ASTROSAT CZTI

Data Quality Report

Orbit 26617

Creation date: 2024-06-27T19:31:02.592129
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/AS1A09_145T01_9000003848_26617cztM0_level2.evt modeM0/AS1A09_145T01_9000003848_26617cztM0_level2_quad_clean.evt
Size (bytes)584,380,80083,004,480
Size557.3 MB 79.2 MB
Events in quadrant A3,008,626559,997
Events in quadrant B3,544,765562,688
Events in quadrant C2,863,923536,855
Events in quadrant D7,909,400470,044

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121260
B0143570
C0116850
D0273560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5482340.620212%
B5482891.623495%
C5483500.911910%
D5483186634.032464%

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 6692 5483 0 0 0.00% 0.00%
B 6692 5483 13 13 0.19% 0.24%
C 6693 5484 0 0 0.00% 0.00%
D 6693 5484 1694 1694 25.31% 30.89%

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 13 143533 958.1 739 728 149.0
A 5 168 17266 110.96 739 728 149.0
A 13 254 9019 55.63 739 728 149.0
B 0 189 657338 4828.39 722 708 136.0
B 5 172 18049 127.51 722 708 136.0
B 12 111 15874 111.52 722 708 136.0
C 14 238 114142 699.88 695 702 162.1
C 3 233 21646 129.22 695 702 162.1
C 15 208 15049 88.52 695 702 162.1
D 1 52 3716170 25570.04 591 575 145.3
D 7 80 1680188 11558.78 591 575 145.3
D 2 250 217700 1494.21 591 575 145.3

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