ASTROSAT CZTI

Data Quality Report

Orbit 46667

Creation date: 2024-06-27T23:26:14.001992
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/AS1A13_092T18_9000006248_46667cztM0_level2.fits modeM0/AS1A13_092T18_9000006248_46667cztM0_level2_quad_clean.evt
Size (bytes)589,178,880126,164,160
Size561.9 MB 120.3 MB
Events in quadrant A7,542,484812,480
Events in quadrant B4,572,413848,503
Events in quadrant C3,688,082839,964
Events in quadrant D5,371,790750,403

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277773
B0192911
C0171981
D0217891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81844115.021994%
B81843634.435484%
C81841141.392962%
D81853554.337202%

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 8639 8185 5 5 0.06% 0.06%
B 8639 8185 43 43 0.50% 0.53%
C 8639 8185 19 19 0.22% 0.23%
D 8640 8186 231 231 2.67% 2.82%

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 10 83 3920120 20710.85 905 882 189.2
A 15 235 75340 393.47 905 882 189.2
A 13 6 13087 64.5 905 882 189.2
B 0 189 301033 1664.99 905 874 180.3
B 4 171 171314 945.44 905 874 180.3
B 15 201 155923 860.06 905 874 180.3
C 12 2 76999 357.83 900 903 212.7
C 15 208 29380 133.91 900 903 212.7
C 11 16 20196 90.72 900 903 212.7
D 12 1 621398 2798.29 888 857 221.8
D 1 52 460810 2074.13 888 857 221.8
D 12 128 251916 1132.13 888 857 221.8

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