ASTROSAT CZTI

Data Quality Report

Orbit 46313

Creation date: 2024-06-27T23:21:35.014317
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_200T01_9000006196_46313cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46313cztM0_level2_quad_clean.evt
Size (bytes)479,531,520111,493,440
Size457.3 MB 106.3 MB
Events in quadrant A6,107,442738,993
Events in quadrant B4,302,368772,837
Events in quadrant C3,459,636733,178
Events in quadrant D3,370,191671,885

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220912
B0169682
C0148172
D0145662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65842303.493317%
B65842213.356622%
C65841372.080802%
D65841201.822600%

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 7704 6585 16 16 0.21% 0.24%
B 7704 6585 105 105 1.36% 1.59%
C 7704 6585 84 84 1.09% 1.28%
D 7704 6585 45 45 0.58% 0.68%

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 3102635 19701.86 766 751 157.4
A 13 248 16449 99.71 766 751 157.4
A 13 254 12090 72.02 766 751 157.4
B 4 171 506582 3362.47 764 740 150.4
B 0 190 175212 1159.76 764 740 150.4
B 3 112 171688 1136.34 764 740 150.4
C 12 2 287225 1622.96 755 760 176.5
C 1 3 188247 1062.2 755 760 176.5
C 11 16 32189 178.06 755 760 176.5
D 1 52 292537 1540.66 755 732 189.4
D 13 249 107455 563.47 755 732 189.4
D 13 171 29841 153.69 755 732 189.4

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