ASTROSAT CZTI

Data Quality Report

Orbit 48098

Creation date: 2024-08-21T08:44:22.345501
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_071T07_9000006398_48098cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48098cztM0_level2_quad_clean.evt
Size (bytes)102,352,32021,769,920
Size97.6 MB 20.8 MB
Events in quadrant A1,963,560185,064
Events in quadrant B292,7391,641
Events in quadrant C665,998182,881
Events in quadrant D735,020168,669

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069890
B017890
C032670
D033530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1630513.128834%
B1631163099.938688%
C163100.000000%
D163120.122624%

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 1630 1630 39 39 2.39% 2.39%
B 1630 1630 1 1 0.06% 0.06%
C 1631 1631 0 0 0.00% 0.00%
D 1631 1631 2 2 0.12% 0.12%

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 1153082 29683.03 177 173 38.8
A 15 235 86164 2213.94 177 173 38.8
A 14 248 25980 664.43 177 173 38.8
B 2 177 225038 55962.77 11 10 4.0
B 4 21 10983 2728.9 11 10 4.0
B 5 255 5769 1432.22 11 10 4.0
C 12 250 2996 69.33 169 169 40.8
C 14 67 1515 33.01 169 169 40.8
C 14 254 1393 30.02 169 169 40.8
D 2 165 12468 274.12 170 164 44.9
D 7 55 11029 242.06 170 164 44.9
D 2 233 10298 225.78 170 164 44.9

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