ASTROSAT CZTI

Data Quality Report

Orbit 47339

Creation date: 2024-06-29T23:38:40.695563
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_093T09_9000006320_47339cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47339cztM0_level2_quad_clean.evt
Size (bytes)906,269,760142,957,440
Size864.3 MB 136.3 MB
Events in quadrant A10,118,964979,247
Events in quadrant B4,910,2451,020,555
Events in quadrant C4,358,348982,363
Events in quadrant D13,442,604701,194

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0364542
B0208452
C0195452
D0463746

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A92865535.955201%
B92861571.690717%
C92861081.163041%
D9285256327.603662%

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 10611 9288 192 192 1.81% 2.07%
B 10611 9288 16 16 0.15% 0.17%
C 10611 9288 18 18 0.17% 0.19%
D 10610 9285 2204 2204 20.77% 23.74%

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 5068180 23385.39 1040 1018 216.7
A 9 191 436779 2011.07 1040 1018 216.7
A 2 79 288636 1327.38 1040 1018 216.7
B 14 167 390332 1874.99 1049 1017 207.6
B 4 171 74564 354.21 1049 1017 207.6
B 5 171 54827 259.16 1049 1017 207.6
C 3 233 159316 644.34 1038 1044 245.6
C 0 207 102299 412.22 1038 1044 245.6
C 1 3 17150 65.57 1038 1044 245.6
D 6 112 7225551 30093.7 936 905 240.1
D 12 2 2158980 8989.29 936 905 240.1
D 7 38 161648 669.56 936 905 240.1

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