ASTROSAT CZTI

Data Quality Report

Orbit 13506

Creation date: 2024-06-27T16:41:49.552817
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/AS1A04_103T01_9000001988_13506cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13506cztM0_level2_quad_clean.evt
Size (bytes)473,423,04086,402,880
Size451.5 MB 82.4 MB
Events in quadrant A3,194,159548,899
Events in quadrant B3,415,851555,961
Events in quadrant C3,300,261542,906
Events in quadrant D3,986,428515,851

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135925
B0142204
C0137674
D0162024

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01322
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6495841.293303%
B64951342.063125%
C6495580.892995%
D64951412.170901%

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 7572 6497 0 0 0.00% 0.00%
B 7572 6497 31 31 0.41% 0.48%
C 7572 6497 0 0 0.00% 0.00%
D 7572 6497 108 108 1.43% 1.66%

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 8 15 11020 61.49 825 810 166.0
A 1 162 8980 49.21 825 810 166.0
A 0 226 7256 38.82 825 810 166.0
B 3 64 179307 1146.84 820 799 155.7
B 12 111 18316 112.54 820 799 155.7
B 0 230 16657 101.88 820 799 155.7
C 3 233 164718 889.32 799 805 184.3
C 4 175 17809 92.26 799 805 184.3
C 13 61 5571 25.86 799 805 184.3
D 11 129 860484 4590.7 787 765 187.3
D 8 195 72191 381.4 787 765 187.3
D 2 136 27268 141.52 787 765 187.3

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