ASTROSAT CZTI

Data Quality Report

Orbit 10371

Creation date: 2024-06-27T15:58:30.402511
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/AS1G07_048T01_9000001494_10371cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10371cztM0_level2_quad_clean.evt
Size (bytes)476,556,48096,439,680
Size454.5 MB 92.0 MB
Events in quadrant A3,226,323618,691
Events in quadrant B3,438,106616,193
Events in quadrant C3,133,949614,254
Events in quadrant D4,154,087579,361

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014864433
B015663643
C014866458
D017661571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01484
B01487
C01484
D01474

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7077450.635863%
B7044831.178308%
C7080340.480226%
D70702012.842999%

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 7640 7124 0 0 0.00% 0.00%
B 7640 7094 19 19 0.25% 0.27%
C 7640 7124 2 2 0.03% 0.03%
D 7640 7115 153 153 2.00% 2.15%

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 53616 314.74 817 799 167.8
A 13 251 23039 132.53 817 799 167.8
A 0 226 7569 40.34 817 799 167.8
B 4 239 155851 984.99 813 794 157.4
B 11 51 43637 272.16 813 794 157.4
B 0 214 36913 229.44 813 794 157.4
C 14 234 10574 52.73 800 806 185.3
C 13 61 6038 28.24 800 806 185.3
C 9 54 2421 8.72 800 806 185.3
D 1 52 660507 3436.09 790 769 192.0
D 1 20 118555 613.46 790 769 192.0
D 5 222 110874 573.46 790 769 192.0

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