ASTROSAT CZTI

Data Quality Report

Orbit 47489

Creation date: 2024-07-09T23:03:11.888354
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_089T01_9000006330_47489cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47489cztM0_level2_quad_clean.evt
Size (bytes)489,695,040103,443,840
Size467.0 MB 98.7 MB
Events in quadrant A6,569,247693,860
Events in quadrant B3,382,335728,805
Events in quadrant C2,858,418696,205
Events in quadrant D4,848,748591,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236151
B0141571
C0126591
D0184381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60372313.826404%
B60381081.788672%
C6038390.645909%
D60385829.638953%

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 7277 6038 68 68 0.93% 1.13%
B 7278 6039 38 38 0.52% 0.63%
C 7278 6039 10 10 0.14% 0.17%
D 7278 6039 397 397 5.45% 6.57%

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 3770360 25931.44 697 681 145.4
A 9 191 50382 341.89 697 681 145.4
A 15 235 47769 323.92 697 681 145.4
B 0 200 232603 1709.52 703 682 135.7
B 5 32 144470 1059.88 703 682 135.7
B 0 190 67079 489.42 703 682 135.7
C 12 2 66132 397.67 695 697 164.5
C 0 207 40775 243.57 695 697 164.5
C 3 233 17292 100.85 695 697 164.5
D 2 165 1132060 6715.47 668 649 168.5
D 7 38 579767 3437.35 668 649 168.5
D 12 33 218849 1295.12 668 649 168.5

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