ASTROSAT CZTI

Data Quality Report

Orbit 07980

Creation date: 2024-06-27T15:26:20.354308
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/AS1G06_077T01_9000001090_07980cztM0_level2.evt modeM0/AS1G06_077T01_9000001090_07980cztM0_level2_quad_clean.evt
Size (bytes)483,494,40087,785,280
Size461.1 MB 83.7 MB
Events in quadrant A3,493,367526,529
Events in quadrant B3,662,705543,944
Events in quadrant C3,452,067543,778
Events in quadrant D3,525,289522,683

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01522
B01524
C01522
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01563381
B01605466
C01552961
D01600173

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74822253.007217%
B74882363.151709%
C74901421.895861%
D74841842.458578%

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 7570 7516 1 1 0.01% 0.01%
B 7570 7516 8 8 0.11% 0.11%
C 7570 7515 0 0 0.00% 0.00%
D 7570 7512 22 22 0.29% 0.29%

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 15 239 68662 371.1 886 867 182.7
A 0 128 10953 55.21 886 867 182.7
A 0 226 8192 40.1 886 867 182.7
B 5 250 143318 815.01 890 864 174.8
B 11 51 31192 173.51 890 864 174.8
B 0 168 25936 143.44 890 864 174.8
C 1 16 36642 176.35 867 871 202.8
C 8 128 16490 77.0 867 871 202.8
C 8 112 6836 29.41 867 871 202.8
D 1 52 90339 384.13 858 839 233.0
D 2 152 86484 367.59 858 839 233.0
D 13 169 47947 202.19 858 839 233.0

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