 780 181.2
C 14 67 3497 14.99 776 780 181.2
C 1 3 2321 8.5 776 780 181.2
D 1 52 103541 516.86 768 746 198.9
D 2 14 36263 178.58 768 746 198.9
D 2 234 21074 102.21 768 746 198.9

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