ASTROSAT CZTI

Data Quality Report

Orbit 08269

Creation date: 2024-06-27T15:30:24.283494
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/AS1G07_065T02_9000001150_08269cztM0_level2.evt modeM0/AS1G07_065T02_9000001150_08269cztM0_level2_quad_clean.evt
Size (bytes)263,459,52045,040,320
Size251.3 MB 43.0 MB
Events in quadrant A1,833,375272,243
Events in quadrant B2,011,455276,835
Events in quadrant C1,789,657275,083
Events in quadrant D2,077,647263,762

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080642
B084881
C080141
D088201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3901210.538324%
B3901581.486798%
C390170.179441%
D3901461.179185%

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 4101 3903 0 0 0.00% 0.00%
B 4101 3903 3 3 0.07% 0.08%
C 4101 3903 0 0 0.00% 0.00%
D 4101 3903 22 22 0.54% 0.56%

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 0 254 5957 55.74 474 464 98.5
A 15 234 5132 47.37 474 464 98.5
A 0 226 4582 41.79 474 464 98.5
B 0 214 58312 627.37 476 463 92.2
B 11 51 48415 520.03 476 463 92.2
B 0 219 44423 476.74 476 463 92.2
C 13 61 3452 27.83 458 457 107.6
C 3 202 1157 6.5 458 457 107.6
C 12 4 1043 5.44 458 457 107.6
D 1 52 174038 1499.7 456 441 115.8
D 12 233 62469 535.86 456 441 115.8
D 7 71 32825 279.77 456 441 115.8

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