ASTROSAT CZTI

Data Quality Report

Orbit 46002

Creation date: 2024-06-27T23:18:38.341996
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_012T08_9000006150_46002cztM0_level2.fits modeM0/AS1A13_012T08_9000006150_46002cztM0_level2_quad_clean.evt
Size (bytes)566,847,360119,520,000
Size540.6 MB 114.0 MB
Events in quadrant A6,200,470787,303
Events in quadrant B6,983,700795,442
Events in quadrant C3,492,003792,148
Events in quadrant D3,718,176715,567

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231380
B0262003
C0159610
D0166690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75931982.607665%
B75925266.928346%
C7593460.605821%
D75931271.672593%

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 7593 7593 0 0 0.00% 0.00%
B 7592 7592 184 184 2.42% 2.42%
C 7593 7593 8 8 0.11% 0.11%
D 7593 7593 101 101 1.33% 1.33%

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 2878468 16073.1 854 834 179.0
A 13 254 11248 58.17 854 834 179.0
A 2 79 10696 55.08 854 834 179.0
B 3 112 3545462 21337.23 838 810 166.1
B 5 255 58755 348.8 838 810 166.1
B 0 189 23426 136.14 838 810 166.1
C 14 254 120982 606.7 838 839 198.0
C 12 2 97148 486.35 838 839 198.0
C 12 249 6450 28.33 838 839 198.0
D 2 249 199979 958.04 834 809 207.9
D 0 240 131400 628.16 834 809 207.9
D 1 52 58677 278.35 834 809 207.9

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