ASTROSAT CZTI

Data Quality Report

Orbit 47711

Creation date: 2024-07-25T10:39:34.554918
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/AS1T05_213T01_9000006344_47711cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47711cztM0_level2_quad_clean.evt
Size (bytes)609,960,960123,315,840
Size581.7 MB 117.6 MB
Events in quadrant A7,943,659786,886
Events in quadrant B4,321,859825,253
Events in quadrant C3,739,383833,935
Events in quadrant D5,964,979740,849

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291581
B0181881
C0170411
D0232641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78615797.365475%
B78613514.465081%
C78611081.373871%
D78604035.127226%

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 7861 7861 7 7 0.09% 0.09%
B 7861 7861 6 6 0.08% 0.08%
C 7861 7861 15 15 0.19% 0.19%
D 7860 7860 80 80 1.02% 1.02%

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 4412306 23918.64 885 862 184.4
A 9 191 59893 320.06 885 862 184.4
A 13 248 49241 262.31 885 862 184.4
B 4 21 439940 2495.35 885 853 176.0
B 0 190 220668 1249.22 885 853 176.0
B 0 200 113591 640.69 885 853 176.0
C 12 2 261529 1261.99 881 880 206.5
C 14 254 44837 212.83 881 880 206.5
C 13 61 5776 23.7 881 880 206.5
D 2 165 2040023 9255.3 875 843 220.3
D 5 171 105346 474.31 875 843 220.3
D 4 221 87175 391.84 875 843 220.3

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