ASTROSAT CZTI

Data Quality Report

Orbit 09189

Creation date: 2024-06-27T15:42:29.315691
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/AS1C02_041T02_9000001282_09189cztM0_level2.evt modeM0/AS1C02_041T02_9000001282_09189cztM0_level2_quad_clean.evt
Size (bytes)449,547,84087,534,720
Size428.7 MB 83.5 MB
Events in quadrant A3,967,688557,525
Events in quadrant B3,188,499575,451
Events in quadrant C2,863,835556,271
Events in quadrant D3,174,549529,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160212
B0134391
C0126211
D0137291

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6190951.534733%
B6190250.403877%
C619070.113086%
D6190470.759289%

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 7479 6189 29 29 0.39% 0.47%
B 7479 6189 0 0 0.00% 0.00%
C 7479 6189 0 0 0.00% 0.00%
D 7479 6189 34 34 0.45% 0.55%

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 8 5 799523 5248.07 749 734 152.2
A 1 162 101843 664.29 749 734 152.2
A 15 174 63126 409.92 749 734 152.2
B 8 234 56080 379.51 764 748 145.8
B 10 16 37376 251.22 764 748 145.8
B 0 246 26685 177.9 764 748 145.8
C 8 128 10237 56.06 728 733 169.5
C 8 222 7931 42.46 728 733 169.5
C 8 112 5867 30.28 728 733 169.5
D 1 52 203276 1151.7 718 695 175.9
D 9 64 67076 377.38 718 695 175.9
D 2 14 45748 256.13 718 695 175.9

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