ASTROSAT CZTI

Data Quality Report

Orbit 04548

Creation date: 2024-06-27T14:43:40.116871
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/AS1G05_233T10_9000000570_04548cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04548cztM0_level2_quad_clean.evt
Size (bytes)770,880,96083,165,760
Size735.2 MB 79.3 MB
Events in quadrant A9,036,010426,615
Events in quadrant B5,115,087527,816
Events in quadrant C4,004,800547,810
Events in quadrant D4,719,665530,168

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316442
B0198141
C0168161
D0190751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6962256436.828498%
B696276410.973858%
C69622183.131284%
D69623014.323470%

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 7272 6961 1388 1388 19.09% 19.94%
B 7272 6963 467 467 6.42% 6.71%
C 7272 6963 93 93 1.28% 1.34%
D 7272 6963 87 87 1.20% 1.25%

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 0 13 6349912 46220.67 666 648 137.4
A 8 15 36887 263.81 666 648 137.4
A 15 234 26475 188.01 666 648 137.4
B 10 16 1657593 11141.14 775 755 148.7
B 15 204 258360 1732.22 775 755 148.7
B 8 3 36307 239.06 775 755 148.7
C 14 48 865861 4816.51 771 770 179.6
C 9 247 125300 693.34 771 770 179.6
C 13 61 6465 31.71 771 770 179.6
D 13 106 1185911 6389.87 769 745 185.5
D 13 235 267389 1437.62 769 745 185.5
D 2 136 156728 840.99 769 745 185.5

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