ASTROSAT CZTI

Data Quality Report

Orbit 44947

Creation date: 2024-06-27T23:08:17.137115
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_017T02_9000006032_44947cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44947cztM0_level2_quad_clean.evt
Size (bytes)991,330,560197,588,160
Size945.4 MB 188.4 MB
Events in quadrant A9,803,5331,342,496
Events in quadrant B7,586,9381,365,048
Events in quadrant C5,771,4341,361,707
Events in quadrant D12,540,9071,026,151

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0393783
B0313403
C0266173
D0461943

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128293002.338452%
B128295904.598955%
C12830950.740452%
D12830220517.186282%

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 14659 12832 4 4 0.03% 0.03%
B 14659 12832 286 286 1.95% 2.23%
C 14660 12833 11 11 0.08% 0.09%
D 14660 12833 1718 1718 11.72% 13.39%

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 4158714 13737.32 1446 1414 302.6
A 3 137 16726 50.6 1446 1414 302.6
A 13 254 14045 41.74 1446 1414 302.6
B 0 190 701079 2450.94 1436 1392 285.5
B 5 172 460343 1607.66 1436 1392 285.5
B 4 171 173170 601.72 1436 1392 285.5
C 3 233 57769 167.79 1430 1438 335.7
C 1 3 57626 167.37 1430 1438 335.7
C 1 241 50370 145.75 1430 1438 335.7
D 1 52 2951879 9006.69 1298 1259 327.6
D 13 249 1217667 3713.05 1298 1259 327.6
D 12 233 1044436 3184.27 1298 1259 327.6

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