ASTROSAT CZTI

Data Quality Report

Orbit 30356

Creation date: 2024-06-27T20:14:11.107824
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/AS1A10_053T15_9000004364_30356cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30356cztM0_level2_quad_clean.evt
Size (bytes)640,569,60097,398,720
Size610.9 MB 92.9 MB
Events in quadrant A3,362,173641,519
Events in quadrant B5,282,563644,908
Events in quadrant C6,556,417597,686
Events in quadrant D3,760,956613,450

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138412
B0196672
C0241862
D0151972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6480861.327160%
B64801362.098765%
C64805478.441358%
D64801291.990741%

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 7625 6480 2 2 0.03% 0.03%
B 7625 6480 1 1 0.01% 0.02%
C 7625 6480 138 138 1.81% 2.13%
D 7625 6481 50 50 0.66% 0.77%

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 8 192 26260 150.47 862 846 168.9
A 13 254 12363 68.19 862 846 168.9
A 3 137 8401 44.73 862 846 168.9
B 6 159 1927344 11937.42 854 833 161.4
B 12 111 19586 116.2 854 833 161.4
B 11 111 18064 106.77 854 833 161.4
C 3 233 3160838 16895.26 815 822 187.0
C 14 238 136449 725.14 815 822 187.0
C 4 224 32869 171.34 815 822 187.0
D 8 195 276165 1342.91 832 812 205.0
D 12 233 161599 784.17 832 812 205.0
D 2 250 145824 707.23 832 812 205.0

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