ASTROSAT CZTI

Data Quality Report

Orbit 45928

Creation date: 2024-06-27T23:17:49.532528
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/AS1A13_071T03_9000006142_45928cztM0_level2.fits modeM0/AS1A13_071T03_9000006142_45928cztM0_level2_quad_clean.evt
Size (bytes)551,882,880110,203,200
Size526.3 MB 105.1 MB
Events in quadrant A5,873,311733,284
Events in quadrant B6,233,618722,783
Events in quadrant C3,355,926731,395
Events in quadrant D4,419,801658,230

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218310
B0233050
C0153090
D0178590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7050450.638298%
B70515487.771947%
C7051640.907673%
D70511712.425188%

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 7050 7050 5 5 0.07% 0.07%
B 7051 7051 364 364 5.16% 5.16%
C 7051 7051 53 53 0.75% 0.75%
D 7051 7051 152 152 2.16% 2.16%

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 2836288 17395.66 773 753 163.0
A 10 255 18728 110.27 773 753 163.0
A 0 247 12624 72.83 773 753 163.0
B 3 112 2695650 18013.6 755 732 149.6
B 10 246 293508 1957.0 755 732 149.6
B 12 3 83597 553.89 755 732 149.6
C 14 254 255882 1432.98 760 762 178.0
C 12 250 71799 399.01 760 762 178.0
C 12 249 34692 190.58 760 762 178.0
D 2 37 443060 2344.52 759 735 188.7
D 11 241 441355 2335.49 759 735 188.7
D 1 52 238919 1262.48 759 735 188.7

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