ASTROSAT CZTI

Data Quality Report

Orbit 45029

Creation date: 2024-06-27T23:09:11.002010
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_020T01_9000006040_45029cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45029cztM0_level2_quad_clean.evt
Size (bytes)630,524,160110,134,080
Size601.3 MB 105.0 MB
Events in quadrant A5,779,941755,979
Events in quadrant B4,460,844764,697
Events in quadrant C3,407,430752,307
Events in quadrant D9,142,361567,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223650
B0181720
C0154040
D0321150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70922082.932882%
B70913434.837117%
C70911161.635876%
D7091158222.309970%

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 7092 7092 14 14 0.20% 0.20%
B 7091 7091 115 115 1.62% 1.62%
C 7091 7091 58 58 0.82% 0.82%
D 7091 7091 1256 1256 17.71% 17.71%

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 2461887 14375.42 810 792 171.2
A 13 248 101730 589.59 810 792 171.2
A 0 243 56450 325.1 810 792 171.2
B 5 255 314248 1995.98 803 778 157.1
B 4 171 240002 1523.23 803 778 157.1
B 0 189 139564 883.7 803 778 157.1
C 14 254 142605 761.88 788 794 186.1
C 1 3 136638 729.82 788 794 186.1
C 12 2 21881 113.29 788 794 186.1
D 13 174 3457486 18362.88 735 711 188.2
D 5 235 1036087 5500.06 735 711 188.2
D 11 241 448899 2380.84 735 711 188.2

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