ASTROSAT CZTI

Data Quality Report

Orbit 45064

Creation date: 2024-06-27T23:09:31.714950
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_020T01_9000006040_45064cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45064cztM0_level2_quad_clean.evt
Size (bytes)1,045,445,760192,265,920
Size997.0 MB 183.4 MB
Events in quadrant A9,685,4751,313,772
Events in quadrant B6,472,8231,346,668
Events in quadrant C5,945,4751,296,646
Events in quadrant D15,642,1291,010,716

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385383
B0276913
C0265633
D0551473

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123412021.636820%
B123412441.977149%
C123411981.604408%
D12341210017.016449%

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 14167 12343 19 19 0.13% 0.15%
B 14167 12343 135 135 0.95% 1.09%
C 14167 12343 136 136 0.96% 1.10%
D 14167 12343 1705 1705 12.04% 13.81%

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 4285648 15119.73 1371 1341 283.4
A 13 248 59891 206.63 1371 1341 283.4
A 7 3 22819 75.8 1371 1341 283.4
B 5 255 496567 1828.04 1369 1323 270.9
B 4 171 192972 707.41 1369 1323 270.9
B 0 186 124612 455.08 1369 1323 270.9
C 14 254 550619 1703.78 1362 1369 322.4
C 1 3 45817 137.88 1362 1369 322.4
C 3 233 35095 104.62 1362 1369 322.4
D 13 174 3466244 10743.26 1277 1239 322.5
D 11 241 3382299 10482.99 1277 1239 322.5
D 13 187 988739 3061.75 1277 1239 322.5

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