ASTROSAT CZTI

Data Quality Report

Orbit 34078

Creation date: 2024-06-27T20:56:16.075660
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_001T04_9000004868_34078cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34078cztM0_level2_quad_clean.evt
Size (bytes)595,408,32079,594,560
Size567.8 MB 75.9 MB
Events in quadrant A2,451,249534,767
Events in quadrant B6,236,293503,028
Events in quadrant C3,351,050514,430
Events in quadrant D5,629,281480,714

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108253
B0221582
C0132662
D0204542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A538390.167193%
B5383118121.939439%
C5383761.411852%
D53834939.158462%

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 7115 5383 0 0 0.00% 0.00%
B 7114 5383 1026 1026 14.42% 19.06%
C 7114 5383 71 71 1.00% 1.32%
D 7115 5384 505 505 7.10% 9.38%

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 15 169 38475 309.05 617 606 122.5
A 10 83 19115 151.05 617 606 122.5
A 13 254 10068 77.22 617 606 122.5
B 5 31 1923786 17646.03 567 553 109.0
B 5 172 1115108 10226.25 567 553 109.0
B 5 15 668085 6124.73 567 553 109.0
C 0 10 523503 3842.69 591 595 136.1
C 15 214 234608 1719.69 591 595 136.1
C 3 233 189847 1390.75 591 595 136.1
D 8 195 1529669 10750.94 582 565 142.2
D 1 52 1292457 9083.13 582 565 142.2
D 2 250 243715 1709.56 582 565 142.2

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