ASTROSAT CZTI

Data Quality Report

Orbit 46574

Creation date: 2024-06-27T23:24:56.120047
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/AS1C07_001T10_9000006232_46574cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46574cztM0_level2_quad_clean.evt
Size (bytes)536,535,360106,539,840
Size511.7 MB 101.6 MB
Events in quadrant A6,064,883700,265
Events in quadrant B3,350,514749,019
Events in quadrant C3,003,664736,243
Events in quadrant D6,939,062587,938

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223032
B0145352
C0137642
D0252142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64862203.391921%
B6485500.771010%
C6485470.724749%
D648593014.340786%

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 7625 6485 91 91 1.19% 1.40%
B 7624 6484 13 13 0.17% 0.20%
C 7624 6484 27 27 0.35% 0.42%
D 7624 6484 995 995 13.05% 15.35%

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 3256282 22570.47 700 685 144.2
A 0 243 45737 312.34 700 685 144.2
A 0 227 14479 95.63 700 685 144.2
B 2 2 274199 1985.1 711 689 137.8
B 3 112 102212 736.84 711 689 137.8
B 0 245 60307 432.7 711 689 137.8
C 3 233 130062 790.86 708 712 163.6
C 12 2 59340 358.46 708 712 163.6
C 12 250 34147 204.43 708 712 163.6
D 13 138 2251774 13661.71 665 646 164.8
D 1 52 1171496 7105.69 665 646 164.8
D 2 120 341489 2068.52 665 646 164.8

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