ASTROSAT CZTI

Data Quality Report

Orbit 42561

Creation date: 2024-06-27T22:41:38.595982
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_001T10_9000005814_42561cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42561cztM0_level2_quad_clean.evt
Size (bytes)296,936,64087,310,080
Size283.2 MB 83.3 MB
Events in quadrant A2,785,148597,751
Events in quadrant B2,305,999606,769
Events in quadrant C2,316,243572,778
Events in quadrant D3,198,530519,965

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111452
B0102472
C099612
D0130492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4945100.202224%
B4945280.566229%
C494550.101112%
D49451643.316481%

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 7037 4946 6 6 0.09% 0.12%
B 7037 4946 11 11 0.16% 0.22%
C 7037 4946 1 1 0.01% 0.02%
D 7037 4946 141 141 2.00% 2.85%

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 533979 4693.29 560 548 113.7
A 2 79 43035 373.81 560 548 113.7
A 15 223 30415 262.78 560 548 113.7
B 14 252 58615 555.31 552 537 104.6
B 5 172 29586 277.75 552 537 104.6
B 15 32 21372 199.21 552 537 104.6
C 15 214 207870 1678.68 535 540 123.5
C 12 249 8865 67.4 535 540 123.5
C 14 254 8000 60.4 535 540 123.5
D 12 233 515254 3981.19 533 517 129.3
D 1 52 261537 2018.84 533 517 129.3
D 1 47 95806 737.01 533 517 129.3

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