ASTROSAT CZTI

Data Quality Report

Orbit 46968

Creation date: 2024-06-27T23:30:04.803302
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_071T07_9000006290_46968cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46968cztM0_level2_quad_clean.evt
Size (bytes)616,498,56090,043,200
Size587.9 MB 85.9 MB
Events in quadrant A5,821,356639,689
Events in quadrant B8,946,833499,153
Events in quadrant C2,601,017638,056
Events in quadrant D5,008,760549,405

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215201
B0305901
C0120581
D0188333

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57192454.283966%
B5719196234.306697%
C5720781.363636%
D571959110.333974%

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 6879 5721 40 40 0.58% 0.70%
B 6879 5721 1493 1493 21.70% 26.10%
C 6880 5722 22 22 0.32% 0.38%
D 6879 5721 471 471 6.85% 8.23%

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 3140057 23923.9 636 623 131.2
A 14 248 113417 859.54 636 623 131.2
A 0 243 45604 342.78 636 623 131.2
B 3 112 6341091 56250.53 584 567 112.7
B 5 172 73865 650.27 584 567 112.7
B 4 171 53304 467.86 584 567 112.7
C 0 207 88529 609.32 622 623 144.3
C 3 233 63506 435.87 622 623 144.3
C 14 254 11447 75.02 622 623 144.3
D 1 52 1674422 11086.87 602 584 151.0
D 13 249 375726 2484.8 602 584 151.0
D 11 224 369308 2442.29 602 584 151.0

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