ASTROSAT CZTI

Data Quality Report

Orbit 05009

Creation date: 2024-06-27T14:50:06.565852
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/AS1T01_132T01_9000000636_05009cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05009cztM0_level2_quad_clean.evt
Size (bytes)505,177,92059,731,200
Size481.8 MB 57.0 MB
Events in quadrant A3,101,486345,389
Events in quadrant B4,123,723345,643
Events in quadrant C3,091,498340,723
Events in quadrant D4,545,352326,849

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133112
B0164321
C0133281
D0178071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64481372.124690%
B64481692.620968%
C64481021.581886%
D64482874.450993%

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 7643 6449 0 0 0.00% 0.00%
B 7643 6449 14 14 0.18% 0.22%
C 7643 6449 0 0 0.00% 0.00%
D 7643 6449 152 152 1.99% 2.36%

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 50 25728 155.24 793 774 160.7
A 8 15 17535 104.27 793 774 160.7
A 0 226 7929 44.51 793 774 160.7
B 8 3 495214 3340.91 789 772 148.0
B 15 204 373694 2519.81 789 772 148.0
B 0 219 80811 540.81 789 772 148.0
C 1 16 91461 512.38 766 768 177.0
C 14 67 8808 45.42 766 768 177.0
C 13 61 6212 30.76 766 768 177.0
D 12 227 697401 3776.47 764 738 184.5
D 2 33 261829 1415.32 764 738 184.5
D 13 235 218149 1178.54 764 738 184.5

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