ASTROSAT CZTI

Data Quality Report

Orbit 47143

Creation date: 2024-06-27T23:32:12.859088
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/AS1C09_003T01_9000006298_47143cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47143cztM0_level2_quad_clean.evt
Size (bytes)457,977,600102,530,880
Size436.8 MB 97.8 MB
Events in quadrant A6,643,087679,690
Events in quadrant B2,990,509710,421
Events in quadrant C3,576,071664,276
Events in quadrant D3,254,766610,674

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243492
B0132652
C0152792
D0144192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62942313.670162%
B6294861.366381%
C6295861.366164%
D62951322.096902%

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 7344 6295 45 45 0.61% 0.71%
B 7344 6296 7 7 0.10% 0.11%
C 7345 6297 50 50 0.68% 0.79%
D 7345 6297 85 85 1.16% 1.35%

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 3559193 24988.35 690 677 142.4
A 15 235 209360 1465.4 690 677 142.4
A 15 14 99313 692.63 690 677 142.4
B 4 171 56417 417.31 690 670 133.6
B 5 255 48956 361.46 690 670 133.6
B 0 200 40162 295.63 690 670 133.6
C 15 208 878902 5649.81 667 668 155.4
C 14 254 69575 443.29 667 668 155.4
C 6 247 9009 53.66 667 668 155.4
D 12 233 305016 1806.43 671 647 168.5
D 2 120 116725 688.92 671 647 168.5
D 1 47 96192 567.06 671 647 168.5

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