ASTROSAT CZTI

Data Quality Report

Orbit 45598

Creation date: 2024-06-27T23:14:03.153337
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_082T02_9000006112_45598cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45598cztM0_level2_quad_clean.evt
Size (bytes)791,735,040182,692,800
Size755.1 MB 174.2 MB
Events in quadrant A9,208,3801,206,571
Events in quadrant B6,154,8691,235,582
Events in quadrant C5,352,4221,215,106
Events in quadrant D7,699,1421,076,445

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0353621
B0265812
C0245061
D0310641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02320
B02320
C02320
D02320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115291861.613323%
B115294463.868506%
C115291050.910747%
D115294283.712377%

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 11834 11530 0 0 0.00% 0.00%
B 11834 11529 265 265 2.24% 2.30%
C 11834 11530 48 48 0.41% 0.42%
D 11834 11530 267 267 2.26% 2.32%

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 4261387 16027.46 1273 1243 265.8
A 0 243 20920 74.03 1273 1243 265.8
A 3 137 14986 51.7 1273 1243 265.8
B 15 201 606917 2448.55 1256 1214 247.4
B 5 172 455837 1837.81 1256 1214 247.4
B 3 112 57571 227.82 1256 1214 247.4
C 14 254 402404 1359.58 1263 1268 295.0
C 3 233 15153 47.06 1263 1268 295.0
C 13 61 8599 24.85 1263 1268 295.0
D 1 52 1485821 4728.71 1242 1199 314.0
D 2 249 523938 1664.99 1242 1199 314.0
D 13 249 338047 1072.9 1242 1199 314.0

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