ASTROSAT CZTI

Data Quality Report

Orbit 09160

Creation date: 2024-06-27T15:42:06.260235
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/AS1C02_042T01_9000001278_09160cztM0_level2.evt modeM0/AS1C02_042T01_9000001278_09160cztM0_level2_quad_clean.evt
Size (bytes)416,649,60096,347,520
Size397.3 MB 91.9 MB
Events in quadrant A3,433,863618,968
Events in quadrant B3,051,336640,481
Events in quadrant C2,771,228634,428
Events in quadrant D2,949,097600,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014277138
B013363147
C01255087
D01330794

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01242
B01240
C01244
D01244

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071510.840059%
B6065490.807914%
C6086140.230036%
D6084300.493097%

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 7403 6128 21 21 0.28% 0.34%
B 7403 6126 12 12 0.16% 0.20%
C 7403 6128 0 0 0.00% 0.00%
D 7403 6129 25 25 0.34% 0.41%

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 541511 3765.86 713 700 143.6
A 1 162 71708 494.45 713 700 143.6
A 13 251 26103 176.89 713 700 143.6
B 8 234 86586 640.8 727 710 134.0
B 0 85 67155 495.81 727 710 134.0
B 0 219 21435 154.65 727 710 134.0
C 13 61 5281 28.02 709 714 163.0
C 12 4 4384 22.52 709 714 163.0
C 8 222 3478 16.96 709 714 163.0
D 1 52 108371 593.66 691 675 181.4
D 7 71 67392 367.77 691 675 181.4
D 2 14 57702 314.35 691 675 181.4

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