ASTROSAT CZTI

Data Quality Report

Orbit 47843

Creation date: 2024-08-02T20:45:36.272317
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/AS1T05_216T01_9000006356_47843cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47843cztM0_level2_quad_clean.evt
Size (bytes)785,174,400107,210,880
Size748.8 MB 102.2 MB
Events in quadrant A7,660,197791,013
Events in quadrant B3,708,775800,672
Events in quadrant C3,578,031776,788
Events in quadrant D13,542,438360,113

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284750
B0161870
C0162220
D0453550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74241642.209052%
B7425811.090909%
C7425730.983165%
D7425421056.700337%

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 7424 7424 13 13 0.18% 0.18%
B 7425 7425 35 35 0.47% 0.47%
C 7425 7425 64 64 0.86% 0.86%
D 7424 7424 3596 3596 48.44% 48.44%

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 4269449 24950.77 825 806 171.1
A 14 235 145900 848.09 825 806 171.1
A 13 248 22856 128.89 825 806 171.1
B 4 21 137473 847.33 816 792 161.3
B 4 171 135481 834.98 816 792 161.3
B 0 200 90484 556.03 816 792 161.3
C 12 2 241439 1257.96 807 814 191.3
C 14 254 83798 433.83 807 814 191.3
C 12 249 44465 228.2 807 814 191.3
D 2 165 8469372 52038.35 638 617 162.7
D 12 2 1636241 10050.49 638 617 162.7
D 2 37 713558 4380.84 638 617 162.7

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