ASTROSAT CZTI

Data Quality Report

Orbit 07010

Creation date: 2024-06-27T15:14:26.220351
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/AS1G06_026T01_9000000962_07010cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07010cztM0_level2_quad_clean.evt
Size (bytes)325,958,40064,679,040
Size310.9 MB 61.7 MB
Events in quadrant A2,311,607407,764
Events in quadrant B2,417,743411,202
Events in quadrant C2,283,926400,804
Events in quadrant D2,515,533386,150

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104002
B0106341
C0103521
D0108971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5035721.429990%
B5035911.807349%
C5035260.516385%
D5035551.092354%

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 5265 5036 0 0 0.00% 0.00%
B 5265 5036 1 1 0.02% 0.02%
C 5265 5036 0 0 0.00% 0.00%
D 5265 5036 28 28 0.53% 0.56%

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 13 14 13491 106.08 593 578 121.7
A 4 2 12535 98.23 593 578 121.7
A 0 226 5709 42.15 593 578 121.7
B 4 239 43552 373.07 597 580 115.2
B 4 173 25772 218.71 597 580 115.2
B 0 214 21198 179.0 597 580 115.2
C 8 128 8047 55.25 579 580 135.1
C 1 16 7230 49.21 579 580 135.1
C 13 61 4597 29.73 579 580 135.1
D 8 195 127025 890.17 578 558 142.1
D 14 34 109963 770.08 578 558 142.1
D 2 14 32873 227.46 578 558 142.1

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