ASTROSAT CZTI

Data Quality Report

Orbit 46565

Creation date: 2024-06-27T23:24:50.952874
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/AS1C07_001T10_9000006232_46565cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46565cztM0_level2_quad_clean.evt
Size (bytes)116,602,56026,971,200
Size111.2 MB 25.7 MB
Events in quadrant A1,407,986171,091
Events in quadrant B834,942183,436
Events in quadrant C738,077180,290
Events in quadrant D1,204,204160,812

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051240
B036280
C034590
D047300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1652744.479419%
B1652402.421308%
C165280.484262%
D1652472.845036%

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 1652 1652 0 0 0.00% 0.00%
B 1652 1652 6 6 0.36% 0.36%
C 1652 1652 1 1 0.06% 0.06%
D 1652 1652 32 32 1.94% 1.94%

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 677555 16507.58 188 184 41.0
A 9 191 3470 80.08 188 184 41.0
A 13 254 2524 57.03 188 184 41.0
B 5 255 41765 1076.21 187 181 38.6
B 0 189 21465 550.84 187 181 38.6
B 2 2 13789 352.18 187 181 38.6
C 12 250 6148 137.2 182 182 43.5
C 14 254 5514 122.62 182 182 43.5
C 2 14 4822 106.71 182 182 43.5
D 13 249 168150 3597.05 180 173 46.7
D 1 52 163170 3490.41 180 173 46.7
D 8 176 96934 2072.04 180 173 46.7

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