ASTROSAT CZTI

Data Quality Report

Orbit 23869

Creation date: 2024-06-27T18:59:34.450443
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/AS1A07_001T01_9000003538_23869cztM0_level2.evt modeM0/AS1A07_001T01_9000003538_23869cztM0_level2_quad_clean.evt
Size (bytes)69,552,00020,534,400
Size66.3 MB 19.6 MB
Events in quadrant A547,477136,385
Events in quadrant B464,316144,104
Events in quadrant C449,310138,888
Events in quadrant D582,908133,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020970
B018350
C017880
D022444

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A866303.464203%
B86600.000000%
C86610.115473%
D865171.965318%

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 866 866 24 24 2.77% 2.77%
B 866 866 0 0 0.00% 0.00%
C 866 866 0 0 0.00% 0.00%
D 865 865 21 21 2.43% 2.43%

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 4 2 105202 4194.55 114 112 25.1
A 13 254 1496 55.24 114 112 25.1
A 2 250 1388 50.93 114 112 25.1
B 0 245 5748 236.51 116 114 23.8
B 15 32 2366 94.54 116 114 23.8
B 12 111 2269 90.46 116 114 23.8
C 14 238 18265 671.64 110 111 27.0
C 13 61 752 23.72 110 111 27.0
C 2 16 367 9.47 110 111 27.0
D 1 52 67979 2383.37 110 107 28.5
D 7 238 52977 1856.56 110 107 28.5
D 8 195 41300 1446.52 110 107 28.5

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