ASTROSAT CZTI

Data Quality Report

Orbit 47398

Creation date: 2024-07-03T21:01:20.101961
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_093T25_9000006324_47398cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47398cztM0_level2_quad_clean.evt
Size (bytes)483,405,120110,197,440
Size461.0 MB 105.1 MB
Events in quadrant A7,374,607721,831
Events in quadrant B3,255,869757,864
Events in quadrant C3,126,911721,690
Events in quadrant D3,612,502664,156

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268342
B0142202
C0141132
D0155172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67563505.180580%
B6756971.435761%
C6756400.592066%
D67561351.998224%

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 7681 6756 93 93 1.21% 1.38%
B 7681 6756 16 16 0.21% 0.24%
C 7681 6756 11 11 0.14% 0.16%
D 7681 6756 100 100 1.30% 1.48%

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 3853398 23778.33 773 758 162.0
A 9 191 285945 1760.16 773 758 162.0
A 14 248 168798 1037.14 773 758 162.0
B 5 172 24452 151.85 775 752 156.1
B 12 48 23656 146.75 775 752 156.1
B 5 32 23031 142.74 775 752 156.1
C 0 207 57737 315.6 763 768 180.5
C 12 2 33267 180.04 763 768 180.5
C 3 233 22619 121.05 763 768 180.5
D 2 249 488981 2520.43 766 742 193.7
D 13 171 37605 190.3 766 742 193.7
D 2 234 31744 160.04 766 742 193.7

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