ASTROSAT CZTI

Data Quality Report

Orbit 03076

Creation date: 2024-06-27T14:24:18.526671
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/AS1G05_238T03_9000000424_03076cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03076cztM0_level2_quad_clean.evt
Size (bytes)113,693,76024,099,840
Size108.4 MB 23.0 MB
Events in quadrant A641,086155,637
Events in quadrant B856,484153,174
Events in quadrant C711,867152,927
Events in quadrant D1,121,929149,099

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032211
B036791
C033471
D045071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160610.062267%
B160630.186800%
C160670.435866%
D1606472.926526%

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 1606 1606 0 0 0.00% 0.00%
B 1606 1606 0 0 0.00% 0.00%
C 1606 1606 4 4 0.25% 0.25%
D 1606 1606 63 63 3.92% 3.92%

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 8 15 8655 243.74 160 157 34.9
A 0 50 5368 149.46 160 157 34.9
A 12 189 2877 78.02 160 157 34.9
B 15 204 168573 5053.47 164 160 33.3
B 0 219 18662 555.18 164 160 33.3
B 2 249 14212 421.65 164 160 33.3
C 14 223 23120 577.11 160 160 39.8
C 1 16 19240 479.58 160 160 39.8
C 6 80 18019 448.89 160 160 39.8
D 13 114 352102 8683.81 158 153 40.5
D 10 213 65654 1616.14 158 153 40.5
D 2 136 37948 932.53 158 153 40.5

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