ASTROSAT CZTI

Data Quality Report

Orbit 44595

Creation date: 2024-06-27T23:04:19.075823
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_009T03_9000006006_44595cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44595cztM0_level2_quad_clean.evt
Size (bytes)629,475,840115,968,960
Size600.3 MB 110.6 MB
Events in quadrant A6,523,860795,805
Events in quadrant B5,441,582770,928
Events in quadrant C4,408,906755,164
Events in quadrant D6,355,493675,891

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249911
B0211720
C0183890
D0237280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73752012.725424%
B73766368.622560%
C73763004.067245%
D73766618.961497%

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 7375 7375 113 113 1.53% 1.53%
B 7376 7376 455 455 6.17% 6.17%
C 7376 7376 272 272 3.69% 3.69%
D 7376 7376 731 731 9.91% 9.91%

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 1825894 10405.19 843 826 175.4
A 15 223 1303319 7425.85 843 826 175.4
A 13 248 60529 340.38 843 826 175.4
B 14 167 1014280 6227.63 816 792 162.7
B 5 172 983599 6039.11 816 792 162.7
B 0 155 56407 341.74 816 792 162.7
C 12 2 1077687 5684.65 807 812 189.4
C 14 254 134991 708.31 807 812 189.4
C 2 14 14656 73.08 807 812 189.4
D 8 48 1874985 9181.98 805 781 204.1
D 13 249 662853 3243.58 805 781 204.1
D 1 52 340449 1664.08 805 781 204.1

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