ASTROSAT CZTI

Data Quality Report

Orbit 09822

Creation date: 2024-06-27T15:51:01.674798
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_020T01_9000001398_09822cztM0_level2.evt modeM0/AS1G07_020T01_9000001398_09822cztM0_level2_quad_clean.evt
Size (bytes)662,572,80092,983,680
Size631.9 MB 88.7 MB
Events in quadrant A3,969,913576,127
Events in quadrant B4,910,214549,042
Events in quadrant C3,894,593576,367
Events in quadrant D6,710,615518,782

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018371685
B0225162371
C018268687
D0276101828

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01848
C01848
D01846

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8631580.671996%
B84712072.443631%
C8631300.347584%
D84942532.978573%

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 10631 8899 0 0 0.00% 0.00%
B 10631 8761 44 44 0.41% 0.50%
C 10631 8903 1 1 0.01% 0.01%
D 10631 8816 177 177 1.66% 2.01%

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 0 226 9470 40.33 1025 1003 210.0
A 15 174 8510 35.76 1025 1003 210.0
A 12 194 8452 35.48 1025 1003 210.0
B 4 173 518971 2685.31 1004 979 192.9
B 4 239 162951 839.68 1004 979 192.9
B 0 85 134633 692.87 1004 979 192.9
C 14 234 10180 39.54 994 998 232.2
C 13 61 7541 28.18 994 998 232.2
C 12 4 3629 11.33 994 998 232.2
D 5 113 2043727 8774.31 959 934 232.8
D 1 52 388569 1664.99 959 934 232.8
D 2 152 282221 1208.2 959 934 232.8

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