ASTROSAT CZTI

Data Quality Report

Orbit 16529

Creation date: 2024-06-27T17:24:00.453041
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/AS1T03_018T01_9000002442_16529cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16529cztM0_level2_quad_clean.evt
Size (bytes)480,306,24089,582,400
Size458.1 MB 85.4 MB
Events in quadrant A3,225,014576,599
Events in quadrant B3,549,112600,663
Events in quadrant C3,736,259570,753
Events in quadrant D3,617,194534,280

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133573
B0143622
C0151312
D0148442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6166280.454103%
B6166350.567629%
C6166610.989296%
D61661903.081414%

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 7512 6168 11 11 0.15% 0.18%
B 7511 6167 14 14 0.19% 0.23%
C 7512 6168 7 7 0.09% 0.11%
D 7512 6168 175 175 2.33% 2.84%

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 15 174 169136 1064.66 789 776 158.1
A 15 223 19703 119.69 789 776 158.1
A 15 239 8307 47.62 789 776 158.1
B 10 16 73130 481.91 799 781 150.1
B 15 35 68563 451.49 799 781 150.1
B 0 168 66691 439.02 799 781 150.1
C 3 233 654741 3695.59 759 767 177.0
C 14 238 117281 658.42 759 767 177.0
C 13 61 5375 26.04 759 767 177.0
D 1 52 654926 3272.71 739 725 199.9
D 7 38 49639 244.7 739 725 199.9
D 10 70 35397 173.45 739 725 199.9

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