ASTROSAT CZTI

Data Quality Report

Orbit 06048

Creation date: 2024-06-27T15:02:06.792989
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/AS1A02_090T01_9000000778_06048cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06048cztM0_level2_quad_clean.evt
Size (bytes)2,144,681,280402,275,520
Size2.0 GB 383.6 MB
Events in quadrant A14,560,9842,558,866
Events in quadrant B19,145,9282,536,996
Events in quadrant C14,339,9372,552,241
Events in quadrant D14,840,8052,435,381

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0632696
B0767015
C0631085
D0655828

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06220
B06220
C06220
D06220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A305623491.141941%
B3056215695.133826%
C305623341.092860%
D305613491.141978%

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 38295 30564 2 2 0.01% 0.01%
B 38295 30564 918 918 2.40% 3.00%
C 38295 30564 26 26 0.07% 0.09%
D 38295 30563 38 38 0.10% 0.12%

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 252597 330.63 3681 3611 753.1
A 0 254 43124 52.47 3681 3611 753.1
A 0 50 39667 47.88 3681 3611 753.1
B 3 64 3786019 5419.98 3668 3586 697.9
B 15 204 471606 670.64 3668 3586 697.9
B 0 214 253635 358.3 3668 3586 697.9
C 9 54 115887 134.32 3601 3640 835.6
C 1 16 97639 112.49 3601 3640 835.6
C 8 79 34771 37.25 3601 3640 835.6
D 12 79 788605 891.42 3589 3482 880.8
D 8 195 177481 197.56 3589 3482 880.8
D 2 14 91327 99.74 3589 3482 880.8

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