ASTROSAT CZTI

Data Quality Report

Orbit 39024

Creation date: 2024-06-27T21:59:29.369829
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_001T02_9000005426_39024cztM0_level2.fits modeM0/AS1C07_001T02_9000005426_39024cztM0_level2_quad_clean.evt
Size (bytes)305,930,88093,349,440
Size291.8 MB 89.0 MB
Events in quadrant A2,892,901636,272
Events in quadrant B2,425,304644,422
Events in quadrant C2,552,438608,987
Events in quadrant D3,038,223564,332

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118702
B0108301
C0107431
D0125411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5332350.656414%
B533290.168792%
C533230.056264%
D5332781.462866%

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 7155 5332 26 26 0.36% 0.49%
B 7154 5331 5 5 0.07% 0.09%
C 7154 5331 0 0 0.00% 0.00%
D 7154 5331 79 79 1.10% 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 415150 3413.56 605 593 121.4
A 9 143 53876 438.75 605 593 121.4
A 6 10 44927 365.06 605 593 121.4
B 5 172 31381 268.99 597 580 114.5
B 15 85 28871 247.07 597 580 114.5
B 0 230 22137 188.26 597 580 114.5
C 15 214 226843 1665.91 587 590 135.8
C 1 128 21611 154.78 587 590 135.8
C 3 233 7500 50.88 587 590 135.8
D 12 227 297312 2094.8 589 572 141.7
D 13 171 169915 1195.45 589 572 141.7
D 12 235 91245 640.09 589 572 141.7

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