ASTROSAT CZTI

Data Quality Report

Orbit 39216

Creation date: 2024-06-27T22:01:52.887814
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/AS1A12_054T04_9000005446_39216cztM0_level2.fits modeM0/AS1A12_054T04_9000005446_39216cztM0_level2_quad_clean.evt
Size (bytes)538,842,24081,633,600
Size513.9 MB 77.9 MB
Events in quadrant A2,869,510661,445
Events in quadrant B2,730,090661,892
Events in quadrant C2,521,095614,460
Events in quadrant D11,425,606174,593

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114753
B0113112
C0103782
D0374802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5131240.467745%
B5131721.403235%
C513160.116936%
D5131397177.392321%

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 7254 5132 13 13 0.18% 0.25%
B 7254 5132 44 44 0.61% 0.86%
C 7254 5132 0 0 0.00% 0.00%
D 7254 5132 2898 2898 39.95% 56.47%

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 432875 3518.39 610 598 122.9
A 13 248 68564 553.19 610 598 122.9
A 15 174 8071 60.82 610 598 122.9
B 5 172 243444 2140.79 596 582 113.4
B 0 190 48857 425.54 596 582 113.4
B 0 221 39310 341.38 596 582 113.4
C 15 214 215805 1611.94 582 587 133.5
C 3 233 10380 73.34 582 587 133.5
C 0 10 8625 60.2 582 587 133.5
D 12 235 9563366 108610.82 355 344 88.0
D 2 249 217675 2468.31 355 344 88.0
D 2 250 78747 890.45 355 344 88.0

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